{"id":117067,"date":"2022-05-31T06:29:45","date_gmt":"2022-05-31T05:29:45","guid":{"rendered":"https:\/\/material-properties.org\/quest-ce-que-le-cubique-centre-sur-le-corps-structure-bcc-definition\/"},"modified":"2022-05-31T06:29:45","modified_gmt":"2022-05-31T05:29:45","slug":"quest-ce-que-le-cubique-centre-sur-le-corps-structure-bcc-definition","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/quest-ce-que-le-cubique-centre-sur-le-corps-structure-bcc-definition\/","title":{"rendered":"Qu’est-ce que le cubique centr\u00e9 sur le corps – Structure bcc – D\u00e9finition"},"content":{"rendered":"

Dans un arrangement d’atomes cubiques centr\u00e9s sur le corps (bcc), la cellule unitaire se compose de huit atomes aux coins d’un cube et d’un atome au centre du corps du cube.\u00a0Dans un arrangement bcc, une cellule unitaire contient (8 atomes de coin \u00d7 \u215b) + (1 atome central \u00d7 1) = 2 atomes.<\/div><\/div><\/span><\/p>\n

<\/div><\/span><\/p>\n

\n
\"Cubique<\/a>
Source: D\u00e9partement am\u00e9ricain de l’\u00e9nergie, Science des mat\u00e9riaux. DOE Fundamentals Handbook, Volume 1 et 2. Janvier 1993.<\/span><\/figcaption><\/figure>\n

Certaines des propri\u00e9t\u00e9s des solides cristallins d\u00e9pendent de la\u00a0<\/span>structure cristalline<\/span><\/strong><\/a>\u00a0du mat\u00e9riau, de la mani\u00e8re dont les atomes, les ions ou les mol\u00e9cules sont dispos\u00e9s dans l’espace.\u00a0Un\u00a0<\/span>r\u00e9seau cristallin<\/span><\/strong>\u00a0est un motif r\u00e9p\u00e9titif de points math\u00e9matiques qui s’\u00e9tend dans tout l’espace.\u00a0Les forces de\u00a0<\/span>la liaison chimique<\/span><\/a>\u00a0provoquent cette r\u00e9p\u00e9tition.\u00a0C’est ce motif r\u00e9p\u00e9t\u00e9 qui contr\u00f4le les propri\u00e9t\u00e9s telles que\u00a0<\/span>la r\u00e9sistance<\/span><\/strong>, la\u00a0<\/span>ductilit\u00e9<\/span><\/strong>, la\u00a0<\/span>densit\u00e9<\/span><\/strong><\/a>, la\u00a0<\/span>conductivit\u00e9<\/span><\/strong><\/a>\u00a0(propri\u00e9t\u00e9 de conduire ou de transmettre la chaleur, l’\u00e9lectricit\u00e9, etc.) et\u00a0<\/span>la forme<\/span><\/strong>.\u00a0Il existe 14 types g\u00e9n\u00e9raux de ces mod\u00e8les connus sous le nom de\u00a0<\/span>r\u00e9seaux de Bravais<\/span><\/strong>.\u00a0Trois structures cristallines relativement simples se trouvent pour la plupart des m\u00e9taux courants.<\/span><\/p>\n

Cubique centr\u00e9 sur le corps<\/span><\/h2>\n

Dans un arrangement d’atomes cubique centr\u00e9 sur le corps (bcc), la cellule unitaire se compose de huit atomes aux coins d’un cube et d’un atome au centre du corps du cube.\u00a0Dans un arrangement bcc, une cellule unitaire contient (8 atomes de coin \u00d7 \u215b) + (1 atome central \u00d7 1) = 2 atomes.\u00a0Le garnissage est plus efficace (68%) que le simple cubique et la structure est courante pour les m\u00e9taux alcalins et les m\u00e9taux de transition pr\u00e9coce.\u00a0Les m\u00e9taux contenant des structures BCC comprennent la ferrite, le chrome, le vanadium, le molybd\u00e8ne et le tungst\u00e8ne.\u00a0Ces m\u00e9taux poss\u00e8dent une r\u00e9sistance \u00e9lev\u00e9e et une faible ductilit\u00e9.<\/span><\/p>\n

<\/span><\/p><\/div><\/div><\/span><\/p>\n

\n

<\/span>References :<\/div>
\u00a0<\/div><\/div><\/div><\/span>Science des mat\u00e9riaux:<\/span><\/strong><\/p>\n
    \n
  1. D\u00e9partement am\u00e9ricain de l’\u00e9nergie, science des mat\u00e9riaux.\u00a0DOE Fundamentals Handbook, Volume 1 et 2. Janvier 1993.<\/span><\/li>\n
  2. D\u00e9partement am\u00e9ricain de l’\u00e9nergie, science des mat\u00e9riaux.\u00a0DOE Fundamentals Handbook, Volume 2 et 2. Janvier 1993.<\/span><\/li>\n
  3. 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><\/li>\n
  4. 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><\/li>\n
  5. 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><\/li>\n
  6. Gonzalez-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><\/li>\n
  7. 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><\/li>\n
  8. JR Lamarsh, AJ Baratta, Introduction au g\u00e9nie nucl\u00e9aire, 3e \u00e9d., Prentice-Hall, 2001, ISBN : 0-201-82498-1.<\/span><\/li>\n<\/ol>\n

    <\/span><\/p><\/div><\/div>

    <\/div>
    <\/div>
    <\/div><\/div>
    \n

    Voir au dessus:<\/span><\/h2>\n

    Structure cristalline\"\" <\/span><\/a><\/span><\/p><\/div><\/div>

    <\/div><\/div><\/span><\/p>\n

    <\/div><\/span><\/p>\n

    Nous esp\u00e9rons que cet article,\u00a0<\/span>Body-centered Cubic – bcc Structure<\/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","protected":false},"excerpt":{"rendered":"

    Nous esp\u00e9rons que cet article,\u00a0Body-centered Cubic – bcc Structure, 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":"\nQu'est-ce que le cubique centr\u00e9 sur le corps - Structure bcc - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles<\/title>\n<meta name=\"description\" content=\"Dans un arrangement d'atomes cubique centr\u00e9 sur le corps (bcc), la cellule unitaire se compose de huit atomes aux coins d'un cube et d'un atome au centre du corps du cube. 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