Al2O3 Multiphase Ceramics Coatings Sprayed by SHS-RFS Based on the Cladding Powders
Al2O3 Multiphase Ceramics Coatings Sprayed by SHS-RFS Based on the Cladding Powders
复制标题
基于熔覆粉末的SHS-RFS喷涂Al2O3复相陶瓷涂层
DOI：
10.4028/www.scientific.net/kem.280-283.1111
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发表时间：
2004-12
期刊：
影响因子：
--
通讯作者：
J.Yan
中科院分区：
文献类型：
--
作者：
J.J.Wang;X.K.Du;H.W.Liu;J.Yan
采用自蔓延反应火焰喷涂技术制备了Al 2 O3复相陶瓷涂层。采用化学镀铜技术制备了铜包覆层的Al-CuO粉末，使其分别成为独立的SHS反应单元。研究了自蔓延反应火焰喷涂铜覆层Al-CuO粉末形成Al 2 O3复相陶瓷涂层的现象和原理。结果表明，在喷涂过程中，Al-CuO粉末表面覆铜是SHS反应的必要条件。包覆层越好，SHS反应越充分，相变速率越高。SHS反应生成的Cu和Al_2 O_3细小熔滴撞击基体后发生扁平化，形成层状Al_2 O_3基复相陶瓷涂层。涂层与基体的结合强度高达19.8MPa，涂层的显微硬度为Hv 712。涂层的综合性能优于传统火焰喷涂陶瓷涂层。
Based on SHS reactive flame spray technology, Al2O3 multiphase ceramics coatings were produced. Chemical copper-plating technology was used to produce the Al-CuO powders of copper cladding, which became individual SHS reactive units respectively. The phenomena and principles of the SHS reactive flame spray of the Al-CuO powders of copper cladding forming Al2O3 multiphase ceramics coatings were investigated. It was found that copper cladding of Al-CuO powders were necessary for the SHS reaction during the spray process. The better the cladding was, the more sufficient the SHS reaction, and the higher the transformation rate was. The Cu and Al2O3 fine molten drops produced by the SHS reaction bumped the substrate and flatted to form layer-shaped Al2O3-based multiphase ceramics coatings. The binding strength between the coating and substrate was as high as 19.8MPa, and the micro-hardness of the coatings was Hv712. The overall properties of the coatings were better than those of the ceramics coatings sprayed by the traditional flame spray.
影响因子：
3.1
作者：
Kodama, T;Ikeda, Y;Tamura, H
通讯作者：
Tamura, H
影响因子：
5.4
作者：
Fauchais, P;Vardelle, A;Denoirjean, A
通讯作者：
Denoirjean, A