Highly Transparent Alumina Spark Plasma Sintered from Common-Grade Commercial Powder: The Effect of Powder Treatment

被引：27

作者：

Jin, Xihai ^{[1
]}

Gao, Lian ^{[1
]}

Sun, Jing ^{[1
]}

机构：

[1] Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2010年 / 93卷 / 05期

基金：

中国国家自然科学基金;

关键词：

AQUEOUS HYDROFLUORIC-ACID; TRANSLUCENT ALUMINA; MICROSTRUCTURE; CORROSION; STRENGTH; CERAMICS;

D O I：

10.1111/j.1551-2916.2009.03544.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Transparent alumina were tentatively prepared by spark plasma sintering, using aggregated submicrometer-sized commercial Al(2)O(3) powder. It is found that the pretreatment of the powder in hydrofluoric acid significantly reduces the aggregate size of the powder, suppresses the grain growth, and improves the microstructure homogeneity of the sintered ceramics. The sample sintered from the pretreated powder is highly transparent, while the sample sintered from the untreated powder is translucent at most. The fundamental reasons for this are investigated.

引用

页码：1232 / 1236

页数：5

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