利用维氏和玻氏压头表征半导体材料断裂韧性1)
刘明, 侯冬杨, 高诚辉

STUDY ON FRACTURE TOUGHNESS OF SEMICONDUCTOR MATERIAL USING VICKERS AND BERKOVICH INDENTERS1)
Liu Ming, Hou Dongyang, Gao Chenghui
图4 样品的$c/a$值及巴氏和中位裂纹模型
Fig.4 $c/a$ of samples and model of Palmqvist and Median crack