CAJ | 학술논문

开发了一种由含钼化合物、碘化钾以及邻苯二甲酸酐衍生物组成的复合添加剂BH，讨论了它对化学镀镍液稳定性、镀速以及镀层磷含量、硬度、孔隙率和微观形貌的影响。对测试化学镀镍液稳定性的PdCl2试验标准进行了改进：温度由80°C提高到90°C，PdCl2的浓度由0.1 g/L增加到1.0 g/L。研究结果显示，新标准检验的镀液稳定性差异能较好地反映实际生产中的镀液稳定性差异；当复合添加剂BH的添加量为2.0 mL/L时，化学镀镍层微观形貌得到较大的改善。经过新的PdCl2试验标准检验，该镀液可达到900 s不发生浑浊，镀速为24μm/h，镀层孔隙率0.57个/cm2，磷含量7.3%，硬度520 HV。
개발료일충유함목화합물、전화갑이급린분이갑산항연생물조성적복합첨가제BH，토론료타대화학도얼액은정성、도속이급도층린함량、경도、공극솔화미관형모적영향。대측시화학도얼액은정성적PdCl2시험표준진행료개진：온도유80°C제고도90°C，PdCl2적농도유0.1 g/L증가도1.0 g/L。연구결과현시，신표준검험적도액은정성차이능교호지반영실제생산중적도액은정성차이；당복합첨가제BH적첨가량위2.0 mL/L시，화학도얼층미관형모득도교대적개선。경과신적PdCl2시험표준검험，해도액가체도900 s불발생혼탁，도속위24μm/h，도층공극솔0.57개/cm2，린함량7.3%，경도520 HV。
A composite additive BH consisting of molybdenum-containing compound, potassium iodide, and phthalic anhydride derivative was developed, and its influence on the stability and deposition rate of electroless nickel plating bath, as well as the phosphorus content, hardness, porosity, and micro-morphology of deposit was discussed. The PdCl2 test standard used for determining stability of electroless nickel plating bath was improved as follows: increasing temperature from 80 °C to 90 °C and PdCl2 concentration from 0.1 g/L to 1.0 g/L. The results indicated that the difference of bath stability tested by the improved method has good relevance with that in practical production. The electroless nickel plating bath with composite additive BH 2.0 mL/L remains stable within 900 s without becoming turbid by testing based on the improved method and produces electroless nickel coatings with improved micro-morphologies at a deposition rate of 24μm/h.The electroless nickel coating obtained has a porosity 0.57 pores/cm2, phosphorus content 7.3%and hardness 520 HV.