羟基磷灰石是一种最有发展前途的生物材料之一.采用电泳沉积方法在钛合金基体上制备了HA/TiO2生物陶瓷涂层.将HA和TiO2粉体分散到正丁醇溶液中,再加入三乙醇胺,通过zeta电位确定了稳定的悬浮液中三乙醇胺和HA/TiO2的含量.研究了沉积电压和电泳时间对HA/TiO2涂层形貌和沉积量的影响.制得均匀致密涂层的适宜电压范围为250~350V.研究结果表明:由于电场强度随沉积时间改变,HA/TiO2沉积量随着沉积时间的增加表现出2段沉积速率不同的线性增长.
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