ZrO₂分散MgO-Al₂O₃系セラミックスの作製とその性質 (第3報)

• 坪井 宏之

  岡山大学工学部精密応用化学科

• 吉松 英之

  岡山県工業技術センター

• 難波 徳郎

  岡山大学環境理工学部環境物質工学科

• 三浦 嘉也

  岡山大学環境理工学部環境物質工学科

書誌事項

タイトル別名

• Preparation and Properties of the ZrO₂-Dispersed MgO-Al₂O₃ Ceramics (Part 3)
• ZrO2 ブンサン MgO Al2O3ケイ セラミックス ノ サクセイ ト ソ
• Influence of MgO-Al₂O₃ Composition
• MgO/Al₂O₃組成比の影響

抄録

ZrO₂-dispersed MgO-Al₂O₃ ceramics with various MgO to Al₂O₃ compositional ratios were prepared from Mg(OH)₂ powder, α-Al₂O₃ powder and Zr-n-butoxide by calcining at 1000°C for 2h and sintering at 1600°C for 1h. The influence of the MgO-Al₂O₃ compositional ratio on the sinterability and mechanical properties was studied. Addition of 10vol% ZrO₂ improved the relative density of the sintered specimens containing 50 and 62.5mol% Al₂O₃. However, the addition was not effective at other compositional ratios. The bending strength was improved at composition containing more than 50mol% Al₂O₃, where the dispersed ZrO₂ particles were in the form of tetragonal phase. The bending strength increased with increase in Al₂O₃ content in the ZrO₂ dispersed specimens. The fracture toughness was improved for all specimens by ZrO₂ dispersion, especially, for the specimen in which MgO-Al₂O₃ component was in a single crystalline phase.

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) 105 (1223), 588-594, 1997

  公益社団法人 日本セラミックス協会

キーワード

• MgO-Al₂O₃ ceramics
• Phase transformation of ZrO₂
• ZrO₂ dispersion
• Sintering
• Bending strength
• Fracture toughness

詳細情報

• CRID: 1390001205278442240
• NII論文ID: 110002289213
• NII書誌ID: AN10040326
• DOI: 10.2109/jcersj.105.588
• ISSN: 18821022
• ISSN: 09145400
• NDL書誌ID: 4248936
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4248936
• Web Site: http://www.jstage.jst.go.jp/article/jcersj1988/105/1223/105_1223_588/_pdf
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