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Fabrication of ceramics coatings by gas-assisted deposition

Fabrication of ceramics coatings by gas-assisted deposition

作     者:Takahiro Akao Motozo Hayakawa Takahiro Akao;Motozo Hayakawa

作者机构:Faculty of Engineering Tottori University 4-101 Koyama Tottori 680-8552 Japan 

出 版 物:《材料与冶金学报》 (Journal of Materials and Metallurgy)

年 卷 期:2006年第5卷第4期

页      面:276-279页

学科分类:08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 

基  金:日本国文部科学研究基金项目(No.17760570) 

主  题:制陶业 粉末 微观结构 材料 

摘      要:Ceramics (alumina) coating on several materials has been successfully achieved at room temperature by gas - assisted deposition (GAD) technique. In the GAD process the alumina powder was accelerated by jet flow with velocity of ~ 1000 m/s and impacted to a substrate, thereby a flat and dense film was deposited up to 10 μm on the substrate without any additional heating. The crystal structure of the alumina in an obtained GAD films seemed as amorphous like. The crystalline phase was recovered by post annealing at 1 300 ℃, however, the matrix resulted in a hollow structure.

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