作者weakhsuan (科科)
看板NTUMSE-98
標題[物冶] 第二次小考詳解
時間Fri Oct 1 21:16:41 2010
Physical Metallurgy Test 2 (Sep. 30, 2010)
系級__________ 學號__________ 姓名__________
1. Give the coordinates of A-center, B-center and C-center, respectively for
a Cubic-F lattice. (10%)
A-center: 0, 1/2, 1/2
B-center: 1/2, 0, 1/2
C-center: 1/2, 1/2, 0
_ _
2. (a) Give the interplanar spacing of (2 1 1 0) (20%)
_
(b) Give the interplanar spacing of (1 0 1 0)
(a) a/2
(b) (a/2)*√3
3. Give the shortest lattice translation vector for HCP metal crystals. (10%)
_ _
<2 1 1 0>/3
_
4. Calculate and determine the zone axis for (0 0 0 1) and (1 0 1 0) planes.
(10%)
_ _
[1 2 1 0]
5. For HCP crystals, Miller-Bravais indices (h k i l) represent a plane making
intercept a/h, b/k, d/i and c/l on the x,y,u and z axes respectively, where
the lattice constants a=b=d. Prove that h + k = -i is a
necessary result.
自己看老師上課筆記懶得打了
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