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采用破坏力学中的双扭矩实验法,研究了玻璃陶瓷、云母陶瓷、氧化铝陶瓷、氧化铝陶瓷材料分别在大气、水环境中的静负荷和循环负荷下的裂纹扩展特性,阐明了水环境和循环负荷对材料裂纹扩展特性（K1-V特性）的影响. 所研究的材料在水环境下的裂纹扩展速度均加快,但玻璃陶瓷和氧化锆陶瓷材料更为明显. 在静负荷下这几种材料的裂纹扩展阻力由小到大的次序为:玻璃陶瓷（N-0）,玻璃陶瓷（N-11）,云母陶瓷,氧化错陶瓷和氧化铝陶瓷,对于氧化铝和氧化锆陶瓷材料在循环负荷下的裂纹扩展速度均明显加快.
The crack propagation characteristics of glass ceramics, mica ceramics, alumina ceramics and alumina ceramics under static load and cyclic loading in air and water respectively were studied by the double torque experiment method in destructive mechanics. The effects of water environment and The effects of cyclic loading on the crack propagation properties (K1-V properties) of the materials are studied.The crack growth rate of the investigated materials in water environment is accelerated, but the glass ceramic and zirconia ceramic materials are more obvious. Under static load The order of the crack propagation resistance of the materials is as follows: glass ceramic (N-0), glass ceramic (N-11), mica ceramic, ceramic oxide and ceramic alumina, ceramic materials for alumina and zirconia in circulation The crack growth rate under load is obviously accelerated.