{"id":114389,"date":"2022-02-04T23:56:20","date_gmt":"2022-02-04T22:56:20","guid":{"rendered":"https:\/\/material-properties.org\/carbure-de-tungstene-tableau-des-materiaux-applications-prix\/"},"modified":"2022-02-04T23:56:20","modified_gmt":"2022-02-04T22:56:20","slug":"carbure-de-tungstene-tableau-des-materiaux-applications-prix","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/carbure-de-tungstene-tableau-des-materiaux-applications-prix\/","title":{"rendered":"Carbure de tungst\u00e8ne &#8211; Tableau des mat\u00e9riaux &#8211; Applications &#8211; Prix"},"content":{"rendered":"<h2><span>\u00c0 propos du carbure de tungst\u00e8ne<\/span><\/h2>\n<p><span>Le carbure de tungst\u00e8ne est un carbure tr\u00e8s dense contenant des parties \u00e9gales d&rsquo;atomes de tungst\u00e8ne et de carbone.\u00a0Dans sa forme la plus \u00e9l\u00e9mentaire, le carbure de tungst\u00e8ne est une fine poudre grise, mais il peut \u00eatre press\u00e9 et fa\u00e7onn\u00e9 par un processus appel\u00e9 frittage pour \u00eatre utilis\u00e9 dans les machines industrielles, les outils de coupe, les abrasifs, les obus perforants et les bijoux.\u00a0Le carbure de tungst\u00e8ne est environ deux fois plus rigide (haut module d&rsquo;\u00e9lasticit\u00e9) que l&rsquo;acier.\u00a0Le carbure de tungst\u00e8ne a une tr\u00e8s grande r\u00e9sistance aux chocs et une tr\u00e8s grande r\u00e9sistance pour un mat\u00e9riau aussi dur et rigide.\u00a0La r\u00e9sistance \u00e0 la compression est sup\u00e9rieure \u00e0 pratiquement tous les m\u00e9taux et alliages fondus et coul\u00e9s ou forg\u00e9s.\u00a0Avec une augmentation de la temp\u00e9rature \u00e0 1400 \u00b0 F, le carbure de tungst\u00e8ne conserve une grande partie de sa duret\u00e9 \u00e0 temp\u00e9rature ambiante.\u00a0<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/tungsten-carbide-properties-density-strength-price.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108598\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/tungsten-carbide-properties-density-strength-price-300x300.png\" alt=\"carbure de tungst\u00e8ne propri\u00e9t\u00e9s densit\u00e9 r\u00e9sistance prix\" width=\"500\" height=\"500\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/tungsten-carbide-properties-density-strength-price-300x300.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/tungsten-carbide-properties-density-strength-price-150x150.png 150w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/tungsten-carbide-properties-density-strength-price-768x768.png 768w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/tungsten-carbide-properties-density-strength-price.png 1000w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/a><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n<h2><span>Composition du carbure de tungst\u00e8ne<\/span><\/h2>\n<p><span>Le carbure de tungst\u00e8ne est pr\u00e9par\u00e9 par r\u00e9action de m\u00e9tal de tungst\u00e8ne et de carbone \u00e0 1400\u20132000 \u00b0C.\u00a0Le carbure de tungst\u00e8ne en poudre est m\u00e9lang\u00e9 avec un autre m\u00e9tal en poudre, g\u00e9n\u00e9ralement le cobalt peut \u00eatre press\u00e9 et fa\u00e7onn\u00e9 en formes par un processus appel\u00e9 frittage.\u00a0Le frittage est g\u00e9n\u00e9ralement effectu\u00e9 en dessous de la temp\u00e9rature de fusion, de sorte qu&rsquo;une phase liquide n&rsquo;est normalement pas pr\u00e9sente.\u00a0Le frittage est souvent choisi comme processus de mise en forme pour les mat\u00e9riaux \u00e0 points de fusion extr\u00eamement \u00e9lev\u00e9s tels que les c\u00e9ramiques de tungst\u00e8ne, de molybd\u00e8ne ou de dioxyde d&rsquo;uranium.\u00a0<div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p style=\"text-align: center;\"><span style=\"font-size: 50px;\"><span>94%<\/span><\/span><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Tungsten-periodic-table.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-thumbnail wp-image-92539\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Tungsten-periodic-table-150x150.png\" alt=\"Tungst\u00e8ne dans le tableau p\u00e9riodique\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p style=\"text-align: center;\"><span style=\"font-size: 50px;\"><span>6%<\/span><\/span><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Carbon-periodic-table.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-thumbnail wp-image-92294\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Carbon-periodic-table-150x150.png\" alt=\"Carbone dans le tableau p\u00e9riodique\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\"> <\/div><\/div><\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n<h2><span>Applications du carbure de tungst\u00e8ne<\/span><\/h2>\n<figure id=\"attachment_108094\" aria-describedby=\"caption-attachment-108094\" style=\"width: 290px\" class=\"wp-caption alignright\"><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Tungsten-Carbide-Material-Table-Applications-Price.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-108093 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Tungsten-Carbide-Material-Table-Applications-Price-300x125.jpg\" alt=\"Carbure de tungst\u00e8ne - Tableau des mat\u00e9riaux - Applications - Prix\" width=\"300\" height=\"125\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Tungsten-Carbide-Material-Table-Applications-Price-300x125.jpg 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Tungsten-Carbide-Material-Table-Applications-Price-1024x427.jpg 1024w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Tungsten-Carbide-Material-Table-Applications-Price-768x320.jpg 768w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Tungsten-Carbide-Material-Table-Applications-Price.jpg 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-108094\" class=\"wp-caption-text\"><span>Source : wikipedia.org Licence : CC BY-SA 3.0<\/span><\/figcaption><\/figure>\n<p><span>L&rsquo;exploitation mini\u00e8re et le traitement des min\u00e9raux exigent des machines et des composants r\u00e9sistants \u00e0 l&rsquo;usure, car les \u00e9nergies et les masses des corps en interaction sont importantes.\u00a0Pour cela, les mat\u00e9riaux les plus r\u00e9sistants \u00e0 l&rsquo;usure doivent \u00eatre utilis\u00e9s.\u00a0Par exemple, le carbure de tungst\u00e8ne est largement utilis\u00e9 dans l&rsquo;exploitation mini\u00e8re dans les forets \u00e0 marteau sup\u00e9rieur, les marteaux de fond de trou, les couteaux \u00e0 rouleau, les ciseaux de charrue \u00e0 longue paroi, les pics de cisaillement \u00e0 longue paroi, les al\u00e9soirs de forage ascendant et les tunneliers.\u00a0Les composites ciment\u00e9s de carbure de tungst\u00e8ne-cobalt sont connus sous de nombreux noms commerciaux diff\u00e9rents, notamment Widia et Carboloy.\u00a0<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n<h2><span>Propri\u00e9t\u00e9s m\u00e9caniques du carbure de tungst\u00e8ne<\/span><\/h2>\n<h3><span>Force du carbure de tungst\u00e8ne<\/span><\/h3>\n<p><span>En m\u00e9canique des mat\u00e9riaux, la\u00a0<\/span><strong><span>r\u00e9sistance d&rsquo;un mat\u00e9riau<\/span><\/strong><span>\u00a0est sa capacit\u00e9 \u00e0 supporter une charge appliqu\u00e9e sans rupture ni d\u00e9formation plastique.\u00a0<\/span><strong><span>La r\u00e9sistance des mat\u00e9riaux<\/span><\/strong><span>\u00a0consid\u00e8re essentiellement la relation entre les\u00a0<\/span><strong><span>charges externes<\/span><\/strong><span>\u00a0appliqu\u00e9es \u00e0 un mat\u00e9riau et la\u00a0<\/span><strong><span>d\u00e9formation<\/span><\/strong><span>\u00a0ou la modification des dimensions du mat\u00e9riau qui en r\u00e9sulte.\u00a0Lors de la conception de structures et de machines, il est important de tenir compte de ces facteurs, afin que le mat\u00e9riau s\u00e9lectionn\u00e9 ait une r\u00e9sistance suffisante pour r\u00e9sister aux charges ou forces appliqu\u00e9es et conserver sa forme d&rsquo;origine.<\/span><\/p>\n<p><strong><span>La r\u00e9sistance d&rsquo;un mat\u00e9riau<\/span><\/strong><span>\u00a0est sa capacit\u00e9 \u00e0 supporter cette charge appliqu\u00e9e sans d\u00e9faillance ni d\u00e9formation plastique.\u00a0Pour la contrainte de traction, la capacit\u00e9 d&rsquo;un mat\u00e9riau ou d&rsquo;une structure \u00e0 supporter des charges tendant \u00e0 s&rsquo;allonger est appel\u00e9e r\u00e9sistance ultime \u00e0 la traction (UTS).\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-is-yield-strength-yield-point-definition\/\"><span>La<\/span><\/a><span>\u00a0limite d&rsquo;\u00e9lasticit\u00e9 ou la limite d&rsquo;\u00e9lasticit\u00e9 est la propri\u00e9t\u00e9 du mat\u00e9riau d\u00e9finie comme la contrainte \u00e0 laquelle un mat\u00e9riau commence \u00e0 se d\u00e9former plastiquement, tandis que la limite d&rsquo;\u00e9lasticit\u00e9 est le point o\u00f9 la d\u00e9formation non lin\u00e9aire (\u00e9lastique + plastique) commence.\u00a0En cas de contrainte de traction d&rsquo;une barre uniforme (courbe contrainte-d\u00e9formation), la\u00a0\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-is-hookes-law-definition\/\"><b><span>loi de Hooke<\/span><\/b><\/a><span>\u00a0d\u00e9crit le comportement d&rsquo;une barre dans la r\u00e9gion \u00e9lastique.\u00a0Le\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-is-youngs-modulus-of-elasticity-definition\/\"><span>module d&rsquo;\u00e9lasticit\u00e9 de Young<\/span><\/a><span>est le module d&rsquo;\u00e9lasticit\u00e9 pour les contraintes de traction et de compression dans le r\u00e9gime d&rsquo;\u00e9lasticit\u00e9 lin\u00e9aire d&rsquo;une d\u00e9formation uniaxiale et est g\u00e9n\u00e9ralement \u00e9valu\u00e9 par des essais de traction.<\/span><\/p>\n<p><span>Voir aussi :\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-is-strength-definition\/\"><span>R\u00e9sistance des mat\u00e9riaux<\/span><\/a><\/p>\n<h3><span>R\u00e9sistance \u00e0 la traction ultime du carbure de tungst\u00e8ne<\/span><\/h3>\n<p><span>La r\u00e9sistance \u00e0 la traction ultime du carbure de tungst\u00e8ne est de 370 MPa.<\/span><\/p>\n<h3><span>Limite d&rsquo;\u00e9lasticit\u00e9 du carbure de tungst\u00e8ne<\/span><\/h3>\n<p><span>La limite d&rsquo;\u00e9lasticit\u00e9 du carbure de tungst\u00e8ne\u00a0<\/span><strong>\u00a0<\/strong><span>est de 330 MPa.<\/span><\/p>\n<h3><span>Module d&rsquo;\u00e9lasticit\u00e9 du carbure de tungst\u00e8ne<\/span><\/h3>\n<p><span>Le module d&rsquo;\u00e9lasticit\u00e9 de Young du carbure de tungst\u00e8ne est de 600 MPa.<\/span><\/p>\n<h3><span>Duret\u00e9 du carbure de tungst\u00e8ne<\/span><\/h3>\n<p><span>En science des mat\u00e9riaux, la\u00a0\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/hardness\/\"><strong><span>duret\u00e9<\/span><\/strong><\/a><span>\u00a0\u00a0est la capacit\u00e9 \u00e0 r\u00e9sister \u00e0\u00a0\u00a0<\/span><strong><span>l&rsquo;indentation de surface<\/span><\/strong><span>\u00a0\u00a0(\u00a0<\/span><strong><span>d\u00e9formation plastique localis\u00e9e<\/span><\/strong><span>\u00a0) et\u00a0 aux\u00a0<\/span><strong><span>rayures<\/span><\/strong><span>\u00a0.\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/hardness\/brinell-hardness-test\/\"><strong><span>Le test de duret\u00e9 Brinell<\/span><\/strong><\/a><span>\u00a0\u00a0est l&rsquo;un des tests de duret\u00e9 par indentation, qui a \u00e9t\u00e9 d\u00e9velopp\u00e9 pour les tests de duret\u00e9.\u00a0Dans les tests Brinell, un\u00a0\u00a0<\/span><strong><span>p\u00e9n\u00e9trateur sph\u00e9rique<\/span><\/strong><span>\u00a0dur est forc\u00e9 sous une charge sp\u00e9cifique dans la surface du m\u00e9tal \u00e0 tester.<\/span><\/p>\n<p><span>L&rsquo;\u00a0 indice de\u00a0<\/span><strong><span>duret\u00e9 Brinell<\/span><\/strong><span>\u00a0\u00a0(HB) est la charge divis\u00e9e par la surface de l&rsquo;indentation.\u00a0Le diam\u00e8tre de l&#8217;empreinte est mesur\u00e9 avec un microscope \u00e0 \u00e9chelle superpos\u00e9e.\u00a0Le nombre de duret\u00e9 Brinell est calcul\u00e9 \u00e0 partir de l&rsquo;\u00e9quation\u00a0:<\/span><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/brinell-hardness-number-definition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-90675\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/brinell-hardness-number-definition.png\" sizes=\"(max-width: 320px) 100vw, 320px\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/brinell-hardness-number-definition.png 320w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/brinell-hardness-number-definition-300x178.png 300w\" alt=\"indice de duret\u00e9 Brinell - d\u00e9finition\" width=\"320\" height=\"190\" \/><\/a><\/p>\n<p><span>La duret\u00e9 Brinell du carbure de tungst\u00e8ne est d&rsquo;environ 25 000 BHN (converti).<\/span><\/p>\n<p><span>Voir aussi :\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-is-hardness-definition\/\"><span>Duret\u00e9 des mat\u00e9riaux<\/span><\/a><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>La r\u00e9sistance des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/strength-of-materials-tensile-yield\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108070 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Strength-of-Materials-300x182.png\" alt=\"Tableau des mat\u00e9riaux - R\u00e9sistance des mat\u00e9riaux\" width=\"300\" height=\"182\" \/><\/a><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>\u00c9lasticit\u00e9 des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/elasticity-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108080 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Elasticity-of-Materials-300x185.png\" alt=\"Tableau des mat\u00e9riaux - \u00c9lasticit\u00e9 des mat\u00e9riaux\" width=\"300\" height=\"185\" \/><\/a><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>Duret\u00e9 des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/hardness-of-materials-brinell-mohs\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108085 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Hardness-of-Materials-300x182.png\" alt=\"Tableau des mat\u00e9riaux - Duret\u00e9 des mat\u00e9riaux\" width=\"300\" height=\"182\" \/><\/a><span>\u00a0 <\/span><\/p><\/div><\/div> <div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n<h2><span>Propri\u00e9t\u00e9s thermiques du carbure de tungst\u00e8ne<\/span><\/h2>\n<h3><span>Carbure de tungst\u00e8ne &#8211; Point de fusion<\/span><\/h3>\n<p><strong><span>Le point de fusion du carbure de tungst\u00e8ne est de 2867\u00a0<\/span><\/strong><strong><span>\u00b0C<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span>Notez que ces points sont associ\u00e9s \u00e0 la pression atmosph\u00e9rique standard.\u00a0En g\u00e9n\u00e9ral, la\u00a0\u00a0<\/span><strong><span>fusion<\/span><\/strong><span>\u00a0\u00a0est un\u00a0\u00a0<\/span><strong><span>changement de phase<\/span><\/strong><span>\u00a0\u00a0d&rsquo;une substance de la phase solide \u00e0 la phase liquide.\u00a0Le\u00a0\u00a0<\/span><strong><span>point de fusion<\/span><\/strong><span>\u00a0\u00a0d&rsquo;une substance est la temp\u00e9rature \u00e0 laquelle ce changement de phase se produit.\u00a0Le\u00a0\u00a0<\/span><strong><span>point de fusion\u00a0<\/span><\/strong><span>\u00a0d\u00e9finit \u00e9galement une condition dans laquelle le solide et le liquide peuvent exister en \u00e9quilibre.\u00a0Pour divers compos\u00e9s chimiques et alliages, il est difficile de d\u00e9finir le point de fusion, car il s&rsquo;agit g\u00e9n\u00e9ralement d&rsquo;un m\u00e9lange de divers \u00e9l\u00e9ments chimiques.<\/span><\/p>\n<h3><span>Carbure de tungst\u00e8ne &#8211; Conductivit\u00e9 thermique<\/span><\/h3>\n<p><span>La conductivit\u00e9 thermique du\u00a0<\/span><strong><span>carbure de tungst\u00e8ne<\/span><\/strong><span>\u00a0\u00a0est\u00a0 de\u00a0<\/span><strong><span>110\u00a0<\/span><\/strong><strong><span>W\/(m\u00b7K)<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span>Les caract\u00e9ristiques de transfert de chaleur d&rsquo;un mat\u00e9riau solide sont mesur\u00e9es par une propri\u00e9t\u00e9 appel\u00e9e la\u00a0\u00a0<\/span><strong><span>conductivit\u00e9 thermique<\/span><\/strong><span>\u00a0, k (ou \u03bb), mesur\u00e9e en\u00a0\u00a0<\/span><strong><span>W\/mK<\/span><\/strong><span>\u00a0.\u00a0C&rsquo;est une mesure de la capacit\u00e9 d&rsquo;une substance \u00e0 transf\u00e9rer de la chaleur \u00e0 travers un mat\u00e9riau par\u00a0\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conduction-heat-conduction-definition\/\"><span>conduction<\/span><\/a><span>\u00a0.\u00a0Notez que\u00a0\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-fouriers-law-of-thermal-conduction-definition\/\"><strong><span>la loi de Fourier<\/span><\/strong><\/a><span>\u00a0\u00a0s&rsquo;applique \u00e0 toute mati\u00e8re, quel que soit son \u00e9tat (solide, liquide ou gazeux), par cons\u00e9quent, elle est \u00e9galement d\u00e9finie pour les liquides et les gaz.<\/span><\/p>\n<p><span>La\u00a0\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conductivity-definition\/\"><strong><span>conductivit\u00e9 thermique<\/span><\/strong><\/a><span>\u00a0\u00a0de la plupart des liquides et des solides varie avec la temp\u00e9rature.\u00a0Pour les vapeurs, cela d\u00e9pend aussi de la pression.\u00a0En g\u00e9n\u00e9ral:<\/span><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/thermal-conductivity-definition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-88791\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/thermal-conductivity-definition.png\" alt=\"conductivit\u00e9 thermique - d\u00e9finition\" width=\"225\" height=\"75\" \/><\/a><\/p>\n<p><span>La plupart des mat\u00e9riaux sont presque homog\u00e8nes, nous pouvons donc g\u00e9n\u00e9ralement \u00e9crire\u00a0\u00a0<\/span><strong><em><span>k = k (T)<\/span><\/em><\/strong><span>\u00a0.\u00a0Des d\u00e9finitions similaires sont associ\u00e9es aux conductivit\u00e9s thermiques dans les directions y et z (ky, kz), mais pour un mat\u00e9riau isotrope, la conductivit\u00e9 thermique est ind\u00e9pendante de la direction de transfert, kx = ky = kz = k.<\/span><\/p>\n<h3><span>Carbure de tungst\u00e8ne &#8211; Chaleur sp\u00e9cifique<\/span><\/h3>\n<p><strong><span>La chaleur sp\u00e9cifique du carbure de tungst\u00e8ne est de\u00a0<\/span><\/strong><strong><span>292 J\/g K<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><strong><span>La chaleur sp\u00e9cifique, ou capacit\u00e9 thermique sp\u00e9cifique,\u00a0<\/span><\/strong><span>\u00a0est une propri\u00e9t\u00e9 li\u00e9e \u00e0\u00a0<strong><a href=\"https:\/\/www.thermal-engineering.org\/what-is-internal-energy-thermal-energy-definition\/\">l&rsquo;\u00e9nergie interne<\/a><\/strong>\u00a0\u00a0tr\u00e8s importante en thermodynamique.\u00a0Les\u00a0\u00a0<strong>propri\u00e9t\u00e9s intensives\u00a0\u00a0<\/strong><strong><em>c\u00a0<\/em><\/strong><strong><em><sub>v<\/sub><\/em><\/strong>\u00a0\u00a0et\u00a0\u00a0<strong><em>c\u00a0<\/em><\/strong><strong><em><sub>p<\/sub><\/em><\/strong>\u00a0\u00a0sont d\u00e9finies pour des substances compressibles pures et simples comme des d\u00e9riv\u00e9es partielles de l&rsquo;\u00a0\u00a0<strong>\u00e9nergie interne\u00a0\u00a0<\/strong><strong><em>u(T, v)<\/em><\/strong>\u00a0\u00a0et de\u00a0 l&rsquo;\u00a0<strong>enthalpie\u00a0\u00a0<\/strong><strong><em>h(T, p)<\/em><\/strong>\u00a0, respectivement\u00a0:<\/span><strong>\u00a0<\/strong><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/Specific-Heat-at-Constant-Volume-and-Constant-Pressure.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-87687\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/Specific-Heat-at-Constant-Volume-and-Constant-Pressure.png\" alt=\"\" width=\"106\" height=\"138\" \/><\/a><\/p>\n<p><span>o\u00f9 les indices\u00a0\u00a0<\/span><strong><span>v<\/span><\/strong><span>\u00a0\u00a0et\u00a0\u00a0<\/span><strong><span>p<\/span><\/strong><span>\u00a0\u00a0d\u00e9signent les variables maintenues fixes lors de la diff\u00e9renciation.\u00a0Les propri\u00e9t\u00e9s\u00a0\u00a0<\/span><strong><span>c\u00a0<\/span><sub><span>v<\/span><\/sub>\u00a0<\/strong><span>\u00a0et\u00a0\u00a0<\/span><strong><span>c\u00a0<\/span><sub><span>p<\/span><\/sub><\/strong><span>\u00a0\u00a0sont appel\u00e9es\u00a0\u00a0<\/span><strong><span>chaleurs sp\u00e9cifiques\u00a0<\/span><\/strong><span>\u00a0(ou\u00a0\u00a0<\/span><strong><span>capacit\u00e9s calorifiques<\/span><\/strong><span>\u00a0) car, dans certaines conditions particuli\u00e8res, elles relient le changement de temp\u00e9rature d&rsquo;un syst\u00e8me \u00e0 la quantit\u00e9 d&rsquo;\u00e9nergie ajout\u00e9e par transfert de chaleur.\u00a0Leurs unit\u00e9s SI sont\u00a0\u00a0<\/span><strong><span>J\/kg K<\/span><\/strong><span>\u00a0\u00a0ou\u00a0\u00a0<\/span><strong><span>J\/mol K<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>Point de fusion des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/melting-point-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108050 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Metling-Point-300x183.png\" alt=\"Tableau des mat\u00e9riaux - Point de fusion\" width=\"300\" height=\"183\" \/><\/a><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>Conductivit\u00e9 thermique des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/thermal-conductivity-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108055 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Thermal-Conductivity-300x180.png\" alt=\"Tableau des mat\u00e9riaux - Conductivit\u00e9 thermique\" width=\"300\" height=\"180\" \/><\/a><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>Capacit\u00e9 calorifique des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/heat-capacity-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108063 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Heat-Capacity-300x179.png\" alt=\"Tableau des mat\u00e9riaux - Capacit\u00e9 calorifique\" width=\"300\" height=\"179\" \/><\/a><\/p>\n<h3 style=\"text-align: center;\"><\/h3>\n<p><span><\/span><\/p><\/div><\/div> <div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n<h2><span>Propri\u00e9t\u00e9s et prix des autres mat\u00e9riaux<\/span><\/h2>\n<p><span>table-de-mat\u00e9riaux-en-r\u00e9solution-8k<\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:20px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c0 propos du carbure de tungst\u00e8ne Le carbure de tungst\u00e8ne est un carbure tr\u00e8s dense contenant des parties \u00e9gales d&rsquo;atomes de tungst\u00e8ne et de carbone.\u00a0Dans sa forme la plus \u00e9l\u00e9mentaire, le carbure de tungst\u00e8ne est une fine poudre grise, mais il peut \u00eatre press\u00e9 et fa\u00e7onn\u00e9 par un processus appel\u00e9 frittage pour \u00eatre utilis\u00e9 dans &#8230; <a title=\"Carbure de tungst\u00e8ne &#8211; Tableau des mat\u00e9riaux &#8211; Applications &#8211; Prix\" class=\"read-more\" href=\"https:\/\/material-properties.org\/fr\/carbure-de-tungstene-tableau-des-materiaux-applications-prix\/\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Carbure de tungst\u00e8ne | Propri\u00e9t\u00e9s, Prix &amp; Application | Propri\u00e9t\u00e9s mat\u00e9rielles<\/title>\n<meta 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Dans sa forme la plus \u00e9l\u00e9mentaire, le carbure de tungst\u00e8ne est une fine poudre grise, mais il peut \u00eatre press\u00e9 et fa\u00e7onn\u00e9 pour \u00eatre utilis\u00e9 dans les machines industrielles, les outils de coupe, les abrasifs, les obus perforants et les bijoux. 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Dans sa forme la plus \u00e9l\u00e9mentaire, le carbure de tungst\u00e8ne est une fine poudre grise, mais il peut \u00eatre press\u00e9 et fa\u00e7onn\u00e9 pour \u00eatre utilis\u00e9 dans les machines industrielles, les outils de coupe, les abrasifs, les obus perforants et les bijoux. 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Dans sa forme la plus \u00e9l\u00e9mentaire, le carbure de tungst\u00e8ne est une fine poudre grise, mais il peut \u00eatre press\u00e9 et fa\u00e7onn\u00e9 pour \u00eatre utilis\u00e9 dans les machines industrielles, les outils de coupe, les abrasifs, les obus perforants et les bijoux. Son prix est d'environ 300 $\/kg.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/material-properties.org\/fr\/carbure-de-tungstene-tableau-des-materiaux-applications-prix\/","og_locale":"fr_FR","og_type":"article","og_title":"Carbure de tungst\u00e8ne | Propri\u00e9t\u00e9s, Prix & Application | Propri\u00e9t\u00e9s mat\u00e9rielles","og_description":"Le carbure de tungst\u00e8ne est un carbure tr\u00e8s dense contenant des parties \u00e9gales d'atomes de tungst\u00e8ne et de carbone. Dans sa forme la plus \u00e9l\u00e9mentaire, le carbure de tungst\u00e8ne est une fine poudre grise, mais il peut \u00eatre press\u00e9 et fa\u00e7onn\u00e9 pour \u00eatre utilis\u00e9 dans les machines industrielles, les outils de coupe, les abrasifs, les obus perforants et les bijoux. Son prix est d'environ 300 $\/kg.","og_url":"https:\/\/material-properties.org\/fr\/carbure-de-tungstene-tableau-des-materiaux-applications-prix\/","og_site_name":"Material Properties","article_published_time":"2022-02-04T22:56:20+00:00","og_image":[{"url":"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/tungsten-carbide-properties-density-strength-price-300x300.png"}],"author":"Nick Connor","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Nick Connor","Dur\u00e9e de lecture estim\u00e9e":"8 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/material-properties.org\/fr\/carbure-de-tungstene-tableau-des-materiaux-applications-prix\/","url":"https:\/\/material-properties.org\/fr\/carbure-de-tungstene-tableau-des-materiaux-applications-prix\/","name":"Carbure de tungst\u00e8ne | Propri\u00e9t\u00e9s, Prix & Application | Propri\u00e9t\u00e9s mat\u00e9rielles","isPartOf":{"@id":"https:\/\/material-properties.org\/fr\/#website"},"datePublished":"2022-02-04T22:56:20+00:00","dateModified":"2022-02-04T22:56:20+00:00","author":{"@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb"},"description":"Le carbure de tungst\u00e8ne est un carbure tr\u00e8s dense contenant des parties \u00e9gales d'atomes de tungst\u00e8ne et de carbone. 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Son prix est d'environ 300 $\/kg.","breadcrumb":{"@id":"https:\/\/material-properties.org\/fr\/carbure-de-tungstene-tableau-des-materiaux-applications-prix\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/material-properties.org\/fr\/carbure-de-tungstene-tableau-des-materiaux-applications-prix\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/material-properties.org\/fr\/carbure-de-tungstene-tableau-des-materiaux-applications-prix\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom\u016f","item":"https:\/\/material-properties.org\/fr\/"},{"@type":"ListItem","position":2,"name":"Carbure de tungst\u00e8ne &#8211; Tableau des mat\u00e9riaux &#8211; Applications &#8211; Prix"}]},{"@type":"WebSite","@id":"https:\/\/material-properties.org\/fr\/#website","url":"https:\/\/material-properties.org\/fr\/","name":"Material Properties","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/material-properties.org\/fr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb","name":"Nick Connor","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g","caption":"Nick Connor"},"url":"https:\/\/material-properties.org\/fr\/author\/matan\/"}]}},"_links":{"self":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts\/114389"}],"collection":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/comments?post=114389"}],"version-history":[{"count":0,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts\/114389\/revisions"}],"wp:attachment":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/media?parent=114389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/categories?post=114389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/tags?post=114389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}