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用 SEM原位拉伸技术研究了 Ti- 49at% Al PST晶体的断裂过程。研究表明 :裂纹萌发和扩展路径强烈依赖于 PST晶体的片层取向 ;不同取向 PST晶体具有不同的断裂机制及断口形貌
The fracture process of Ti-49at% Al PST crystal was studied by SEM in-situ tensile technique. The results show that the crack growth and propagation path strongly depend on the orientation of the PST crystal. Different orientations of PST crystals have different fracture mechanisms and fracture morphology