Crystallographic Texture of Structural Ceramics

这项提案是对之前的国家科学基金会拨款DMR-8819186的续签提案。它计划执行三项主要任务。一种是测量由于多晶结构陶瓷，如Al_2O_3、ZrO_2和碱金属卤化物的变形而产生的择优结晶取向(织构)。相关工作涉及Si3N4和陶瓷基复合材料。第二个任务是用多晶变形机制来解释织构。第三个任务是演示作为纹理结果的各向异性属性。这项拟议的研究是PI在建立陶瓷材料织构的定量描述方面所做努力的继续。它将提供关于多晶陶瓷材料的机械变形的信息。

This proposal is a renewal proposal to a prior NSF grant, DMR-8819186. It plans to perform three major tasks. One is the measurement of preferred crystalline orientation (texture) resulting from the deformation of polycrystalline structural ceramics, such as Al2O3, ZrO2, and alkali halides. Related work involves Si3N4, and ceramic matrix composites. Second task is to use polycrystal deformation mechanisms to explain the textures. The third task is to demonstrate the anisotropic properties as the results of the texture. %%%% This proposed research is a continuation of the PI's efforts in establishing quantitative description of textures in ceramic materials. It will provide information about the mechanical deformation of polycrystalline ceramic materials.