| 纳米结构Ni/Al2O3热喷涂喂料的制备及显微分析 |
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| 引用本文： | 李长青,马世宁,叶雄林,林琳.纳米结构Ni/Al2O3热喷涂喂料的制备及显微分析[J].表面技术,2011,40(4):11-13,47. |
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| 作者姓名： | 李长青 马世宁 叶雄林 林琳 |
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| 作者单位： | 装甲兵工程学院装备再制造工程系,北京,100072;装甲兵工程学院装备再制造工程系,北京,100072;装甲兵工程学院装备再制造工程系,北京,100072;装甲兵工程学院装备再制造工程系,北京,100072 |
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| 摘 要： | 采用化学包覆、喷雾造粒以及气体保护烧结等工艺,制备了纳米结构Ni/Al2O3热喷涂喂料.对喂料以及使用该喂料制备的等离子喷涂涂层的显微结构进行了分析,结果表明:化学包覆后,Ni/Al2 O3粒度约为100～200 nm,喂料为多孔的球形结构,直径约为20～50 μm.采用该喂料制备的涂层表面粗糙度约为50μm,内部呈现...
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| 关 键 词： | 纳米材料 喂料 等离子喷涂 显微结构 |
Preparation and Microstructure Analysis of Nanostructured Ni/Al2O3 Thermal Spraying Feedstock |
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| LI Chang-qing,MA Shi-ning,YE Xiong-lin,LIN Lin.Preparation and Microstructure Analysis of Nanostructured Ni/Al2O3 Thermal Spraying Feedstock[J].Surface Technology,2011,40(4):11-13,47. |
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| Authors: | LI Chang-qing MA Shi-ning YE Xiong-lin LIN Lin |
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| Affiliation: | LI Chang-qing,MA Shi-ning,YE Xiong-lin,LIN Lin(Department of Remanufacture Engineering,Academy of Armored Forces Engineering,Beijing 100072,China) |
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| Abstract: | Nanostructured Ni/Al2O3 feedstocks were fabricated via chemical wrapping,spraying dry and gas protected sintering.The feedstocks and the microstructre of the plasma spraying coatings prepared with the feedstocks were analyzed.The result shows that the particle size of chemical wrapped Ni/Al2O3 is about 100~200 nm.The feedstocks are porous spheric particles which size is about 20~50 μm.Roughness of the coating surface is about 50 μm.The coating contains full deformed thin layers,and nanoscale grains of about 100 nm are found. |
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| Keywords: | nanoscale material feedstocks plasma spraying microstructure |
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