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Solution Callister 7- ... Ciência dos Materiais - callister7e sm ch03 23, Manuais, Projetos, Pesquisas de Física

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Tipologia: Manuais, Projetos, Pesquisas

2015

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Baixe Solution Callister 7- ... Ciência dos Materiais - callister7e sm ch03 23 e outras Manuais, Projetos, Pesquisas em PDF para Física, somente na Docsity! 3-26 3.23 Here we are asked list point coordinates for both sodium and chlorine ions for a unit cell of the sodium chloride crystal structure, which is shown in Figure 12.2. In Figure 12.2, the chlorine ions are situated at all corners and face-centered positions. Therefore, point coordinates for these ions are the same as for FCC, as presented in the previous problem—that is, 000, 100, 110, 010, 001, 101, 111, 011, 1 2 1 2 0, 1 2 1 2 1, 1 1 2 1 2 , 0 1 2 1 2 , 1 2 0 1 2 , and 1 2 1 1 2 . Furthermore, the sodium ions are situated at the centers of all unit cell edges, and, in addition, at the unit cell center. For the bottom face of the unit cell, the point coordinates are as follows: 1 2 00, 1 1 2 0, 1 2 10, 0 1 2 0. While, for the horizontal plane that passes through the center of the unit cell (which includes the ion at the unit cell center), the coordinates are 00 1 2 , 1 0 1 2 , 1 2 1 2 1 2 , 1 1 1 2 , and 01 1 2 . And for the four ions on the top face 1 2 01, 1 1 2 1, 1 2 1 1, and 0 1 2 1. Excerpts from this work may be reproduced by instructors for distribution on a not-for-profit basis for testing or instructional purposes only to students enrolled in courses for which the textbook has been adopted. Any other reproduction or translation of this work beyond that permitted by Sections 107 or 108 of the 1976 United States Copyright Act without the permission of the copyright owner is unlawful.
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