铋掺杂钛酸锶陶瓷晶界纳米颗粒的平衡形状分析
邢娟娟1,2, 顾辉1

Analysis on Equilibrium Shape of Nano-precipitations at Grain Boundaries in Bismuth Doped Strontium Titanate Ceramics
XING Juan-Juan1,2, GU Hui1
图4 a c晶界Bi颗粒的TEM 照片小图为两侧晶粒相应的傅立叶变换花样; Bi颗粒形状的 #cod#x003be; -矢量构建示意图b d
Fig. 4 a c TEM images of nano-precipitates at grain boundaries Insets are the corresponding fast Fourier transformation patterns of the grains on both sides of the grain boundaries; b d The shape of the nano-precipitation can be understood in terms of #cod#x003be; -vector construction as an intersection between the two Wulff shapes. The distance between the two Wulff centers is equal to the grain boundary energy