EMCH 371_Tu_ Lecture 6_Ch3

EMCH 371_Tu_ Lecture 6_Ch3 - Chapter 3 Crystalline...

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Issues to address for the lecture Family of directions and planes? Angle between directions? Linear and planar density? How to use X-ray diffraction to study crystalline structures? Chapter 3 Crystalline Structure - Continued
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Example: <111> = Figure 3-25, Shackelford Body diagonals ] 111 [ ] 11 1 [ ] 1 1 1 [ ] 1 11 [ ] 1 1 1 [ ] 1 1 1 [ ] 1 1 1 [ ] 1 1 1 [ For cubic unit cells, the individual members of a family can be generated by taking all of the permutations of the symbols h, k, and l, using both positive and negative integers. Brain check: Does [101] belong to <210> family of directions?
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Example: {100} = (100), (010), (001), (100), (010), (001) Figure 3-28, Shackelford Faces of a unit cell For cubic unit cells, the individual members of a family can be generated by taking all of the permutations of the symbols h, k, and l, using both positive and negative integers. Brain check: Does belong to {210} family of planes? ) 2 1 0 (
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For a cubic system, the angle between two directions [uvw] and [u'v'w'] is given by ( 29 ( 29 ( 29 2 2 2 2 2 2 ' ' ' ' ' ' cos w v u w v u ww vv uu + + + + + + = δ Angle Between Two Directions
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This note was uploaded on 10/03/2011 for the course EMCH 371 taught by Professor Dai-hattrick during the Spring '11 term at South Carolina.

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EMCH 371_Tu_ Lecture 6_Ch3 - Chapter 3 Crystalline...

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