Low temperature sintering and color of a new compound Sn1.24Ti1.94O3.66(OH)1.50F1.42

Yahong Xie, Shu Yin, Hisanori Yamane, Takatoshi Hashimoto, Tsugio Sato

Research output: Contribution to journalArticle

12 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1703-1708
Number of pages6
JournalSolid State Sciences
Volume11
Issue number9
DOIs
Publication statusPublished - 2009 Sep 1

Keywords

  • Hot-pressing
  • Inorganic pigments
  • Microwave processing
  • Nanocomposites

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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