| 等离子喷涂纳米ZrO_2-8%Y_2O_3涂层的结构及性能 |
| |
| 引用本文： | 章桥新,王晓辉,张亮.等离子喷涂纳米ZrO_2-8%Y_2O_3涂层的结构及性能[J].材料保护,2009,42(1). |
| |
| 作者姓名： | 章桥新 王晓辉 张亮 |
| |
| 作者单位： | 1. 武汉理工大学机电工程学院,湖北,武汉,430070;武汉理工大学材料复合新技术国家重点实验室,湖北,武汉,430070
2. 武汉理工大学材料复合新技术国家重点实验室,湖北,武汉,430070 |
| |
| 摘 要： | 热障涂层能提高工件的性能,延长其使用寿命,但目前对其厚度0.5 mm以上的研究报道不多.为此,以纳米ZrO2-8%(质量分数)Y2O3粉末(YSZ)为原料,用等离子体喷涂法制备了3种厚度(0.6,0.8,1.2 mm)的热障涂层,并对涂层的结构和性能进行了研究.结果表明:纳米涂层主要由未熔粉末及周围的柱状晶、等轴晶组成,可观察到大量纳米晶,喷涂电流对组织结构的影响远大于喷涂距离;热障涂层结合强度随涂层厚度的增加而降低;涂层隔热性能随涂层厚度的增加而提高,温度越高优势越明显.
|
| 关 键 词： | 纳米YSZ粉末 热障涂层 结构与性能 |
Structures and Properties of Yttrium Stabilized Zirconia Coating Prepared by Plasma Spraying |
| |
| ZHANG Qiao-xin,WANG Xiao-hui,ZHANG Liang.Structures and Properties of Yttrium Stabilized Zirconia Coating Prepared by Plasma Spraying[J].Journal of Materials Protection,2009,42(1). |
| |
| Authors: | ZHANG Qiao-xin WANG Xiao-hui ZHANG Liang |
| |
| Affiliation: | ZHANG Qiao-xin a,b,WANG Xiao-huin b,ZHANG Iiang b(a.School of Mechatronic Engineering,Wuhan University of Tech-nology,b.State Key Laboratory of Advanced Technology for Ma-terials Synthesis , Processing,Wuhan 430070,China) |
| |
| Abstract: | Nanostructured thermal bar-rier coatings with different thicknesses(0.6,0.8,1.2 mm)were prepared by plasma spraying,using nanostructured powders of ZrO2-8% Y2O3(YSZ)as the raw materials.The microstructures and properties of the coatings were analyzed.Results showed that the plasma sprayed coatings were composed of non-melted pow-ders and nearby columnar-like crystals and axle-equal nanocrys-tals.The plasma spraying current density had larger influences on the structure of the thermal barrier coatings than p... |
| |
| Keywords: | plasna spraying thermal barrier coating nanostructured YSZ powder structure and properties |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
