结构陶瓷及其超塑性 II. 陶瓷材料的超塑性

金属学报, 2009, 45(1): 6-17.

结构陶瓷及其超塑性 II. 陶瓷材料的超塑性

宋玉泉刘颖徐进管晓方

吉林大学超塑性与塑性研究所

长春 130025

Superplastic and Plastic Research Institute

Jilin University

Changchun 130025

基金项目: 985工程&rdquo 国家自然科学基金项目50375064和吉林大学&ldquo 项目资助

关键词：结构陶瓷 , superplasticity , macroscopic law , microscopic mechanism , advanced research , mechanical measurement

STRUCTURAL CERAMICS AND THEIR SUPERPLASTICITY II. Superplasticity of Structural Ceramics

SONG Yuquan LIU Ying XU Jin GUAN Xiaofang

Keywords： structural ceramics , 超塑性 , 宏观规律 , 微观机理 , 研究进展 , 力学测量

得到广泛应用的结构陶瓷的另一特点是塑性差, 难以进行塑性加工. 因此对其超塑性的研究便成为国内外竞相研发的热点之一. 针对Y₂O₃部分稳定四方ZrO₂(Y-TZP), Al₂O₃, Si₃N₄和SiC等结构陶瓷, 分别就其拉伸(压缩)宏观力学实验、微观物理机理、晶体结构和添加物对超塑变形的影响, 以及对其进行的力学测量结果和研究进展进行了综述.

Other character of the structural ceramics is very low plasticity, resulting in especially hard to form complicate and large--scale parts. The research of the superplasticity of structural ceramics is one of the hotspots in the world. As examples, Y-TZP, Al₂O₃, Si₃N₄ and SiC were analyzed and the content emphasizes on tensile (compress) mechanical tests, microscopic mechanism and effects of crystal structure and additions on structural ceramics' superplastic deforming. In addition, its mechanical measurements and advanced research were also overviewed.

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