摘要
陶瓷颗粒易在流延成形过程中产生取向性排列,使得流延坯体本身在烧结后容易出现收缩各向异性。建立了三维椭球模型来定量研究陶瓷颗粒的排列取向性,发现在流延坯体中颗粒排列取向明显,且颗粒形态比与三维形状因子间呈指数函数关系,颗粒的各向异性率和三维形状因子之间呈线性关系。
Anisotropic sintering shrinkage in ceramics tape casting is as a result of oriented particels in the shear field. Quantitative analysis on oriented particles based on the three-dimensional spheroidal model. The results show that, particleisr aspect ratio is a simple exponential function of three-dimensional shape factor, and the linear relation between particlers aspect ratio and three-dimensional shape faetor is good.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2012年第4期136-138,共3页
Materials Reports
基金
华中科技大学国家重大基础研究项目(61362)
关键词
陶瓷颗粒
流延成形
三维模型
ceramic particles, tape casting, three-dimensional model
