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为提高口腔医学领域用纯钛铸件的表面性能,改善其美观效果,用辉光等离子氮化、脉冲电弧离子镀涂层复合处理纯钛铸件,使用扫描电镜、接触角测量系统及X射线衍射分析仪评价其表面性能及晶相结构组成,再用分光测色计分析其色彩学特征。结果表明,纯钛铸件等离子氮化、镀氮化钛涂层复合处理后表面形成均匀稳定的TiN复合梯度涂层;人工唾液在复合处理试件表面的接触角(60.29±2.00)°明显小于纯钛(73.12±3.29)°;颜色均匀美观,在CIE表色系中L*:61.22±0.455、a*:1.84±0.055、b*:25.66±0.219,呈金黄色,表面晶相结构以耐磨性较好的TiN、Ti2N为主。
In order to improve the surface properties of pure titanium castings in the field of stomatology and improve its aesthetic effect, pure titanium castings were treated with glow plasma nitriding and pulse arc ion plating. The scanning electron microscopy, contact angle measurement system and X-ray diffraction analysis The surface properties and the composition of the crystalline phase were evaluated, and then the colorimetric characteristics were analyzed by spectrophotometer. The results showed that TiN composite gradient coating was formed on the surface of the pure titanium castings after plasma nitriding and TiN coating treatment. The contact angles of the artificial saliva on the surface of the composite specimens were significantly less than that of the pure TiN composite castings (60.29 ± 2.00) ° Titanium (73.12 ± 3.29) °; the color is uniform and beautiful. In the CIE colorimetric system, L *: 61.22 ± 0.455, a *: 1.84 ± 0.055, b *: 25.66 ± 0.219, showing a golden yellow color. The better TiN, Ti2N-based.