【作者】 金辉；

【导师】 冯克成；

【作者基本信息】 长春理工大学 ， 物理电子学， 2009， 硕士

【摘要】 通过对不同能量参数及不同电解液组分条件下制备的钛合金微弧氧化膜层表面及截面形貌的分析,探讨了陶瓷层的生长过程及影响钛合金微弧氧化膜层表面形貌变化的因素。研究表明:微弧氧化膜层的表面形貌及生长过程受控于能量参数的模式选择,在恒定的电参数下随着氧化时间的延长,膜层表面的微孔直径增大,微孔间的孔径偏差增大,孔的数量减少;电流密度、电压和占空比对微弧氧化膜层形貌的影响规律与氧化时间对其的影响相似;随脉冲频率的增加,孔的数量增加,膜层表面的微孔直径减小,微孔间的孔径偏差减小,粗糙度值降低。与此同时,电解液的组分对也是至关重要的因素,由实验分析可知,在磷酸盐电解液中制得的二氧化钛薄膜的各项性能要好于比其他电解液中制备的陶瓷膜更多还原

【Abstract】 The growth process of ceramic coatings formed by micro-arc oxidation on titanium were studied by the analysis of the surface and sectional pattern for ceramic coatings that treated by different electrical parameter and electrolyte.The results indicate that the choice and control of electrical parameter play a key role in the surface morphology and growth of ceramic coatings.With the Prolonging oxidation time the micropores number on the surface of the coatings decreases obviously, while the size and the deviation of micropores increases under constant electrical parameters.The current density、voltage and duty cycle have a influencing rule to morphology of ceramic coatings were similar to oxidation time.As the frequency increased, the micropores number on the surface of the coatings increases, the Pores size and the deviation of mieropores decreased, so did the surface roughness. At the same time, the impact of the electrolyte is also essential. By the experimental analysis we concluded that the performance of the ceramic coatings which was treated in the phosphate electrolyte was better than the others.更多还原