微弧氧化(MAO)技术不从外部引入陶瓷物料,而是直接在基体金属表面"原位(In-Situ)"氧化烧结获得氧化物陶瓷层,具有膜层致密性高、与基体结合力强等特点.综述了钛(Ti)及钛合金MAO技术的工艺过程、形成机理、影响因素以及应用领域,简介了采用MAO制备TiO2复合薄膜及其在光催化方面应用的研究结果,以期进一步推动钛合金MAO技术的发展和应用.
A review was given about the procedures, mechanism of surface film formation, influencing factors and application of micro-arc oxidation (MAO) technique for Ti and Ti alloys. It was pointed out that MAO technique could be used to directly generate oxide ceramic films on metal substrates via in-situ oxidation and sintering in the absence of externally intreduced ceramic materials. The technique was featured by good compactness of oxidation films and strong adhesion of the films to substrate.Moreover, preparation of TiO2 composite films via MAO technique and the application of the ceramic oxide films in catalysis were briefed, which was expected to promote the development and application of MAO technique.
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