CAJ | 학술논문

在测定Ni?金刚石复合电沉积体系阴极极化曲线、电化学阻抗谱及微分电容曲线等基础上，分析了温度对界面双电层的影响规律，推断出金刚石微粒复合量随温度升高的变化趋势，以此探讨温度在Ni?金刚石复合电沉积中的电化学行为。结果表明：随镀液温度沿30℃→40℃→60℃升高，Ni?金刚石复合体系的阴极极化减小，法拉第电阻沿17.3?→5.2?→3.0?降低，双电层电容沿40.8μF→141.2μF→175.6μF增加，同时，阴极表面在析出电位附近的负电荷密度逐渐增加。电化学测试结果表明：金刚石微粒复合量将随温度的升高而降低，且工艺实验与电化学测试结果也映证这一点。
재측정Ni?금강석복합전침적체계음겁겁화곡선、전화학조항보급미분전용곡선등기출상，분석료온도대계면쌍전층적영향규률，추단출금강석미립복합량수온도승고적변화추세，이차탐토온도재Ni?금강석복합전침적중적전화학행위。결과표명：수도액온도연30℃→40℃→60℃승고，Ni?금강석복합체계적음겁겁화감소，법랍제전조연17.3?→5.2?→3.0?강저，쌍전층전용연40.8μF→141.2μF→175.6μF증가，동시，음겁표면재석출전위부근적부전하밀도축점증가。전화학측시결과표명：금강석미립복합량장수온도적승고이강저，차공예실험여전화학측시결과야영증저일점。
Based on the study about cathodic potentiodynamic diagrams, electrochemical impedance diagrams and differential capacitance curves, the effect of temperature on diffuse double layer was analyzed, and then the change of particle content in the deposits along with temperature was judged. And the electrochemical action of temperature in Ni-diamond composite electrodeposition was discussed. The results show that, with temperature increasing from 30℃, 40 ℃ to 60 ℃, the cathodic potentiodynamic of composite system decreases. At the same time, Faraday resistance decreases from17.3?, 5.2?to 3.0?, the electric double layer capacitance increases from 40.8 μF, 141.2 μF to 175.6 μF. The negative charge density on cathodic surface increases near deposition potential. The electrochemistry testing experiment data indicate that the content of particles in the deposits decreases with the increase of temperature. The technics experiment confirms it well.