【摘要】 以工业级硅酸钠为电解液，铝材在交流电压作用下进行等离子微弧氧化反应，电压升高，膜厚增大。用Ｘ－ 射线衍射分析法和扫描电镜法检测，氧化膜为非晶态氧化铝陶瓷膜。硬度试验和腐蚀试验表明：该膜硬度高、耐强碱腐蚀性强。更多还原

【Abstract】 Using commercial sodium silicate as electrolyte, aluminum surface was treated with plasma micro-arc oxidation under alternate current, film thickness increased with the increase of voltage. Oxide film was determinated with X-ray diffractometry and scanning electron microscopy exhibited amorphous and ceramic structure. Results of hardness and corrosion tests show that the aluminum oxide ceramic film is of high hardness and excellent alkaline corrosion resistance.更多还原