【摘要】 通过对Ni B纳米SiC及Ni P纳米SiC化学复合镀工艺的研究,发现纳米碳化硅微粒的共沉积对复合镀层的结构有影响,非晶态的合金镀层在纳米微粒共沉积的条件下向晶态结构转变,复合镀层基体以镍的晶态形式出现。通过镀覆工艺参数的调节,控制复合镀层基体结构,促使其逐渐向非晶态过渡。结合XRD、电子探针等检测手段,探讨了影响这一结构变化过程的工艺因素及其内在机制。更多还原

【Abstract】 SiC nano particles reinforced Ni-B and Ni-P composite coatings prepared by electroless plating are studied. It shows that SiC co-deposition changes the structure of matrix in as-plating coatings. The composite coatings transform from amorphous into crystal when nano SiC was added to the plating bath. The matrix of composite coatings is turned into amorphous structure again after some technologic factors are adjusted. The mechanism for this has been discussed on the bases of XRD and electron probing tests.更多还原