【摘要】 研究了镀液中硝酸银浓度、石墨粉加入量和阴极电流密度等工艺条件对镀银石墨粉含银量和电镀效果的影响。用扫描电镜对镀银石墨粉的微观形貌和镀覆效果进行分析,通过X射线衍射仪对镀银石墨粉高温灼烧后的剩余物进行分析测试并计算镀银石墨粉的含银量。研究结果表明:采用惰性电极作为电镀阳极,在化学镀预处理过的石墨粉表面可成功镀覆一层银,其含银量达76%。更多还原

【Abstract】 The effects of AgNO3 concentration,the amount of graphite powders and cathode efficiency on silver content and electroplating effect of the silver electroplating graphite powders were analyzed in detail.The microstructure of silver-plated graphite powders was characterized and analyzed by SEM.The remains of silver-plated graphite powders sintered at high temperature were analyzed through X-ray diffraction and the silver content was obtained.The results show that by using inert anode as positive pole,a fine and close silver layer could be electroplated on graphite powders which were pretreated by chemical plating method.The silver content of the product could reach 76%.更多还原