ZrO₂強靱化ムライトセラミックスの焼結と微構造

• 志賀 弘

  秩父セメント (株) ファインセラミックス本部

• ISMAIL Mohamed G. M. U.

  Fine Ceramics Research & Development Div., Chichibu Cement Co., Ltd.

• 片山 恵一

  秩父セメント (株) ファインセラミックス本部

書誌事項

タイトル別名

• Sintering of ZrO₂ Toughened Mullite Ceramics and Its Microstructure
• ZrO2 キョウジンカ ムライト セラミックス ノ ショウケツ ト ビ コウゾ

抄録

Mullite/ZrO₂ composite ceramics were fabricated from sol-gel derived powders. The effects of ZrO₂ content and firing temperature on the densification and microstructure development have been investigated by means of SEM, TEM and XRD. It was clarified that the 5 to 25vol% addition of ZrO₂ to mullite improved the sinter-ability. The effect is more striking in the composites containing 10 or 15vol% ZrO₂. The growth of mullite grains was inhibited by dispersing ZrO₂ particles. The effects were, especially, most predominant in the composite containing 15vol% ZrO₂. However, in composites fired at 1650°C and above, remarkable grain growth was observed, and needle-like mullite grains having Al-rich composition appeared. These results may be ascribed to the coalescence of fine ZrO₂ crystals.

収録刊行物

• Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)

  Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 99 (1153), 798-802, 1991

  公益社団法人 日本セラミックス協会

キーワード

• Mullite
• Zirconia
• Sintering
• Microstructure
• Grain growth

詳細情報

• CRID: 1390282680253326848
• NII論文ID: 110002291059
• NII書誌ID: AN10040326
• DOI: 10.2109/jcersj.99.798
• ISSN: 18821022
• ISSN: 09145400
• NDL書誌ID: 3731738
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3731738
• Web Site: http://www.jstage.jst.go.jp/article/jcersj1988/99/1153/99_1153_798/_pdf
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