Oxidation behavior of Mo-Si-B In-situ composites

Akira Yamauchi, Kyosuke Yoshimi, Yoshihiro Murakami, Kazuya Kurokawa, Shuji Hanada

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Isothermal oxidation behavior of Al added Mo-Si-B in-situ composites was investigated under Ar-20%O2 and air atmosphere over the temperature range of 1073–1673 K. The Al added Mo-Si-B composites ((Mo-8.7mol%Si-17.4mol%B)-1mol%Al) were prepared by arc-melting, and homogenized at 2073 K for 24 h in an Ar-flow atmosphere. The ternary Mo-Si-B in-situ composite exhibited a rapid mass loss at the initial oxidation stage and then the passive oxidation after the substrates were sealed with borosilicate glass in the temperature range of 1173–1473 K, whereas it exhibited a rapid mass gain around 1073 K. On the other hand, the Al addition significantly improved the oxidation resistance of Mo-Si-B in-situ composites at temperatures from 1073–1573 K. These excellent oxidation resistances are considered to be due to the rapid formation of a continuous, dense scale of Al-Si-O complex oxides.

本文言語English
ホスト出版物のタイトルDesigning of Interfacial Structures in Advanced Materials and their Joints
編集者Masaaki Naka
出版社Trans Tech Publications Ltd
ページ215-220
ページ数6
ISBN(印刷版)9783908451334
DOI
出版ステータスPublished - 2007
イベントInternational Workshop on Designing of Interfacial Structures in Advanced Materials and their Joints, DIS 2006 - Osaka, Japan
継続期間: 2006 5 182006 5 20

出版物シリーズ

名前Solid State Phenomena
127
ISSN(印刷版)1012-0394
ISSN(電子版)1662-9779

Other

OtherInternational Workshop on Designing of Interfacial Structures in Advanced Materials and their Joints, DIS 2006
CountryJapan
CityOsaka
Period06/5/1806/5/20

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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