© 晶粒尺寸导致的宽化 晶粒尺寸:2~300nm Scherrer公式: max 2 D= 白B= Kisusjul Bcos0 D cos 0 D=grain diameter 20 20320 B=peak width in radians at FWHM after 20 correcting for instrumental broadening k=0.9 to 1.0 depending upon grain shape Actually,k:0.89~1.39 材料科学与工程学院 8 School of Materials Science and Engineering材料科学与工程学院 School of Materials Science and Engineering 晶粒尺寸导致的宽化 • 晶粒尺寸:2~300nm • Scherrer公式: 8 Actually, k: 0.89~1.39