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钛阳极是广泛应用于电化学工业的电极材料,但失效分析方法还未在此特殊材料上得到应用。作为福建省自然基金研究项目,我们系统地分析了阳极的失效现象、原因及解决方法。 1.短路失效:短路失效与电解液杂质有关,特别是其中的重金属离子和铁、钙、镁等化合物的阴极吸附常缩短阴阳极距,最终短路击穿。防止这类失效,除设计操作外,在涂层中加入TiO_2层有明显效果。 2.剥落失效:表面涂层的片状剥落,造成电力线重新分布,电位升高。这种常见的
Titanium anodes are widely used as electrode materials in the electrochemical industry, but failure analysis methods have not been applied to this particular material. As a natural fund research project in Fujian Province, we systematically analyzed the anodic failure phenomena, causes and solutions. 1. Short circuit failure: short circuit failure and electrolyte impurities, especially in which the heavy metal ions and iron, calcium, magnesium and other compounds of the cathode adsorption often shorten the anode and cathode spacing, and ultimately short-circuit breakdown. To prevent such failures, in addition to the design and operation, the coating added TiO_2 layer has a significant effect. 2. Spalling failure: flaking surface coating flaking, causing the redistribution of power lines, the potential increase. This is common