科研之友
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摘要
Ceramic coatings were formed on a pure aluminum substrate in an aqueous solution of phosphate salt, using the pulsating micro-arc oxidation method. XRD indicated that the film composed of pure gamma-Al2O3. SEM showed that the surface of the film was micro-porous with 1-5 mu m pores. EDS gave the element distributions of the cross-section. The result indicated that elements from the electrolyte like P could be incorporated into the film during MAO process. The microhardness test showed that the film had an average hardness of 654 HV0.025. The growth process of the Al2O3 ceramic-like film was discussed on the basis of the structure analysis.
- 出版日期2005-12
- 单位山东大学
