| 粉体聚集状态对自蔓延高温合成(SHS)反应喷涂Al2O3-Al2Cu3涂层的影响 |
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| 引用本文： | 王建江,杜心康,赵忠民,张龙,叶明惠,姚占军.粉体聚集状态对自蔓延高温合成(SHS)反应喷涂Al2O3-Al2Cu3涂层的影响[J].金属热处理,2004,29(1):62-65. |
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| 作者姓名： | 王建江 杜心康 赵忠民 张龙 叶明惠 姚占军 |
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| 作者单位： | 1. 西安交通大学,材料科学与工程学院,陕西,西安,710049;石家庄军械工程学院,先进材料研究所,河北,石家庄,050003
2. 石家庄军械工程学院,先进材料研究所,河北,石家庄,050003 |
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| 基金项目： | 国家自然科学基金资助项目(50272084) |
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| 摘 要： | 采用SHS技术和传统氧-乙炔火焰喷涂技术,利用Al与CuO间的高能铝热反应,在钢的表面制备了Al2O3-Al2Cu3复相涂层.研究了粉体聚集状态对SHS火焰喷涂涂层物相组成、组织结构和反应机理的影响,结果表明非团聚CuO-Al粉体分散在气流中缺乏发生SHS反应的条件,而团聚CuO-Al体,经历反应孕育、飞行燃烧、碰撞、结构转变与凝固4个阶段,形成层状结构.
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| 关 键 词： | 自蔓延高温合成 燃烧合成 反应喷涂 团聚体 陶瓷涂层 反应机理 |
| 文章编号： | 0254-6051(2004)01-0062-04 |
| 修稿时间： | 2003年7月17日 |
Influence of Aggregating State of Particle on Al2O3-Al2Cu3 Coating Produced by SHS Reactive Spraying |
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| WANG Jian jiang ,DU Xin kang ,ZHAO Zhong min ,ZHANG Long ,YE Ming hui ,YAO Zhan jun.Influence of Aggregating State of Particle on Al2O3-Al2Cu3 Coating Produced by SHS Reactive Spraying[J].Heat Treatment of Metals,2004,29(1):62-65. |
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| Authors: | WANG Jian jiang DU Xin kang ZHAO Zhong min ZHANG Long YE Ming hui YAO Zhan jun |
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| Affiliation: | WANG Jian jiang 1,2,DU Xin kang 2,ZHAO Zhong min 2,ZHANG Long 2,YE Ming hui 2,YAO Zhan jun 2 |
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| Abstract: | Utilizing SHS reactive powder spraying technique with the combination of oxyacetylene spraying and combustion synthesis,Al 2O 3 Al 2Cu 3 multiphase coating was produced on iron substrate taking Al and CuO as main reactants.Influences of aggregating state on coating component,microstructure and reactive mechanism were studied.Results showed that non aggregated Al and CuO mixed powders have few opportunities to react because of being dispersed apart in the blow,oppositely,for aggregated particles,laminate structure has been formed after four stages of pregnant period,flight combustion,colliding and structure transformation and solidification. |
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| Keywords: | self-propagating high-temperature synthesis(SHS) combustion synthesis reactive spray aggregated particle ceramic coating reactive mechanism |
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