Zr surface diffusion in tetragonal yttria stabilized zirconia

被引：16

作者：

Akash ^{[1
]}

Mayo, MJ ^{[1
]}

机构：

[1] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 2000年 / 35卷 / 02期

关键词：

D O I：

10.1023/A:1004771418188

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The value for surface diffusivity of Zr tetragonal ZrO(2)-3mol % Y(2)O(3) has been calculated from measurements of surface area reduction and pore growth in powder compacts during sintering. The surface diffusivity thereby obtained can be described by D(s, Zr+4) = 5.52 x 10(5) exp[-531(kJ mol(-1))/RT] m(2)/s, which is in reasonable agreement with values calculated by prior researchers from direct TEM observation of neck growth between touching particles. (C) 2000 Kluwer Academic Publishers.

引用

页码：437 / 442

页数：6

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