引用本文:贺涵,蒋业华,汝娟坚,华一新.ZTA陶瓷颗粒表面Ni-TiB2镀层的制备及工艺优化∗[J].中国表面工程,2021,34(3):159~167
He Han,Jiang Yehua,Ru Juanjian,Hua Yixin.Preparation and Process Optimization of Ni-TiB2 Coating on ZTA Particles[J].China Surface Engineering,2021,34(3):159~167
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ZTA陶瓷颗粒表面Ni-TiB2镀层的制备及工艺优化∗
贺涵1, 蒋业华1, 汝娟坚2, 华一新2
1.昆明理工大学材料科学与工程学院 昆明 650093;2.昆明理工大学冶金与能源工程学院 昆明 650093
摘要:
为了解决氧化锆增韧氧化铝( ZTA)陶瓷颗粒增强铁基复合材料制备过程中,ZTA 陶瓷颗粒与铁基体润湿性差的问题,在 ZTA 陶瓷颗粒表面镀覆 Ni-TiB2 镀层。 通过化学镀镍及电镀 Ni-TiB2 两步法,先在 ZTA 陶瓷颗粒表面化学镀镍得到具有导电性的 ZTA@ Ni 颗粒,再在 ZTA@ Ni 颗粒表面电镀均匀的 Ni-TiB2 复合镀层。 采用 XRD 对 ZTA、ZTA@ Ni 和 ZTA@ Ni-TiB2 颗粒进行物相分析;使用数码相机和 SEM 分别对 ZTA、ZTA@ Ni 和 ZTA@ Ni-TiB2 颗粒进行宏观及微观形貌观察;并利用 EDS 分析镀层中各个元素的质量百分比。 分别研究电镀液中 TiB2 粉末浓度、氯化胆碱 -乙二醇 ( ChCl-EG)浓度及沉积电压 3 种因素对 Ni-TiB2 复合镀层的成分及表面形貌的影响。 结果表明,在 1. 8 V 的沉积电压下,TiB2 粉末掺杂浓度为 6 g / L,ChCl-EG 的浓度为 9 g / L 时,Ni-TiB2 复合镀层平整均匀,无孔洞产生,镀层中的 TiB2 质量百分数可以达到 58. 22% ~ 64. 79%。
关键词:  ZTA 陶瓷颗粒  化学镀  电镀  Ni-TiB2 复合镀层  低共熔溶剂  共沉积
DOI：10.11933/j.issn.1007-9289.20210107001
分类号:TQ153
基金项目:国家自然科学基金资助项目(51571103)
Preparation and Process Optimization of Ni-TiB2 Coating on ZTA Particles
He Han1, Jiang Yehua1, Ru Juanjian2, Hua Yixin2
1.School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 , China;2.School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093 , China
Abstract:
In order to solve the problem of poor wettability between the zirconia toughened alumina (ZTA) particles and the iron matrix during the preparation of ZTA particles reinforced iron matrix composite, the surface of ZTA particles is plated with Ni-TiB2 coating. The Ni-TiB2 coating is prepared by the two-step method of electroless nickel plating and Ni-TiB2 electroplating. Firstly, the nickel coating is electroless plated on the surface of ZTA particles to obtain conductive ZTA@ Ni particles, and then the uniform Ni-TiB2 composite coating is electroplated on the surface of ZTA@ Ni particles. The phases of ZTA, ZTA@ Ni and ZTA@ Ni-TiB2 particles were analyzed by X-ray diffraction (XRD). In addition, the macro and micro morphologies of ZTA, ZTA@ Ni and ZTA@ Ni-TiB2 particles are observed by digital camera and scanning electron microscope ( SEM). Moreover, the element contents in Ni-TiB2 coating are investigated by energy disperse spectroscopy (EDS). The effects of TiB2 powder concentration, choline chloride glycol (ChCl-EG) concentration and deposition voltage in the electroplating bath on the composition and surface morphology of Ni-TiB2 composite coating are studied, respectively. When the TiB2 pouder doping concentration is 6 g / L, the ChCl-EG concentration is 9 g / L and the deposition voltage is 1. 8 V, the flat and uniform coating without pores is obtained, and the weight percentage of TiB2 in the coating can reach 58. 22%-64. 79%.
Key words:  ZTA particles  electroless plating  electroplating  Ni-TiB2 composite coatings  deep eutectic solvent  co-deposition
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