四チタン酸カリウム（Ｋ?S２?TＴｉ?S４?TＯ?S９?T）繊維のフラックス成長反応

• 藤木 良規

  無機材質研究所

• 太田 進啓

  大塚化学薬品 (株)

書誌事項

タイトル別名

• The Flux Growth Reactions of Potassium Tetratitanate (K₂Ti₄O₉) Fibers
• シチタンサン カリウム K2Ti4O9 センイ ノ フラックス セイチョウ ハ

抄録

The optimum growth conditions of long K₂Ti₄O₉ fibers were investigated by the slow cooling method in a temperature field from 1200°C to 850°C using a K₂MoO₄ flux. When starting fiber compositions are represented by the formula (K₂O)_x⋅TiO₂, the formation of only K₂Ti₄O₉ phase was depended upon starting composition and reaction temperature, and the fibers were synthesized at the temperature of 1150°C or below with x=1/4, at the temperature of 1200°C or below with x=1/3. The best growth of long fibers was carried out by slow cooling from 1150°C with x=1/4.<br>Flux reactions were analyzed by DTA, TG and quenching method employed Pt crucibles, and a new flux growth reaction of the K₂Ti₄O₉ fibers was found. The reaction was abided by a dissociation-association reaction, 2K₂Ti₆O₁₃(s)+K₂O(l)→←3K₂Ti₄O₉(s), rather than the general dissolution-recrystallization reaction. Although the dissociation reaction of K₂Ti₄O₉ phase is predominant at the higher temperatures, the association reaction of K₂Ti₆O₁₃ with K₂O becomes predominant at the lower temperatures. When the association reaction was promoted by slow cooling from the higher temperatures, the growth of K₂Ti₄O₉ fibers was markedly performed.

収録刊行物

• 窯業協會誌

  窯業協會誌 88 (1015), 111-116, 1980

  公益社団法人 日本セラミックス協会

キーワード

• Potassium tetratitanate fiber
• Flux reaction
• Dissociation-association reaction

詳細情報

• CRID: 1390282680194476288
• NII論文ID: 110002310748
• NII書誌ID: AN00245650
• DOI: 10.2109/jcersj1950.88.1015_111
• ISSN: 18842127
• ISSN: 00090255
• NDL書誌ID: 2175785
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I2175785
• Web Site: http://www.jstage.jst.go.jp/article/jcersj1950/88/1015/88_1015_111/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可