Low temperature sintering and color of a new compound Sn1.24Ti1.94O3.66(OH)1.50F1.42 |
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| Authors: | Yahong Xie Shu Yin Hisanori Yamane Takatoshi Hashimoto Tsugio Sato |
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| Affiliation: | aInstitute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1,Katahira, Aoba-ku, Sendai 980-8577, Japan;bNEC Tokin Corporation, Koriyama, Taihaku-ku, Sendai 980-8510, Japan |
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| Abstract: | Nanopowder of a new tin(II) titanium(IV) oxide hydroxide fluoride, Sn1.24Ti1.94O3.66(OH)1.50F1.42 with the pyrochlore-type structure (cubic a = 10.3777(7) Å, space group Fd-3m) was prepared by using a microwave-assisted solvothermal reaction. The grain size of the nanopowder was 20–30 nm in diameter. Sn1.24Ti1.94O3.66(OH)1.50F1.42 decomposed above 300 °C, but could be sintered to relative density greater than 99% by a hydrothermal hot-pressing (HHP) method at 270 °C and 80 MPa for 4 h. The synthesized powder and solidified body obtained using HHP showed significantly different color, probably due to the difference in water content. |
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| Keywords: | Inorganic pigments Microwave processing Hot-pressing Nanocomposites |
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