The effect of preoxidation atmosphere on oxidation behavior and thermal cycle life of thermal barrier coatings

Mineaki Matsumoto, Kazuyuki Hayakawa, Satoshi Kitaoka, Hideaki Matsubara, Hiroshi Takayama, Yukio Kagiya, Yuuji Sugita

研究成果: Article査読

49 被引用数 (Scopus)

抄録

The effects of oxygen partial pressure (pO2) of the preoxidation atmosphere on the growth of thermally grown oxide (TGO) and thermal cycle life of plasma-sprayed thermal barrier coatings (TBCs) were investigated. The pO2 of the preoxidation atmosphere was controlled by using a solid-state electrochemical oxygen pump system. The purity and microstructure of continuous Al2O3 layer formed on the bond coat during preoxidation at 1050 °C were highly influenced by the pO2 of the atmosphere. The specimen preoxidized at 1050 °C under a pO2 of 10-14 to 10-15 atm, which is around the dissolution pressure of (Co, Ni)(Al, Cr)2O4 spinel, showed the lowest growth rate of TGO and the longest thermal cycle life.

本文言語English
ページ(範囲)119-125
ページ数7
ジャーナルMaterials Science and Engineering A
441
1-2
DOI
出版ステータスPublished - 2006 12月 15

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「The effect of preoxidation atmosphere on oxidation behavior and thermal cycle life of thermal barrier coatings」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