NiB and Ni-B/CeO₂ coatings were deposited by the electroless deposition method using a bath containing nickel sulfate hexahydrate, dimethylamine borane, and sodium acetate. Instead of lead and tantalum-based stabilizers, thiourea was used as the stabilizing agent for an environmentally friendly and cost-effective process. Different amounts of submicron CeO₂ particles were used as reinforcement for composite coatings. The main aim is to investigate the effects of CeO₂ particles on the structural properties, hardness, crystallite size, strain, and tribological behavior of coatings. Surface analysis of pure NiB and Ni-B/CeO₂ composite coatings was performed by scanning electron microscope (SEM) device equipped with energy-dispersive spectroscopy (EDS) attachment. Cross-section examinations were carried out by field emission scanning electron microscopy (FESEM). Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to obtain the nickel and boron percentages in the coating. X-ray diffraction (XRD) was applied to analyze phase structures of the coatings, nanohardness measurements of coatings were performed by nanoindenter, and wear tests were performed with a ball-on-disc test device. Roughness measurements and worn surface analyses were performed using a 3D profilometer. Experimental results showed that the CeO₂ particle concentration in the plating bath of 10 g/l is the optimum amount to provide a noticeable enhancement in hardness and wear resistance compared to the other composites.

Ni B 和 Ni-B/CeO ₂涂层通过化学沉积方法沉积，使用含有六水合硫酸镍、二甲胺硼烷和乙酸钠的镀液。代替铅和钽基稳定剂，硫脲被用作环境友好且具有成本效益的工艺的稳定剂。不同量的亚微米CeO ₂颗粒被用作复合涂层的增强剂。主要目的是研究CeO ₂颗粒对涂层结构特性、硬度、微晶尺寸、应变和摩擦学行为的影响。纯 Ni B 和 Ni-B/CeO _{2 的}表面分析复合涂层是通过配备有能量色散光谱 (EDS) 附件的扫描电子显微镜 (SEM) 设备进行的。通过场发射扫描电子显微镜（FESEM）进行横截面检查。电感耦合等离子体发射光谱 (ICP-OES) 用于获得涂层中镍和硼的百分比。应用 X 射线衍射 (XRD) 分析涂层的相结构，通过纳米压痕仪进行涂层的纳米硬度测量，并使用球盘测试装置进行磨损测试。粗糙度测量和磨损表面分析使用 3D 轮廓仪进行。实验结果表明，CeO ₂ 与其他复合材料相比，镀液中 10 克/升的颗粒浓度是显着提高硬度和耐磨性的最佳量。