Influences of Al 2 O 3 grain size on high-temperature oxidation of nano-Ni/Al 2 O 3 composites

Hai Vu Pham, Daisuke Maruoka, Makoto Nanko

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Two 5 vol% Ni/Al 2 O 3 composites with the difference in Al 2 O 3 grain size were fabricated by pulsed electric current sintering technique to investigate the influence of Al 2 O 3 grain size on oxidation behavior of the composites. Average Al 2 O 3 grain sizes of two fabricated composites were 1.1 μm and 0.5 μm after sintering. Oxidation tests were conducted at temperatures ranging from 1100 to 1350 °C for 1-48 h in air. A thin NiAl 2 O 4 layer was observed in exposed surface of samples after oxidation. An oxidized zone that consisted of Al 2 O 3 matrix and NiAl 2 O 4 grains was defined. Growth of the oxidized zone obeyed the parabolic law. Influences of Al 2 O 3 grain size on high-temperature oxidation of the composites were discussed.

本文言語English
ページ(範囲)120-123
ページ数4
ジャーナルJournal of Asian Ceramic Societies
4
1
DOI
出版ステータスPublished - 2016 3 1

ASJC Scopus subject areas

  • Ceramics and Composites

フィンガープリント 「Influences of Al <sub>2</sub> O <sub>3</sub> grain size on high-temperature oxidation of nano-Ni/Al <sub>2</sub> O <sub>3</sub> composites」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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