Two-step sintering of titania nanoceramics assisted by anatase-to-rutile phase transformation

被引：50

作者：

Mazaheri, Mehdi ^{[1
]}

Hesabi, Z. Razavi ^{[1
]}

Sadrnezhaad, S. K. ^{[1
]}

机构：

[1] MERC, Tehran, Iran

来源：

SCRIPTA MATERIALIA | 2008年 / 59卷 / 02期

关键词：

TiO2; phase transformation; two-step sintering; grain growth;

D O I：

10.1016/j.scriptamat.2008.02.041

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A remarkable suppression of grain growth was achieved by taking advantage of the anatase-to-rutile phase transformation during the final stage of a two-step sintering process. The minimum grain size obtainable via two-step sintering of a sample with full-rutile (98%) phase at the end of the first sintering step was around similar to 250 nm, whereas the anatase-to-rutile transformation at the end of the second step facilitated a reduction in grain size to around 100 nm. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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收藏

页码：139 / 142

页数：4

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