{"id":116175,"date":"2022-05-10T19:36:56","date_gmt":"2022-05-10T18:36:56","guid":{"rendered":"https:\/\/material-properties.org\/quelles-sont-les-proprietes-thermiques-des-bronzes-definition\/"},"modified":"2022-05-17T07:25:01","modified_gmt":"2022-05-17T06:25:01","slug":"quelles-sont-les-proprietes-thermiques-des-bronzes-definition","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/quelles-sont-les-proprietes-thermiques-des-bronzes-definition\/","title":{"rendered":"Quelles sont les propri\u00e9t\u00e9s thermiques des bronzes &#8211; D\u00e9finition"},"content":{"rendered":"<p><span><div class=\"su-quote su-quote-style-default\"><div class=\"su-quote-inner su-u-clearfix su-u-trim\">Propri\u00e9t\u00e9s thermiques des bronzes.\u00a0Le point de fusion des bronzes se situe g\u00e9n\u00e9ralement autour de 1000 \u00b0C. La conductivit\u00e9 thermique des bronzes varie de 50 \u00e0 120 W\/(mK) selon la teneur en cuivre.<\/div><\/div><\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/aluminium-bronze-properties-min.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright size-medium wp-image-29639\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/aluminium-bronze-properties-min-300x300.png\" alt=\"bronze d'aluminium\" width=\"300\" height=\"300\" \/><\/a><span>Les\u00a0<\/span><strong><span>bronzes<\/span><\/strong><span>\u00a0sont une famille d&rsquo;alliages \u00e0 base de cuivre traditionnellement alli\u00e9s \u00e0 l&rsquo;\u00e9tain, mais peuvent d\u00e9signer des alliages de cuivre et d&rsquo;autres \u00e9l\u00e9ments (par exemple l&rsquo;aluminium, le silicium et le nickel).\u00a0<\/span><strong><span>Les bronzes<\/span><\/strong><span>\u00a0sont un peu plus r\u00e9sistants que les laitons, mais ils ont toujours un degr\u00e9 \u00e9lev\u00e9 de r\u00e9sistance \u00e0 la corrosion.\u00a0G\u00e9n\u00e9ralement, ils sont utilis\u00e9s lorsque, en plus de la r\u00e9sistance \u00e0 la corrosion, de bonnes propri\u00e9t\u00e9s de traction sont requises.\u00a0Par exemple, le cuivre au b\u00e9ryllium atteint la plus grande r\u00e9sistance (jusqu&rsquo;\u00e0 1 400 MPa) de tous les alliages \u00e0 base de cuivre.<\/span><\/p>\n<p><span>Historiquement, l&rsquo;alliage du cuivre avec un autre m\u00e9tal, par exemple l&rsquo;\u00e9tain pour fabriquer du bronze, a \u00e9t\u00e9 pratiqu\u00e9 pour la premi\u00e8re fois environ 4000 ans apr\u00e8s la d\u00e9couverte de la fusion du cuivre, et environ 2000 ans apr\u00e8s que le \u00ab\u00a0bronze naturel\u00a0\u00bb soit devenu d&rsquo;usage g\u00e9n\u00e9ral.\u00a0Une civilisation ancienne est d\u00e9finie comme \u00e9tant \u00e0 l&rsquo;\u00e2ge du bronze soit en produisant du bronze en fondant son propre cuivre et en l&rsquo;alliant avec de l&rsquo;\u00e9tain, de l&rsquo;arsenic ou d&rsquo;autres m\u00e9taux.\u00a0Le bronze, ou les alliages et m\u00e9langes de type bronze, ont \u00e9t\u00e9 utilis\u00e9s pour les pi\u00e8ces de monnaie sur une plus longue p\u00e9riode.\u00a0est encore largement utilis\u00e9 aujourd&rsquo;hui pour les ressorts, les roulements, les bagues, les roulements pilotes de transmission automobile et les raccords similaires, et est particuli\u00e8rement courant dans les roulements des petits moteurs \u00e9lectriques.\u00a0Le laiton et le bronze sont des mat\u00e9riaux d&rsquo;ing\u00e9nierie courants dans l&rsquo;architecture moderne et principalement utilis\u00e9s pour les toitures et les rev\u00eatements de fa\u00e7ade en raison de leur aspect visuel.<\/span><\/p>\n<h2><span>Propri\u00e9t\u00e9s thermiques des bronzes<\/span><\/h2>\n<p><strong><span>Les propri\u00e9t\u00e9s thermiques<\/span><\/strong><span> des mat\u00e9riaux font r\u00e9f\u00e9rence \u00e0 la r\u00e9ponse des mat\u00e9riaux aux changements de leur <\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/<a href=\"https:\/\/modern-physics.org\/thermodynamics\/\">thermodynamics<\/a>\/thermodynamic-properties\/what-is-temperature-physics\/\u00a0\u00bb><span>temp\u00e9rature<\/span><span>\u00a0et \u00e0 l&rsquo;application de\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/heat-transfer\/introduction-to-heat-transfer\/heat-in-physics-definition-of-heat\/\"><span>chaleur<\/span><\/a><span>.\u00a0Lorsqu&rsquo;un solide absorbe de\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/<a href=\"https:\/\/modern-physics.org\/thermodynamics\/\">thermodynamics<\/a>\/what-is-energy-physics\/\u00a0\u00bb><span>l&rsquo;\u00e9nergie<\/span><span>\u00a0sous forme de chaleur, sa temp\u00e9rature augmente et ses dimensions augmentent.\u00a0Mais\u00a0<\/span><strong><span>diff\u00e9rents mat\u00e9riaux r\u00e9agissent diff\u00e9remment\u00a0<\/span><\/strong><strong><span>\u00e0<\/span><\/strong><span> l&rsquo;application de chaleur.<\/span><\/p>\n<p><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/thermal-properties-of-materials\/specific-heat-capacity-of-materials\/\"><span>La capacit\u00e9 calorifique<\/span><\/a><span>,\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/thermal-properties-of-materials\/coefficient-of-thermal-expansion-of-materials\/\"><span>la dilatation<\/span><\/a><span>\u00a0thermique et\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conductivity-definition\/\"><span>la conductivit\u00e9 thermique<\/span><\/a><span>\u00a0sont des propri\u00e9t\u00e9s qui sont souvent critiques dans l&rsquo;utilisation pratique des solides.<\/span><\/p>\n<h3><span>Point de fusion des bronzes<\/span><\/h3>\n<p><span>Le point de fusion du\u00a0<\/span><strong><span>bronze d&rsquo;aluminium \u2013 UNS C95400<\/span><\/strong><span> est d&rsquo;environ 1030 \u00b0C.<\/span><\/p>\n<p><span>Le point de fusion du\u00a0<\/span><strong><span>bronze \u00e0 l&rsquo;\u00e9tain &#8211; UNS C90500 &#8211; le bronze \u00e0 canon<\/span><\/strong><span> est d&rsquo;environ 1000 \u00b0C.<\/span><\/p>\n<p><span>Le point de fusion du\u00a0<\/span><strong><span>cuivre\u00a0<\/span><\/strong><strong><span>b\u00e9ryllium \u2013 UNS C17200<\/span><\/strong><span> est d&rsquo;environ 866 \u00b0C.<\/span><\/p>\n<p><span>En g\u00e9n\u00e9ral, la <\/span><strong><span>fusion<\/span><\/strong><span> est un <strong>c<\/strong><\/span><strong><span>hangement de phase<\/span><\/strong><span> d&rsquo;une substance de la phase solide \u00e0 la phase liquide.\u00a0Le <\/span><a href=\"https:\/\/material-properties.org\/melting-point-of-chemical-elements\/\"><strong><span>point de fusion<\/span><\/strong><\/a><span>\u00a0d&rsquo;une substance est la temp\u00e9rature \u00e0 laquelle ce changement de phase se produit.\u00a0Le <\/span><strong><span>point de fusion <\/span><\/strong><span>d\u00e9finit \u00e9galement une condition dans laquelle le solide et le liquide peuvent exister en \u00e9quilibre.<\/span><\/p>\n<h3><span>Conductivit\u00e9 thermique des bronzes<\/span><\/h3>\n<p><span>La conductivit\u00e9 thermique du\u00a0<\/span><strong><span>bronze d&rsquo;aluminium \u2013 UNS C95400<\/span><\/strong><span>\u00a0est de 59 W\/(mK).<\/span><\/p>\n<p><span>La conductivit\u00e9 thermique du\u00a0<\/span><strong><span>bronze \u00e0 l&rsquo;\u00e9tain \u2013 UNS C90500 \u2013 bronze \u00e0 canon<\/span><\/strong><span>\u00a0est de 75 W\/(mK).<\/span><\/p>\n<p><span>La conductivit\u00e9 thermique du\u00a0<\/span><strong><span>cuivre\u00a0<\/span><\/strong><strong><span>b\u00e9ryllium \u2013 UNS C17200<\/span><\/strong><span>\u00a0est de 115 W\/(mK).<\/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 <\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conductivity-definition\/\"><strong><span>conductivit\u00e9 thermique<\/span><\/strong><\/a><span>, k (ou \u03bb), mesur\u00e9e en\u00a0<\/span><strong><span>W\/mK<\/span><\/strong><span>.\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 <\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conduction-heat-conduction-definition\/\"><span>conduction<\/span><\/a><span>.\u00a0Notez que <\/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> s&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 <\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conductivity-definition\/\"><strong><span>conductivit\u00e9 thermique<\/span><\/strong><\/a><span>\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:\/\/www.nuclear-power.com\/wp-content\/uploads\/2017\/10\/thermal-conductivity-definition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-20041\" src=\"https:\/\/www.nuclear-power.com\/wp-content\/uploads\/2017\/10\/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 <\/span><strong><span>k = k (T)<\/span><\/strong><span>.\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<p><span><\/span><\/p><\/div><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><span><div class=\"su-accordion su-u-trim\"><div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-plus\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>R\u00e9f\u00e9rences :<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">Science des mat\u00e9riaux:<\/div><\/div><\/div><\/span><\/p>\n<p><span>D\u00e9partement am\u00e9ricain de l&rsquo;\u00e9nergie, science des mat\u00e9riaux.\u00a0DOE Fundamentals Handbook, Volume 1 and 2. Janvier 1993.<\/span><br \/>\n<span>US Department of Energy, Material Science.\u00a0DOE Fundamentals Handbook, Volume 2 et 2. Janvier 1993.<\/span><br \/>\n<span>William D. Callister, David G. Rethwisch.\u00a0Science et g\u00e9nie des mat\u00e9riaux : une introduction 9e \u00e9dition, Wiley ;\u00a09 \u00e9dition (4 d\u00e9cembre 2013), ISBN-13\u00a0: 978-1118324578.<\/span><br \/>\n<span>En ligneEberhart, Mark (2003).\u00a0Pourquoi les choses se cassent\u00a0: Comprendre le monde par la mani\u00e8re dont il se d\u00e9compose.\u00a0Harmonie.\u00a0ISBN 978-1-4000-4760-4.<\/span><br \/>\n<span>Gaskell, David R. (1995).\u00a0Introduction \u00e0 la thermodynamique des mat\u00e9riaux (4e \u00e9d.).\u00a0\u00c9ditions Taylor et Francis.\u00a0ISBN 978-1-56032-992-3.<\/span><br \/>\n<span>Gonz\u00e1lez-Vi\u00f1as, W. &amp; Mancini, HL (2004).\u00a0Une introduction \u00e0 la science des mat\u00e9riaux.\u00a0Presse universitaire de Princeton.\u00a0ISBN 978-0-691-07097-1.<\/span><br \/>\n<span>Ashby, Michael;\u00a0Hugh Shercliff;\u00a0David Cebon (2007).\u00a0Mat\u00e9riaux: ing\u00e9nierie, science, traitement et conception (1\u00e8re \u00e9d.).\u00a0Butterworth-Heinemann.\u00a0ISBN 978-0-7506-8391-3.<\/span><br \/>\n<span>JR Lamarsh, AJ Baratta, Introduction au g\u00e9nie nucl\u00e9aire, 3e \u00e9d., Prentice-Hall, 2001, ISBN : 0-201-82498-1.<\/span><br \/>\n<span><\/span><\/p><\/div><\/div><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><div class=\"su-divider su-divider-style-default\" style=\"margin:15px 0;border-width:2px;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\"><\/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><span>Voir ci-dessus:<\/span><br \/>\n<span>Bronze<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/alloys-composition-properties-of-metal-alloys\/copper-alloys\/bronze \/\" class=\"su-button su-button-style-flat\" style=\"color:#606060;background-color:#ffffff;border-color:#cccccc;border-radius:10px;-moz-border-radius:10px;-webkit-border-radius:10px\" target=\"_self\"><span style=\"color:#606060;padding:7px 20px;font-size:16px;line-height:24px;border-color:#ffffff;border-radius:10px;-moz-border-radius:10px;-webkit-border-radius:10px;text-shadow:0px 0px 0px #000000 ;-moz-text-shadow:0px 0px 0px #000000 ;-webkit-text-shadow:0px 0px 0px #000000 \"><img src=\"icon : lien\" alt=\"\" style=\"width:24px;height:24px\" \/> <\/span><\/a><\/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:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<p><span>Nous esp\u00e9rons que cet article,\u00a0<\/span><strong><span>Propri\u00e9t\u00e9s thermiques des bronzes<\/span><\/strong><span>, vous aidera.\u00a0Si oui,\u00a0<\/span><strong><span>donnez-nous un like<\/span><\/strong><span>\u00a0dans la barre lat\u00e9rale.\u00a0L&rsquo;objectif principal de ce site Web est d&rsquo;aider le public \u00e0 apprendre des informations int\u00e9ressantes et importantes sur les mat\u00e9riaux et leurs propri\u00e9t\u00e9s.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nous esp\u00e9rons que cet article,\u00a0Propri\u00e9t\u00e9s thermiques des bronzes, vous aidera.\u00a0Si oui,\u00a0donnez-nous un like\u00a0dans la barre lat\u00e9rale.\u00a0L&rsquo;objectif principal de ce site Web est d&rsquo;aider le public \u00e0 apprendre des informations int\u00e9ressantes et importantes sur les mat\u00e9riaux et leurs propri\u00e9t\u00e9s.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Quelles sont les propri\u00e9t\u00e9s thermiques des bronzes - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles<\/title>\n<meta name=\"description\" content=\"Propri\u00e9t\u00e9s thermiques des bronzes. 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