在以Na3PO4为主盐溶液的电解液体系中加入FeSO4,在纯钛TA2基体上进行微弧氧化,获得颜色均匀、致密性较好的浅棕色氧化物陶瓷膜层,研究了FeSO4浓度对微弧氧化膜层颜色的影响规律。结果表明,该膜层颜色在中国人牙齿颜色分布的色度范围内,对由四环素和氟引起的变色牙遮色有特殊应用,溶液中FeSO4浓度的增大,膜层的颜色向红色和黄色发生偏移。 FeSO4 was added to the electrolyte system containing Na3PO4 as the main salt solution, and micro-arc oxidation was performed on the pure titanium TA2 matrix to obtain a light brown oxide ceramic film with uniform color and compactness. The effects of FeSO4 concentration on micro-arc Oxide film color of the law. The results show that the color of the film has a special application to the discoloration of tooth color caused by tetracycline and fluorine in the chromatic range of color distribution of Chinese teeth. The concentration of FeSO4 in the solution increases and the color of the film changes to red and yellow Offset.