等离子喷涂法制备Ti/Ti_4O_7+TiB_2/PbO_2阳极材料的性能研究  

Performance Study of Ti/Ti_4O_7+TiB_2/PbO_2 Anode Material Prepared by Plasma Spraying

作　　者：范农杰 竺培显[1] 周生刚[1] 韩朝辉[1] 

机构地区：[1]昆明理工大学材料科学与工程学院,云南昆明650093

出　　处：《热加工工艺》2016年第4期120-122,共3页Hot Working Technology

基　　金：国家自然科学基金项目(51074082;51264025;51201080);国家科技部"863计划"项目(2009AA03Z512);云南省应用基础研究项目(KKSY201251086)

摘　　要：用等离子喷涂法在钛基体上喷涂一层Ti_4O_7和TiB_2的混合物作为中间过渡层,以提高钛基体的耐蚀性能、改善钛基体的导电性;然后在Ti/Ti_4O_7+TiB_2中间过渡层上电镀PbO_2活性层,从而制备出一种新型的"三明治"结构的钛阳极。实验结果表明:喷涂后的钛基体主要由TiO_2、Ti_4O_7和TiB_2三种物相组成;TiB_2的加入能够显著提高Ti/Ti_4O_7的导电性;当TiB_2含量为15%左右时,该电极材料的电化学性能达到最佳。In order to increase the corrosion resistance and improve the conductivity of titanium substrate, an intermediate layer of Ti4O7 and TiB2 coating on a titanium substrate was obtained by plasma spraying. Then PbO2 active layer was plated on the intermediate layer. Thereby a new type of ＂sandwich＂ titanium anode was prepared. The result shows that titanium substrate after plasma spraying is mainly composed of TiO2, Ti4O7 and TiB2, and TiB： can significantly improve the conductivity of Ti/Ti4O7. When adding about 15%TiB2 content, electrochemical properties of the electrode material is best.

关 键 词：等离子喷涂 钛阳极 中间过渡层 导电性 电化学性能 

分 类 号：TG146[一般工业技术—材料科学与工程]