摘要
采用电化学沉积法在PAN基碳纤维(CF)表面制备了钙磷涂层.通过SEM(Scanning Electron Microscope)、EDS(Energy Disperse Spectroscopy)和电沉积时极化曲线等对涂层进行了表征,研究了不同电流密度、沉积时间,以及供电模式等工艺参数对涂层形貌结构的影响,探索了钙磷涂层的电化学沉积规律以控制钙磷涂层的形貌结构.研究发现:沉积电流和沉积电压对涂层的相组成和形貌结构具有较大影响;在低电流密度下,涂层主要由针状晶粒组成;在高电流密度下,主要由棒状晶粒组成;增加沉积电流和沉积时间,有利于改善涂层的微观结构和均匀性.
Calcium phosphate coating was prepared on PAN-based carbon fibers by using elec trochemical deposition,the prepared calcium phosphate coatings were characterized by scan ning electron microscope （SEM）, energy dispersive spectroscopy （EDS） and polarization curves to study on how to prepare calcium phosphate coating with excellent crystal structure. In this paper, process parameters like current density,deposition time and patterns etc. are controlled and determined to research the general regularities of preparing calcium phos phate coatings. The research shows that voltage and current values affect the components and structures of the coatings. The coating is composed of slightness-needle grains at low current density while rod like grains at high current density. The microstructure and dispersible uniformity will be improved with increasing the current density and deposition time.
出处
《陕西科技大学学报（自然科学版）》
2015年第3期68-72,共5页
Journal of Shaanxi University of Science & Technology
基金
陕西省科技厅自然科学基础研究计划项目(2014JM6233)
陕西科技大学学术骨干培育计划项目(XSGP201208)
陕西科技大学博士科研启动基金项目(BJ13-09)
关键词
电化学沉积
碳纤维
钙磷涂层
沉积电流
沉积电压
electrochemical deposition
carbon fibers
calcium phosphate coating
deposition current
deposition voltage
