Spark-plasma-sintering (SPS) of nanostructured and submicron titanium oxide powders

被引：59

作者：

Angerer, P

Yu, LG

Khor, KA ^{[1
]}

Krumpel, G

机构：

[1] ARC Seibersdorf Res, A-2444 Seibersdorf, Austria

[2] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 381卷 / 1-2期

关键词：

nanocrystalline; spark-plasma-sintering; titanium oxide powders; grain growth; X-dray diffraction;

D O I：

10.1016/j.msea.2004.02.009

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Spark-plasma-sintering (SPS) consolidation of submicron and nanostructured titanium oxide (TiO2) powders was performed between 800 and 1000degreesC for 1 min. The results were compared with conventional sintering using electrical resistant furnace that was performed between 600 and 1000degreesC for 120 min. The compacted samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). This investigation clearly shows that the SPS method is capable of obtaining samples with high densities and corresponding fine grain-size from nanostructured raw TiO2 powder. Remarkable difference in the sintering techniques was observed in samples with >95% theoretical density where the relative grain growth quotient d/d(o) for the 40 nm powder was similar to3 when SPS was employed while the value obtained for conventional sintering was similar to26. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：16 / 19

页数：4

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