论文标题
部分可观测时空混沌系统的无模型预测
Properties of ZnO/ZnAl$_2$O$_4$ composite PEO coatings on zinc
论文作者
论文摘要
最近显示了在磷酸盐铝酸电解质中成功形成的PEO涂层。生产的复合涂料包含各种ZnO和Znal $ _2 $ o $ $ _4 $的混合物。在当前研究的框架中，分析了形成的涂层的特性，包括粘附/凝聚力，磨损，腐蚀和光催化活性，以识别可能的应用。但是，涂层显示内部孔隙度和海绵状结构。因此，涂层内的凝聚力很低。拉力测试表明，PEO层内的明显破裂，强度值低至1 MPa。尽管在较短的治疗时间内形成了较高量的ZnO，但光催化活性受到限制。有趣的是，ZnO的复合涂料和更高量的Znal $ _2 $ o $ _4 $ spinel显示出更高的活动，但不足以快速有效的催化清洁应用。
Recently the successful formation of PEO coatings on zinc in a phosphate aluminate electrolyte was shown. The produced composite coatings contain various mixtures of ZnO and ZnAl$_2$O$_4$. In frame of the current study, the properties of the formed coatings including adhesion/cohesion, wear, corrosion and photocatalytic activity were analysed to identify possible applications. However, the coatings show internal porosity and a sponge-like structure. Thus the cohesion within the coating is quite low. Pull-off tests have demonstrated clear rupture within the PEO layer at strength values as low as 1 MPa. The photocatalytic activity is limited, in spite of the formation of a higher amount of ZnO at shorter treatment times. Interestingly, the composite coatings of ZnO and higher amounts of ZnAl$_2$O$_4$ spinel showed a higher activity, but not sufficient for fast and effective catalytic cleaning applications.
