Preparation and properties of porous lanthanum doped alumina ceramic composites with self-organization

• NISHIO Yoshitoyo

  Ceramics Research Laboratory, Nagoya Institute of Technology

• OZAWA Masakuni

  Ceramics Research Laboratory, Nagoya Institute of Technology

抄録

Porous lanthanum doped alumina ceramic composite was prepared by self-organization and solid-state reaction between Al₂O₃ and La₂O₃. Crystal phases, microstructure and density of ceramics were examined to characterize novel composites in the system of Al₂O₃ and La₂O₃. After heat treatment at 1300°C and 1400°C, LaAl₁₁O₁₈ plate-like crystals were formed through the solid-state reaction of LaAlO₃ with Al₂O₃. The addition of large amounts of La contributed to the increase of LaAl₁₁O₁₈ plate-like crystals and their cross-linking microstructure. The porous alumina composites maintained high surface areas of 20 m²/g after heating at 1300°C, and 11 m²/g at 1400°C. The bending strength of La added alumina composite was 57 MPa after heating at 1400°C.

収録刊行物

• Journal of the Ceramic Society of Japan

  Journal of the Ceramic Society of Japan 117 (1364), 499-502, 2009

  公益社団法人 日本セラミックス協会

キーワード

• Alumina
• Lanthanum
• Lanthanum hexaaluminate
• Porosity
• Specific surface area
• Bending strength

詳細情報

• CRID: 1390001205283176832
• NII論文ID: 10025967211
• NII書誌ID: AA12229489
• DOI: 10.2109/jcersj2.117.499
• COI: 1:CAS:528:DC%2BD1MXksFOkt7Y%3D
• ISSN: 13486535
• ISSN: 18820743
• NDL書誌ID: 10198450
• Web Site: http://id.nii.ac.jp/1476/00005429/
• Web Site: http://id.ndl.go.jp/bib/10198450
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10198450
• Web Site: http://www.jstage.jst.go.jp/article/jcersj2/117/1364/117_1364_499/_pdf
• 本文言語コード: en
• データソース種別:
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