Comparison of the microwave and conventional sintering of Li2TiO3 ceramic pebbles

被引：20
|
作者：
Yang, Mao [1 ,2 ,3 ]
Wang, Hailiang [1 ,2 ]
Chen, Ruichong [1 ,2 ]
Gong, Yichao [4 ]
Huang, Zhangyi [1 ,2 ]
Ran, Guangming [3 ]
Chen, Xiaojun [3 ]
Lu, Tiecheng [1 ,2 ]
Xiao, Chengjian [3 ]
机构：
[1] Sichuan Univ, Coll Phys Sci & Technol, Chengdu 610064, Peoples R China
[2] Sichuan Univ, Minist Educ, Key Lab Radiat Phys & Technol, Chengdu 610064, Peoples R China
[3] China Acad Engn Phys, Inst Nucl Phys & Chem, Box 919-214, Mianyang 621900, Peoples R China
[4] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Shaanxi, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2018年 / 44卷 / 16期
关键词：
Tritium breeder; Li2TiO3; pebbles; Microwave sintering; Hydrothermal method; LITHIUM TITANATE; GRAIN-SIZE; FABRICATION; MICROSTRUCTURE; STRENGTH; POROSITY;
D O I：
10.1016/j.ceramint.2018.07.219
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：
Microwave sintering was employed in the fabrication of Li2TiO3 ceramic pebbles using the powders synthesized via hydrothermal method. The as-prepared Li2TiO3 powders exhibited high reactivity with an average particle size as small as 40 nm. A comparative study between the microwave and conventional sintering behavior of Li2TiO3 pebbles was systematically investigated. The microstructure and density analyses showed that the presence of microwaves accelerated the densification and grain growth, thus decreasing the sintering temperature. Besides, an accelerated phase transformation from alpha-Li2TiO3 to beta-Li2TiO3 was observed in microwave processing. The Li2TiO3 ceramic pebbles obtained by microwave sintering exhibited high density, good mechanical property and uniform microstructure, which might hold good potential as tritium breeding materials for blankets. The results showed that the microwave sintering was a promising process for the fabrication of Li2TiO3 pebbles.
引用
收藏
页码：19672 / 19677
页数：6
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