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Optimization and kinetics of electroless Ni-P-B plating of quartz optical fiber

机译：石英光纤化学镀Ni-P-B的优化和动力学

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The preparation of Ni-P-B coatings on surface of quartz optical fibers was carried out using electroless plating method. The effects of the concentrations of nickel chloride, sodium hypophosphite, potassium borohydride, ethylenediamine, cadmium sulfate and temperature on the quality of Ni-P-B coatings were investigated by orthogonal experiment and their optimal values were determined to be: 0.1 mol L~(-1), 0.094 molL~(-1), 0.185 mol L~(-1), 0.36 mol L~(-1), 5.68 × 10~(-4)mol L~(-1) and 90 ℃, respectively. The effect of coarsening time of the naked fiber on the quality of Ni-P-B coatings was also researched and the optimal coarsening time was determined to be 15 min. Stereomicroscope, Scanning Electron Microscope and X-ray diffractometer were used to characterize the apparentness, morphology and structure of the prepared Ni-P-B coatings. Inductively Coupled Plasma-Atomic Emission Spectroscopy, Thermal Shock Method and Gravimetric Analysis Method were employed to analyze the composition, force of adhesion and solderability of the coatings, respectively. The results showed that a Ni-P-B coating with low surface roughness, good strength of adhesion, low resistivity and good solderability was successfully prepared. The kinetic models (Ni-P-B deposition rate equations) of the process were established as v=7.95×10~(-6)c_A~(0.830)c_b~(0.428)c_C~(0.288)c_D~(-0.645)c_E~(0.02)exp(298RT)/(26788(T-298));v=1.03×10~(-7)c_A~(0.830)c_B~(0.428)c_C~(-0.288)c_D~(-0.645)c_E~(-0.614)exp(298RT)/(26788(T-298)). exp26786^2981. The theoretical values calculated by the models were proved to be basically consistent with the practical measurements through experimental verification.
机译：使用化学镀方法在石英光纤的表面上制备Ni-P-B涂层。通过正交实验研究了氯化镍，次磷酸钠，硼氢化钾，乙二胺，硫酸镉的浓度和温度对Ni-PB涂层质量的影响，其最佳值确定为：0.1 mol L〜（-1 ），0.094 molL〜（-1），0.185 mol L〜（-1），0.36 mol L〜（-1），5.68×10〜（-4）mol L〜（-1）和90℃。还研究了裸纤维粗化时间对Ni-P-B涂层质量的影响，确定最佳粗化时间为15分钟。用立体显微镜，扫描电子显微镜和X射线衍射仪表征了制备的Ni-P-B涂层的外观，形貌和结构。分别采用电感耦合等离子体发射光谱法，热冲击法和重量分析法分别分析了涂层的组成，附着力和可焊性。结果表明，成功制备了具有低表面粗糙度，良好的粘合强度，低电阻率和良好的可焊性的Ni-P-B涂层。建立该过程的动力学模型（Ni-PB沉积速率方程）为v = 7.95×10〜（-6）c_A〜（0.830）c_b〜（0.428）c_C〜（0.288）c_D〜（-0.645）c_E〜 （0.02）exp（298RT）/（26788（T-298））; v = 1.03×10〜（-7）c_A〜（0.830）c_B〜（0.428）c_C〜（-0.288）c_D〜（-0.645）c_E 〜（-0.614）exp（298RT）/（26788（T-298））。 exp26786 ^ 2981。通过实验验证，模型计算出的理论值与实际测量值基本吻合。

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