论文部分内容阅读
虽然钴因其硬度和耐磨性为人们熟知和被使用,但是在pH 1.5～2;Co~(2+)30～60g/l;电流密度100～500A/m~2;温度40～70℃的氯化物溶液中电解得到延展性钴却鲜为人知。对为何在这些条件下钴沉积物具有延展性的解释,尚未找到。实际上,在钴沉积物中延展性β(面心立方晶型)钴和氢的含量几乎和在硫酸盐介质中得到的钴沉积物所含的相同,而后者在相同电解条件下产生的却是脆性钴沉积物。在推荐的条件下能轻易得到延展性钴片.而这可能导致钴的新应用。
Although cobalt is well-known for its hardness and wear resistance and is used at pH 1.5-2; Co 2+ 30-60 g / l; current density 100-500 A / m 2; temperature 40-70 ° C The chloride solution electrolysis to obtain ductile cobalt is little known. The explanation of why maldiscipline is ductile under these conditions has not been found yet. In fact, the cobalt and hydrogen content of ductile beta (face-centered cubic) in cobalt deposits is almost the same as that contained in the cobalt deposits obtained in the sulphate medium, whereas the latter is produced under the same electrolysis conditions It is a brittle cobalt deposit. Ductile cobalt flakes can be easily obtained under the recommended conditions, which may lead to new applications of cobalt.