{"id":116091,"date":"2022-05-09T20:18:11","date_gmt":"2022-05-09T19:18:11","guid":{"rendered":"https:\/\/material-properties.org\/quelle-est-la-composition-de-constantan-45ni-55cu-definition\/"},"modified":"2022-05-16T07:44:03","modified_gmt":"2022-05-16T06:44:03","slug":"quelle-est-la-composition-de-constantan-45ni-55cu-definition","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/quelle-est-la-composition-de-constantan-45ni-55cu-definition\/","title":{"rendered":"Quelle est la composition de Constantan – 45Ni-55Cu – D\u00e9finition"},"content":{"rendered":"

Composition du Constantan \u2013 45Ni-55Cu.\u00a0Le constantan se compose g\u00e9n\u00e9ralement de 55\u00a0% de cuivre et de 45\u00a0% de nickel et de quantit\u00e9s mineures sp\u00e9cifiques d’\u00e9l\u00e9ments suppl\u00e9mentaires.<\/div><\/div><\/span><\/p>\n

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Le constantan<\/span><\/strong>\u00a0est un alliage cuivre-nickel compos\u00e9 g\u00e9n\u00e9ralement de 55% de cuivre et de 45% de nickel et de quantit\u00e9s mineures sp\u00e9cifiques d’\u00e9l\u00e9ments suppl\u00e9mentaires pour obtenir des valeurs pr\u00e9cises (presque constantes) du\u00a0<\/span>coefficient de temp\u00e9rature de r\u00e9sistivit\u00e9<\/span><\/strong>.\u00a0Cela signifie que sa principale caract\u00e9ristique est la faible variation thermique de sa r\u00e9sistivit\u00e9, qui est constante sur une large plage de temp\u00e9ratures.\u00a0D’autres alliages avec des coefficients de temp\u00e9rature \u00e9galement bas sont connus, comme le manganin.<\/span><\/p>\n

Cet alliage a une r\u00e9sistivit\u00e9 \u00e9lectrique \u00e9lev\u00e9e (4,9 x 10<\/span>\u22127<\/span><\/sup>\u00a0\u03a9\u00b7m), suffisamment \u00e9lev\u00e9e pour atteindre des valeurs de r\u00e9sistance appropri\u00e9es m\u00eame dans de tr\u00e8s petites grilles, le coefficient de temp\u00e9rature de r\u00e9sistance le plus bas et la FEM thermique la plus \u00e9lev\u00e9e (\u00e9galement connue sous le nom d’effet Seebeck) contre le platine de n’importe lequel des alliages cuivre-nickel.\u00a0En raison des deux premi\u00e8res de ces propri\u00e9t\u00e9s, il est utilis\u00e9 pour les r\u00e9sistances \u00e9lectriques, et en raison de la derni\u00e8re propri\u00e9t\u00e9, pour les thermocouples.\u00a0<\/span>Les thermocouples<\/span><\/strong>\u00a0sont des appareils \u00e9lectriques constitu\u00e9s de deux conducteurs \u00e9lectriques dissemblables formant une jonction \u00e9lectrique.\u00a0Un thermocouple produit une tension d\u00e9pendant de la temp\u00e9rature en raison de l’effet thermo\u00e9lectrique, et cette tension peut \u00eatre interpr\u00e9t\u00e9e pour mesurer la temp\u00e9rature.<\/span><\/p>\n

Par exemple, le constantan est l’\u00e9l\u00e9ment n\u00e9gatif du thermocouple de type J, le fer \u00e9tant le positif.\u00a0Les thermocouples de type J sont utilis\u00e9s dans les applications de traitement thermique.\u00a0De plus, Constantan est l’\u00e9l\u00e9ment n\u00e9gatif du thermocouple de type T avec le cuivre le positif.\u00a0Ces thermocouples sont utilis\u00e9s \u00e0 des temp\u00e9ratures cryog\u00e9niques.<\/span><\/p>\n

Dans les r\u00e9acteurs nucl\u00e9aires, les thermocouples sont positionn\u00e9s \u00e0 des emplacements pr\u00e9s\u00e9lectionn\u00e9s pour mesurer la temp\u00e9rature de sortie du liquide de refroidissement de l’assemblage combustible pour une utilisation dans la surveillance du partage de puissance radiale du c\u0153ur et du liquide de refroidissement.\u00a0Mais dans ce cas, les thermocouples doivent r\u00e9sister \u00e0 l’irradiation neutronique, donc le type E (chromel-alumel) ou d’autres thermocouples sp\u00e9ciaux sont pr\u00e9f\u00e9r\u00e9s.<\/span><\/p>\n

\"Constantan\"<\/a><\/p>\n

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<\/span>R\u00e9f\u00e9rences :<\/div>
Science des mat\u00e9riaux:<\/div><\/div><\/div><\/span><\/p>\n

D\u00e9partement am\u00e9ricain de l’\u00e9nergie, science des mat\u00e9riaux.\u00a0DOE Fundamentals Handbook, Volume 1 and 2. Janvier 1993.<\/span>
\nUS Department of Energy, Material Science.\u00a0DOE Fundamentals Handbook, Volume 2 et 2. Janvier 1993.<\/span>
\nWilliam 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>
\nEn 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>
\nGaskell, David R. (1995).\u00a0Introduction \u00e0 la thermodynamique des mat\u00e9riaux (4e \u00e9d.).\u00a0\u00c9ditions Taylor et Francis.\u00a0ISBN 978-1-56032-992-3.<\/span>
\nGonz\u00e1lez-Vi\u00f1as, W. & Mancini, HL (2004).\u00a0Une introduction \u00e0 la science des mat\u00e9riaux.\u00a0Presse universitaire de Princeton.\u00a0ISBN 978-0-691-07097-1.<\/span>
\nAshby, 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>
\nJR Lamarsh, AJ Baratta, Introduction au g\u00e9nie nucl\u00e9aire, 3e \u00e9d., Prentice-Hall, 2001, ISBN : 0-201-82498-1.<\/span>
\n<\/span><\/p><\/div><\/div>

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Voir ci-dessus:<\/span>
\nAlliages de nickel \u00a0\u00bb style=\u00a0\u00bbplat\u00a0\u00bb background=\u00a0\u00bb#ffffff\u00a0\u00bb color=\u00a0\u00bb#606060″ size=\u00a0\u00bb5″ radius=\u00a0\u00bb10″ icon=\u00a0\u00bbic\u00f4ne\u00a0: lien\u00a0\u00bb icon_color=\u00a0\u00bb#5d5d5d\u00a0\u00bb text_shadow=\u00a0\u00bb0px 0px 0px #000000″ ][\/su_button]<\/span><\/p><\/div><\/div>

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Nous esp\u00e9rons que cet article,\u00a0<\/span>Composition de Constantan – 45Ni-55Cu<\/span><\/strong>, vous aidera.\u00a0Si oui,\u00a0<\/span>donnez-nous un like<\/span><\/strong>\u00a0dans la barre lat\u00e9rale.\u00a0L’objectif principal de ce site Web est d’aider le public \u00e0 apprendre des informations int\u00e9ressantes et importantes sur les mat\u00e9riaux et leurs propri\u00e9t\u00e9s.<\/span><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Nous esp\u00e9rons que cet article,\u00a0Composition de Constantan – 45Ni-55Cu, vous aidera.\u00a0Si oui,\u00a0donnez-nous un like\u00a0dans la barre lat\u00e9rale.\u00a0L’objectif principal de ce site Web est d’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":"\nQuelle est la composition du constantan - 45Ni-55Cu - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles<\/title>\n<meta name=\"description\" content=\"Composition du Constantan \u2013 45Ni-55Cu. 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