Yb3+ doped Lu2O3 transparent ceramics by spark plasma sintering

被引：21

作者：

Prakasam, Mythili ^{[1
]}

Viraphong, Oudamsack ^{[1
]}

Michau, Dominique ^{[1
]}

Veber, Philippe ^{[1
]}

Velazquez, Matias ^{[1
]}

Shimamura, Kiyoshi ^{[2
]}

Largeteau, Alain ^{[1
]}

机构：

[1] Inst Chim Mat Condensee Bordeaux CNRS, F-33608 Bordeaux, France

[2] NIMS, Tsukuba, Ibaraki 3050044, Japan

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 02期

关键词：

Grain growth; Sintering; Grain size; Grain boundaries; HIGH-MELTING SESQUIOXIDES; THIN-DISK LASER; COMBUSTION SYNTHESIS; GROWTH; DENSIFICATION; MICROSTRUCTURE; YB-LU2O3; POWDERS;

D O I：

10.1016/j.ceramint.2012.07.065

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 ceramics of 10% Yb doped Lu2O3 was fabricated by spark plasma sintering. The operating vital parameters in yielding transparency and mutual effects of sintering, pressure, dwell time, heating rate and annealing temperature on microstructure have been investigated. Fully compacted specimens were obtained at 1250 degrees C and the average grain size increased from few nm up to 5 mu m until 1700 degrees C, above which abnormal grain growth was witnessed. The post-annealing of sintered ceramics at 1200 degrees C removes discoloration and improves transparency. The ceramics prepared at 1700 degrees C with dwell time of 5 min and heating rate at 50 degrees C/min shows the maximum transmittance with a thickness of 2 mm of 55% at a wavelength of 2 mu m. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1307 / 1313

页数：7

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