| 粉末粒度对等离子喷涂Al2O3-13%TiO2陶瓷涂层组织结构及性能的影响 |
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| 引用本文： | 王灿明,孙宏飞.粉末粒度对等离子喷涂Al2O3-13%TiO2陶瓷涂层组织结构及性能的影响[J].材料保护,2011,44(2):56-58,9. |
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| 作者姓名： | 王灿明 孙宏飞 |
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| 作者单位： | 山东科技大学材料学院,山东,青岛,266510 |
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| 基金项目： | 山东科技大学科学研究"春蕾计划"资助项目 |
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| 摘 要： | 等离子喷涂粉末的粒度影响涂层组织结构与性能。选用4种不同粒度的Al2O3-13%TiO2(AT13)粉末等离子喷涂陶瓷涂层,研究了喷涂粉末粒度对涂层组织结构、孔隙率、显微硬度和沉积效率的影响。结果表明:采用较细的喷涂粉末制备的AT13涂层致密、均匀,孔隙率低;随着喷涂粉末粒度增大,涂层的孔隙率增加,显微硬度降低,沉积效率先增后减;采用粒度为38～44μm的粉末喷涂涂层时沉积效率最高,达到51%,涂层组织也较致密,这是等离子喷涂AT13陶瓷层较理想的粒度。
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| 关 键 词： | 等离子喷涂 陶瓷涂层 组织结构 孔隙率 显微硬度 沉积效率 |
Influence of Grain Size on Microstructure and Performance of Plasma Sprayed Al_2O_3-13%TiO_2 Ceramic Coating |
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| WANG Can-ming,SUN Hong-fei.Influence of Grain Size on Microstructure and Performance of Plasma Sprayed Al_2O_3-13%TiO_2 Ceramic Coating[J].Journal of Materials Protection,2011,44(2):56-58,9. |
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| Authors: | WANG Can-ming SUN Hong-fei |
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| Affiliation: | WANG Can-ming,SUN Hong-fei(College of Materials Science and Engineering,Shandong University of Science and Technology,Qingdao 266510,China). |
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| Abstract: | Four types of Al2O3-13%TiO2(AT13) powders with different grain sizes were used as the starting materials to prepare plasma sprayed ceramic coatings.The effect of the grain size of sprayed powders on the microstructure,porosity,microhardness and deposition efficiency of the ceramic coatings was investigated.Results show that the AT13 ceramic coating prepared with fine ceramic powder is dense and uniform,and has a lower porosity.With the increase of the powder size,the porosity of the ceramic coating increase... |
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| Keywords: | plasma spraying ceramic coating microstructure porosity microhardness deposition efficiency |
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