阴极等离子电解沉积制备Al2O3-Ru复合涂层的机理与性能
Mechanism and Properties of Al2O3-Ru Composite Coatings Prepared by Cathode Plasma Electrolytic Deposition
薛建超 1贾波 2王亚菲 2冯庆 2柴作强 2郝小军 2薛娟琴3
作者信息
- 1. 西安建筑科技大学 冶金工程学院,陕西 西安 710055;西安泰金新能科技股份有限公司,陕西西安 710016
- 2. 西安泰金新能科技股份有限公司,陕西西安 710016
- 3. 西安建筑科技大学 冶金工程学院,陕西 西安 710055
- 折叠
摘要
采用阴极等离子体电沉积法制备了不同贵金属掺杂氧化铝涂层.结果表明,贵金属掺杂氧化铝制备的涂层孔隙率降低(特别是Al2O3-Ru),涂层的耐高温循环氧化性能和抗剥落性能均有所提升.Al2O3-Ru复合涂层的效果更好,平均氧化速率值K和平均氧化物碎裂量G最小.同时,利用能斯特方程解释了贵金属和氧化铝同时沉积的原因,对沉积的整个过程和机理进行了分析和探讨.
Abstract
Alumina coatings doped with different precious metals were prepared by cathode plasma electrolytic deposition.Results show that the porosity of precious metal-doped alumina coatings(especially Al2O3-Ru)decreases,and the high-temperature cyclic oxidation resistance and spallation resistance are enhanced.The Al2O3-Ru composite coating shows better effect:its average oxidation rate K and average amount of oxide spallation G are minimum.Meanwhile,Nernst equation was used to explain the simultaneous deposition of precious metal and alumina,and the whole process and mechanism of deposition were analyzed.
关键词
阴极等离子电解沉积/贵金属/孔隙率/耐高温循环氧化/抗剥落性能Key words
cathode plasma electrolytic deposition/precious metal/porosity/high-temperature cyclic oxidation resistance/spallation resistance引用本文复制引用
出版年
2024
NETL
NSTL
万方数据