纳米碳化硅表面修饰的工艺研究及结构表征-《电镀与精饰》

文章信息/Info

Title:: Process Research and Structure Characterization on the Surface Modification of Nano-( SiC)_P

摘要:: 针对(SiC)P纳米微粒在应用中存在的易团聚、材料间相容性差等关键技术问题,采用化学镀方法对(SiC)P纳米微粒进行了表面修饰。设计了实验方案,优化了工艺参数。实验结果表明,预处理过程、镀液的温度、pH等对修饰效果影响较大。确定适合的工艺参数,镀液θ为45℃、pH为9.0。电子显微镜、能谱仪等仪器表征显示,修饰后的SiC微粒近球形,形貌均匀,有明显的核、壳部分,核壳处不同的衬度表明(SiC)P微粒表面沉积了较多的金属Ni,形成了碳化硅-镍核壳结构复合粒子。

Abstract:: In order to avoid the critical technical problems,such as easy to agglomerate and bad compatibility between the materials,existing in the application of nano-( SiC)P,surface modification was conducted on the( SiC)P particulate by electroless plating in this paper. The experimental project was designed and the process parameters were optimized. The results showed that the modification effects were greatly affected by the pre-treatment,temperature and pH value of the electrolyte. The optimized process parameters were finally fixed as follows: temperature 45℃ and pH value of the electrolyte 9. The morphology and composition of the modified( SiC)P particulate was characterized by SEM and EDS. The results revealed that the modified SiC particles showed spherical like and uniform appearance with obvious core and shell parts. Large amount of metal Ni were deposited on the surface of( SiC)P particulate and SiC-Ni composite particulates with core-shell structure were formed.