论文标题
通过PEO优化氧化铝涂层的同素异形和硬度
Optimization of allotropic and hardness of aluminum oxide coating by PEO
论文作者
论文摘要
生产材料和氧化物涂料的最重要方法之一是血浆电解氧化（PEO）。 PEO方法上铝制的涂料具有两个同素异形，分别为$α$ -AL $ _2 $ o $ _3 $和$γ$ -AL $ _2 $ o $ $ _3 $。包含$α$ -AL $ _2 $ o $ $ _3 $的涂料具有更大的硬度和耐磨性；因此，本研究的主要目的是优化氧化铝同素异形，以增加用PEO方法制成的涂层$α$ -AL $ _2 $ _3 $ _3 $。本研究的结果表明，最高阶段的最佳电解质化合物的$α$ -AL $ _2 $ o $ $ _3 $具有2.9 g/lit koH，1.15 g/lit的Na4p2O7和0.34 g/lit naalo2的Naalo2和最高零件的最高比例的最高同量$ -AL $ -AL $ -AL $ _AL $ o; $γ$ -AL $ _2 $ o $ _3 $（在XRD测试中）在最佳条件下为0.622，硬度为1648 Vickers。
One of the most important methods of producing materials and oxide coating is plasma electrolytic oxidation (PEO). Coatings made on aluminum in PEO method have two allotropes of $α$-Al$_2$O$_3$ and $γ$-Al$_2$O$_3$. Coatings containing $α$-Al$_2$O$_3$ have more hardness and wear resistance; therefore, the main goal of the present study is to optimize aluminum oxide allotrope for increasing the ratio of $α$-Al$_2$O$_3$ in coating made with PEO method. Results of the present study shows that the optimum electrolyte compound for making highest phase of $α$-Al$_2$O$_3$ has 2.9 g/lit of KOH, 1.15 g/lit of Na4P2O7, and 0.34 g/lit of NaAlO2 and ratio of highest allotropic pick of $α$-Al$_2$O$_3$ to highest allotropic pick of $γ$-Al$_2$O$_3$ (in XRD test) in the optimum condition is 0.622 and hardness is 1648 Vickers.
