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.
引用
收藏
页码：139 / 142
页数：4
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