1.請問鑽石結構的原子堆積因子(A.P.F)如何計算?
2. a = ? R
2006-03-02 04:27:43 · 2 個解答 · 發問者 eddie 1 in 科學 ➔ 其他:科學
Diamond Structure 如下圖:原子佔(0,0,0 ),( 1,0,0) ... 與 n(1/4,1/4,1/4) 倍數的位置.ao = 3.56 A, 所以 bond length d = 31/2 ao /4 = 1.54 A 即原子半徑 r = 0.77A單位晶格有8個碳原子, ( 8 x 4/3 x π x r3 )/( ao3 ) = APF解得 APF = 0.34
圖片參考:http://newton.ex.ac.uk/research/qsystems/people/sque/diamond/diamond-fcc-cell.gif
2006-03-02 10:46:14 補充:
3^1/2 a = 8 r
2006-03-01 13:44:29 · answer #1 · answered by emcsolution 7 · 0⤊ 0⤋
到下面的網址看看吧
▶▶http://qaz331.pixnet.net/blog
2014-11-06 15:55:17 · answer #2 · answered by Anonymous · 0⤊ 0⤋