FACE-CENTERED CUBIC The relation between cube edge length a and the atomic radius R. v2a 4R a=2R√2 2a 原子堆砌密度 Atomic packing factor,APF Volume of atoms= x4 4 APF= 4413元R)=0.74 (4R/√2)3 PDF文件使用"pdfFactory Pro”试用版本创建www,fineprint.com.cn FACE-CENTERED CUBIC 原子堆砌密度 Atomic packing factor, APF 0.74 (4 / 2) 4(4/3 ) APF 3 3 = = R pR 4 3 4 3 Volume of atoms＝ pR ´ a 2a 2a = 4R a = 2R 2 The relation between cube edge length a and the atomic radius R: PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn