Zhu Xinhe, Fu Jingguo, Ma Dengqing, Ma Chunsheng, Fu Yunyang, Zhang Zhuokai
Dalian Maritime University, Marine Engineering College, Liaoning Dalian, China.
Shenzhen Research Institute of Dalian Maritime University, Shenzhen, Guangzhou, China.
Sci Rep. 2022 Jan 19;12(1):995. doi: 10.1038/s41598-022-04768-0.
A composite ceramic coating containing h-BN particles was prepared on the ZL109 alloy via plasma electrolytic oxidation. The h-BN particles were modified by Polyethylene glycol to improve the dispersibility. The results revealed that the h-BN particles in the electrolyte were inertly incorporated into the coating. Meanwhile, the incorporation of h-BN particles can reduce the porosity and slightly increase the roughness of the composite ceramic coating. Furthermore, the growth rate of the coating and the conversion of γ-AlO and α-AlO were promoted by the incorporation of h-BN particles via the change of the current. In addition, due to the presence of h-BN particles, the composite ceramic coating had a lower friction coefficient and a lower wear rate under dry sliding condition.
通过等离子体电解氧化在ZL109合金上制备了含有六方氮化硼（h-BN）颗粒的复合陶瓷涂层。用聚乙二醇对h-BN颗粒进行改性以提高其分散性。结果表明，电解液中的h-BN颗粒被惰性地结合到涂层中。同时，h-BN颗粒的加入可以降低复合陶瓷涂层的孔隙率并略微增加其粗糙度。此外，通过电流变化，h-BN颗粒的加入促进了涂层的生长速率以及γ-AlO和α-AlO的转变。另外，由于h-BN颗粒的存在，复合陶瓷涂层在干滑动条件下具有较低的摩擦系数和磨损率。
