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采用原子层沉积技术实现了膜层厚度均匀性小于3.5%的银饰TiO_2保护薄膜的制备。X射线衍射测试结果表明,沉积温度为100℃时薄膜为无定型结构,沉积温度为250℃时薄膜为锐钛矿相。腐蚀实验结果表明,30nm和45nm厚度的TiO_2薄膜都具一定的抗变色能力,但厚度为45nm的TiO_2薄膜的抗变色能力更佳。光谱测试结果表明,在不影响银饰外观的前提下,单层TiO_2作为保护膜的抗变色效果无法达到最佳。
The atomic layer deposition technology was used to fabricate the silver-coated TiO_2 film with less than 3.5% thickness uniformity. The X-ray diffraction results show that the film is amorphous when the deposition temperature is 100 ℃, and anatase phase when the deposition temperature is 250 ℃. The results of corrosion test show that TiO 2 films with thickness of 30nm and 45nm have some anti-discoloration ability, but the anti-discoloration ability of TiO_2 film with thickness of 45nm is better. The results of spectrum test show that the anti-discoloration effect of single-layer TiO_2 as protective film can not be optimized without affecting the appearance of silverware.