(1. 福州大學(xué) 物理與信息工程學(xué)院，福州 350108；
2. 福州大學(xué) 材料研究所，福州 350108)
摘 要: 采用熱分解法在500 ℃制得Ru-Ti和Ir-Ta不同組合涂層的鈦陽極，通過XRD和SEM測試手段分析陽極涂層的顯微形貌和相組織。結(jié)果表明：Ti/Ir-Ta/Ru-Ti的涂層物相為IrO2和金紅石結(jié)構(gòu)的(Ti,Ru)O2、(Ru, Ti)O2；Ti/Ru-Ti/Ir-Ta的涂層除有上述物相之外，還有銳鈦礦相；Ti/Ru-Ti-Ir-Ta的涂層物相為金紅石結(jié)構(gòu)的(Ti,Ru,Ir)O2和(Ir,Ti,Ru)O2；鉭元素以非晶態(tài)形式存在；不同尺寸離子的協(xié)調(diào)分布有助于減小晶格畸變；涂層的顯微形貌具有組織外延性生長特點(diǎn)，Ti/Ir-Ta/Ru-Ti陽極的形貌主要表現(xiàn)為蜂窩狀，Ti/Ru-Ti/Ir-Ta和Ti/Ru-Ti/Ir-Ta陽極的形貌主要表現(xiàn)為泥裂狀。
關(guān)鍵字: Ru-Ti；Ir-Ta；鈦陽極；組織形貌
different combinations from Ru-Ti and Ir-Ta
（1. College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China;
2. Institute for Materials Research, Fuzhou University, Fuzhou 350108）
Abstract: Titanium anodes with different combinations from Ru-Ti and Ir-Ta were prepared by thermal decomposition at 500 ℃. The morphologies and phase structures of the titanium anode coating were analyzed by XRD and SEM techniques. The results show that the phases of Ti/Ir-Ta/Ru-Ti anode coating are IrO2, rutile-type solid solution (Ti,Ru)O2 and (Ru, Ti)O2. The Ti/Ru-Ti/Ir-Ta anode coating contains anatase TiO2 besides phases hereinbefore. The phases of Ti/Ru-Ti-Ir-Ta anode coating are rutile-type solid solution (Ti,Ru,Ir)O2 and (Ir,Ti,Ru)O2. Tantalum exists in the coatings with the form of non-crystalline. The crystal lattice distortion decreases with the harmonious distribution of the different size ions. The formations of coatings possess characteristics of the structural epitaxial growth. The morphology of Ti/Ir-Ta/Ru-Ti anode is beehive-liked structure. The morphologies of Ti/Ru-Ti/Ir-Ta and Ti/Ru-Ti/Ir-Ta anode are dry cracked-mud like.
Key words: Ru-Ti; Ir-Ta; titanium anode; structure and morphology
