Porosity and Oxide Layer Dependence of Thermal Shock Behavior of Porous Silicon Nitride Ceramics

Xuefeng Lu¹, Yin Wei¹, Hongjie Wang¹, Jiangbo Wen¹, Jun Zhou², Jinpeng Fan²

Fig. 1 SEM images of porous Si3N4 ceramics with the porosities of 32% a, 37% b, and 42% c.1218 X. Lu et al.: J. Mater. Sci. Technol., 2014, 3012, 1217e1222