研究了硫酸盐镀镍电解液中1,4-丁炔二醇对电解液电流效率、分散能力、阴极极化及镍镀层光亮度、硬度及内应力的影响.采用扫描电镜和X-射线衍射分析表征了镍镀层表面形貌和微观结构.结果表明,1,4-丁炔二醇的加入使镍镀层的光亮度有所改善,但达不到镜面光亮；而对电解液的电流效率、分散能力影响不大；当ρ(1,4-丁炔二醇)达0.3 g/L时,镍镀层的硬度逐渐减小,镍镀层的拉应力则先增大后略有降低；继续增加1,4-丁炔二醇的质量浓度,镍镀层的硬度和拉应力随之增大；在较低的过电位下1,4-丁炔二醇能够显著增加镍沉积的电位,细化镍镀层晶粒尺寸,使其表面更加平滑；呈现出(200)面择优取向.
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