低温环境下结构陶瓷的相变、断裂机理与性能的研究进展

薛伟江, 谢志鹏

Research Progress on the Transformation, Fracture Mechanism and Properties of Structural Ceramics at Cryogenic Temperatures

XUE Wei-Jiang, XIE Zhi-Peng

图7 不同温度下Si 3 N 4 陶瓷中裂纹的扩展路径 [ 45 ]
Fig. 7 Crack paths on the polished and plasma-etched surface in Si 3 N 4 at 293 K a and c and 77 K b and d [ 45 ]