常压固相烧结碳化硅陶瓷的表面裂纹及其对材料强度的影响
杨晓, 刘学建, 黄政仁

Surface Cracks of Solid-phase-sintered Silicon Carbide Ceramics and Their Influeces on Material Strength
YANG Xiao, LIU Xue-Jian, HUANG Zheng-Ren
Fig. 6 The relationship between flexure strength #cod#x003c3; and inclined angles #cod#x003b8; of SSiC ceramic While the artificial Knoop crack is not large enough after 1 N or 2 N indentation load, Knoop crack deflection and intrinsic defect propagation happen randomly since the intrinsic defects randomly scatter; and the randomness makes the flexure strength irregularly influenced by the inclined angle as shown in Fig. 4b.