Fabrication of nanostructure composites in functionally graded coatings with supersonic free-jet PVD

Atsushi Yumoto, Takahisa Yamamoto, Fujio Hiroki, Ichiro Shiota, Naotake Niwa

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

Graded Al/AlTi and Al/Al-Si coatings are prepared by depositing nanoparticles with supersonic free-jet PVD (SFJ-PVD). The SFJ-PVD has been developed as a new coating method in which a coating film is formed by depositing nanoparticles with very high velocity onto a substrate. The high velocity of nanoparticles is produced by the supersonic gas flow of inert gas. A smooth, compact and defect-free microstructure is formed both at the interface between substrates and coating films and inside the coating films. The microstructures of Al/AlTi and Al/Al-Si coating films have very fine grain size. Mixing Ti and Al nanoparticles by depositing them onto a substrate produces in-situ syntheses of γ-TiAl and α2-Ti3Al intermetallic compounds on the substrate. It is confirmed with nano-indentation hardness tester that graded coatings have graded hardness corresponding to the gradation of composition.

本文言語English
ホスト出版物のタイトルFunctionally Graded Materials VIII, FGM2004 - Proceedings of the 8th International Symposium on Multifunctional and Functionally Graded Materials, (FGM2004)
ページ341-346
ページ数6
出版ステータスPublished - 2005 12 1
外部発表はい
イベント8th International Symposium on Multifunctional and Functionally Graded Materials, FGM2004 - Leuven, Belgium
継続期間: 2004 7 112004 7 14

出版物シリーズ

名前Materials Science Forum
492-493
ISSN(印刷版)0255-5476

Conference

Conference8th International Symposium on Multifunctional and Functionally Graded Materials, FGM2004
CountryBelgium
CityLeuven
Period04/7/1104/7/14

ASJC Scopus subject areas

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

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