期刊
JOURNAL OF MATERIALS SCIENCE
卷 44, 期 18, 页码 4834-4839出版社
SPRINGER
DOI: 10.1007/s10853-009-3737-8
关键词
-
资金
- Ministry of Education, Culture, Sports, Science and Technology, Scientific Research
- JSPS
Ternary oxides containing Sn2+ are rare and difficult to prepare using solid state reaction due to disproportionation of Sn2+ at high temperature. In this paper, nanoparticles of barium titanate doped with different amounts of Sn2+ consisting of single phase perovskite structure were successfully synthesized for the first time by using a microwave-assisted solvothermal reaction. The particle sizes were about 20-40 nm in diameter and increased with increasing the amount of doped tin. Solidified ceramic bodies were obtained using a spark plasma sintering method under argon atmosphere avoiding the disproportionation and oxidation of Sn2+ in the air. The grain size and dielectric constant of the sintered body decreased with increasing the amount of doped tin.
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