Ti/IrO_2涂层阳极热氧化处理温度的选择  

Selection of Oxidative Thermal Treatment Temperature of Ti/IrO 2 Coating Anodes

作　　者：潘会波[1] 刘宏[1] 焦文强[1] 

机构地区：[1]西北有色金属研究院

出　　处：《稀有金属材料与工程》1999年第1期50-52,共3页Rare Metal Materials and Engineering

摘　　要：结合铝的表面处理和铜的生箔对阳极的要求，针对Ｔｉ／ＩｒＯ２阳极，用热差分析、电极极化、Ｘ光衍射及强化寿命试验，研究了热氧化处理温度对阳极的热分析曲线、电极电位、相结构和强化寿命的影响。在３０％Ｈ２ＳＯ４（质量比），４Ａ／ｃｍ２，４０℃±５℃下的强化寿命实验表明：小于５００℃时，阳极的寿命受涂层的溶蚀控制。大于６００℃，阳极的破坏形式以涂层脱落为主，而涂层在５００℃～６００℃之间处理的阳极的强化寿命最长，Ｔｉ／ＩｒＯ２涂层阳极的热氧化处理温度以５００℃～６００℃为最佳。In order to meet a demand of aluminum surface treatment and copper foil deposition for anodes, the effect of oxidative thermal treatment temperature on thermoanalytical curve, electrode potential, phase structure and strengthening lifetime of Ti/IrO 2 have been studied using thermogravimetry analysis, electropolarized, x ray diffraction and strengthening lifetime experiments. The strengthening lifetime was tested in a solution of 30% H 2SO 4 (weight ratio) at 4A/cm 2 and 40℃±5℃. The results show that the lifetime of an anode made at less than 500℃ is controlled by corrosion of the coating. Peeling of the coating is a major cause of damage for anodes made at temperatures higher than 600℃. The coating made at 500℃～600℃ has the longest lifetime. Optimal oxidative thermal treatment temperature is in the range 500℃ to 600℃ for Ti/IrO 2 coating anode.

关 键 词：涂层 阳极 热氧化处理温度 氧化钌 钛 氯碱工业 

分 类 号：TQ114.14[化学工程—无机化工]