Fabrication of transparent MgAl2O4 spinel polycrystal by spark plasma sintering processing

被引：147

作者：

Morita, K. ^{[1
]}

Kim, B. -N. ^{[1
]}

Hiraga, K. ^{[1
]}

Yoshida, H. ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

SCRIPTA MATERIALIA | 2008年 / 58卷 / 12期

关键词：

powder consolidation; spark plasma sintering; ceramics; optical transmission; spinel;

D O I：

10.1016/j.scriptamat.2008.02.008

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Transparent spinel can be fabricated without any sintering aids by spark plasma sintering (SPS) processing for only a 20 min soak at 1300 degrees C. For heating rates <10 degrees C min(-1), the spinel exhibits an in-line transmission of 47% for a visible-wavelength of 550 nm and a fracture strength of similar to 500 MPa. By means of low heating rate SPS processing, high transmission and strength can be attained mainly by reducing the residual pores to <0.5%. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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页码：1114 / 1117

页数：4

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