航空材料学报2012，Vol.32Issue(3)：23-28,6.DOI:10.3969/j.issn.1005-5053.2012.3.004
液相等离子喷涂纳米ZrO2热障涂层的显微结构及抗热震性能研究
Microstructure and Thermal Shock Resistance of Solution Precursor Plasma Spray Nanostructured ZrO2 Thermal Barrier Coatings
程旭东 1闵捷 1孟晓明 2向泓宇 1张朴2
作者信息
- 1. 武汉理工大学材料复合新技术国家重点实验室,武汉430070
- 2. 武汉理工大学材料科学与工程学院,武汉430070
- 折叠
摘要
Abstract
The nanostructured ZrO2 thermal barrier coatings (TBCs) are deposited by Solution Precursor Plasma Spray(SPPS). The a-nalysis methods, such as TEM, SEM, and XRD are used to characterize the coatings in the aspects of grain,microstructure and phase compositions.. The thermal shock resistance of the nanostruclured coatings was measured by forced-air. Experimental results show that grain size of the SPPS TBCs is about 30nm with uniform pore structure and desired tetragonal phase ZrO2. The special pore structure were benefit to relieve the stress of the coatings, diminish the driving force for the initiation and propagation of cracks, so the thermal shock resistance of the coatings was improved.关键词
液相等离子喷涂/纳米结构/孔隙结构/相稳定性Key words
solution precursor plasma spray/ nanostruclure/ pore structure/ phase stability分类
通用工业技术引用本文复制引用
程旭东,闵捷,孟晓明,向泓宇,张朴..液相等离子喷涂纳米ZrO2热障涂层的显微结构及抗热震性能研究[J].航空材料学报,2012,32(3):23-28,6.
