Processing, microstructure, and thermal expansion measurements of high temperature Ru-Al-Cr B2 alloys

Y. Hashimoto, N. L. Okamoto, M. Acosta, D. R. Johnson, H. Inui

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

The B2 intermetallic compound RuAl has a melting temperature above 2000 °C and is a candidate for high temperature structural applications. A large extension of the B2 phase field is found in the Ru-Al-Cr system as was documented by the characterization of arc-melted and heat treated alloys. Two compositions consisting of Ru-35Al-19Cr and Ru-20Al-38Cr (at. %) were directionally solidified in an optical floating zone furnace. Depending upon the processing conditions, single phase, polycrystalline, B2 microstructures could be produced. The coefficient of thermal expansion (CTE) was measured from room temperature to 1250 °C for the Ru-20Al-38Cr alloy, and an average value of 11×10-6 K-1 was found. Additionally, the thermal conductivity was measured as 27 W/mK at room temperature for the Ru-20Al-38Cr B2 alloy and as 89 W/mK for binary RuAl.

本文言語English
ページ(範囲)215-220
ページ数6
ジャーナルMaterials Research Society Symposium Proceedings
1128
出版ステータスPublished - 2009 11 17
外部発表はい
イベント2008 MRS Fall Meeting - Boston, MA, United States
継続期間: 2008 12 22008 12 5

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

フィンガープリント 「Processing, microstructure, and thermal expansion measurements of high temperature Ru-Al-Cr B2 alloys」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。

引用スタイル