Department of Environmental and Biochemical Engineering, Sun Moon University, Asan, 31460, Republic of Korea.
Nanotechnology. 2020 Mar 6;31(10):104001. doi: 10.1088/1361-6528/ab5a13. Epub 2019 Nov 21.
Two different ceramic carbide nanoparticles (SiC, and TiC) were separately incorporated into the Ni-P matrix via the electroless deposition method. As prepared Ni-P, Ni-P-SiC, and Ni-P-TiC coatings were subjected to heat treatment at 400 °C for 1 h. The surface morphology, microstructural transformation, Vicker's microhardness, tribological and scratch resistance properties were studied with reference to the different carbide reinforcements as well as heat treatment. Inter-nodular space, craters and kinks are created due to the branching effect of nodules in the surface of the Ni-P-SiC (TiC) composite coatings. After the heat treatment, the matrix phase transformation was not altered due to the incorporation of SiC or TiC into the Ni-P coating; however, a slight increase in residual stress was identified from the XRD analysis. In addition, the content of carbon deposition was found to be higher in the matrix of Ni-P-SiC composite coating than that in the Ni-P-TiC coating. The agglomeration of SiC particles was higher than TiC particles in the coating matrix, which was also supported by the result of Zeta potential measurement. Heat treatment improved wear and coefficient of friction in the Ni-P-SiC and Ni-P-TiC composite coatings. Compared to Ni-P-SiC coating, Ni-P-TiC coating revealed the enhanced tribological and scratch resistance performance after the heat treatment.
两种不同的陶瓷碳化物纳米颗粒（SiC 和 TiC）分别通过化学镀方法掺入 Ni-P 基体中。所制备的 Ni-P、Ni-P-SiC 和 Ni-P-TiC 涂层在 400°C 下进行 1 小时热处理。参考不同的碳化物增强体以及热处理，研究了涂层的表面形貌、微观结构转变、维氏显微硬度、摩擦学和耐刮擦性能。由于结节的分支效应，在 Ni-P-SiC（TiC）复合涂层的表面会产生结节间空间、凹坑和扭结。热处理后，由于 SiC 或 TiC 掺入 Ni-P 涂层，基体相转变没有改变；然而，从 XRD 分析中发现残余应力略有增加。此外，在 Ni-P-SiC 复合涂层的基体中发现碳沉积的含量高于 Ni-P-TiC 涂层。在涂层基体中，SiC 颗粒的团聚程度高于 TiC 颗粒，这也得到了 Zeta 电位测量结果的支持。热处理改善了 Ni-P-SiC 和 Ni-P-TiC 复合涂层的磨损和摩擦系数。与 Ni-P-SiC 涂层相比，Ni-P-TiC 涂层在热处理后表现出增强的摩擦学和耐刮擦性能。
