材料科学
膜
陶瓷
涂层
基质(水族馆)
溅射
溅射沉积
复合材料
粘附
薄膜
表面粗糙度
粒度
化学工程
制作
纳米技术
沉积(地质)
金属
多孔性
光电子学
冶金
化学
地质学
医学
古生物学
替代医学
病理
沉积物
生物化学
作者
V. Jayaraman,Shuguang Deng,M. Pakala,R.Y. Lin
标识
DOI:10.1016/0376-7388(94)00212-h
摘要
The present work focuses on the synthesis of ultrathin palladium films (< 500 nm) grown on porous ceramic supports by the sputter deposition technique. The following two parameters were found most critical to the synthesis of the gas-tight metal-ceramic composite: substrate type (surface roughness) and the deposition temperature. Fairly gas-tight Pd films with good adhesion could be coated on sol-gel derived fine pore γ-alumina supports but not on coarse α-alumina supports. Poor adhesion between the coated film and the γ-alumina support was observed for films coated at room temperature, to a thickness of 300 nm or larger. Both coating temperature (80–600°C) and substrate type affect the grain size, nitrogen gas-tightness and the adhesion of the deposited metallic films. Characterization results show that 400°C is the optimum coating temperature. XRD and SEM data on these films show that the films are fairly crystalline, with a uniform and smooth surface morphology.
科研通智能强力驱动
Strongly Powered by AbleSci AI