摘要
利用电镀法制备了锑微电极,并对其性能进行了检测。所研制锑微电极的稳定性好、响应速度快、pH值敏感性高(35~40mV/pH),在高温酸性化学镀镍溶液中有较长的连续使用寿命。将该微电极用于化学镀镍体系中反应界面区pH值的原位测量,测得了化学镀镍过程中反应界面区pH值的波动,其最大波动幅值达1~2个pH值,为解释化学镀镍磷合金镀层层状结构的成因提供了可靠的实验基础。
Sb microelectrodes were prepared by plating. The results of testing show that they have excellent stability, quick responding speed, high pH sensitivity (35~40 mV/pH) and long service life in high temperature acidic Electroless Nickel (EN) bath. By using Sb microelectrode, the pH value in EN reaction interface was measured in situ . There exists the fluctuation of pH value, as EN plating continuing, the amplitude of fluctuation tends to decrease. The largest fluctuation amplitude can reach 1~2 pH value. The in situ pH measurement provides reliable experimental results for explaining the formation of EN layer structure deposit.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
1998年第6期414-417,共4页
Chinese Journal of Rare Metals
关键词
化学镀镍
锑微电极
PH值
反应界面
原位测量
Sb microelectrode, In situ pH measurement, Electroless nickel, Reaction interface