Effects of gallia additions on sintering behavior of Ce0.8Gd0.2O1.9 ceramics prepared by commercial powders

被引：0

作者：

Joo-Sin Lee

Kwang-Hoon Choi

Bong-Ki Ryu

Byoung-Chul Shin

Il-Soo Kim

机构：

[1] Kyungsung University,Department of Advanced Materials Engineering

[2] Pusan National University,School of Materials Science and Engineering

[3] Dongeui University,Department of Information Materials Engineering

来源：

Journal of Materials Science | 2005年 / 40卷

关键词：

Polymer; Grain Size; Gallia; Doping Level; Ga2O3;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The densification behavior and grain growth of Ce0.8Gd0.2O1.9 ceramics were investigated with the gallia concentration ranging from 0 to 10 mol%. Both the sintered density and grain size were found to increase rapidly up to 0.5 mol% Ga2O3, and then to decrease with further additions. Under the same sintering conditions, the samples with 3 mol% Ga2O3 and less exhibited a higher sintered density, as compared to the one without Ga2O3 addition. However, a pinning effect on grain growth was found at ≥ 2 mol% Ga2O3. In the dopant content range of 0 to 10 mol%, 0.5 mol% Ga2O3 was the optimum doping level in promoting densification and grain growth of commercially available powders of Ce0.8Gd0.2O1.9.

引用

页码：1153 / 1158

页数：5