鋳込み成形によるＺｒＯ２‐ＷＣ複合体の作製とその機械的性質

• 塩野 剛司

  京都工芸繊維大学工芸学部物質工学科

• 福家 章利

  京都工芸繊維大学工芸学部物質工学科

書誌事項

タイトル別名

• Preparation and Mechanical Properties of ZrO2-WC Composites by Slip-casting Technique.
• イコミ セイケイ ニヨル ZrO2 WC フクゴウタイ ノ サクセイ ト ソノ

抄録

In order to study the applicability of a slip-casting technique to preparation of ceramic composites consisting of powders with different specific gravity, the technique was applied to ZrO₂-WC system. During casting process, ZrO₂ and WC were afraid to separate due to the difference in their specific gravity, that is, 6.07 for ZrO₂ and 15.6 for WC.. For preparing fluidal and thick slurry, the optimum amounts of water and dispersant were determined on the basis of the viscosity and the density of green compacts. The optimum amounts of water and dispersant were 60vol% and 0.35mass%, respectively. The dispersibility was estimated by an EDX analysis and SEM observation. WC powders were found to disperse uniformly in ZrO₂ matrix, when the thick slurry consisting of raw powders was cast. The prepared compacts were sintered at a temperature from 1400°C to 1700°C. The density and mechanical properties of composites were improved with an increase in sintering temperature. The bending strength and fracture toughness of the composites sintered at 1700°C were 820MPa and 7.4MPa⋅m_1/2, respectively. The improvement of the boundary between ZrO₂ and WC was guessed to make their properties enhanced further.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 43 (7), 885-889, 1996

  一般社団法人 粉体粉末冶金協会

キーワード

• slip-casting
• composites
• ZrO<SUB>2</SUB>
• WC
• Young's modulus
• strength

詳細情報

• CRID: 1390001206307329152
• NII論文ID: 10002012624
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.43.885
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 4004689
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4004689
• 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