锂钴复合氧化物涂层的显微组织结构  

Microstructure and Morphology of LiCoO_2 Coatings

作　　者：彭开萍[1] 陈文哲[1] 钱匡武[1] 

机构地区：[1]福州大学材料科学与工程学院,福建福州350002

出　　处：《材料保护》2006年第1期6-8,共3页Materials Protection

基　　金：福州大学科技发展基金资助XKJ(QD)-0115

摘　　要：为了更好地保护环境,以水作为溶剂,从有机和无机途径用溶胶凝胶法制备了具有耐蚀性能的LiCoO2的涂层。结果表明:两种途径制备的涂层在热处理过程中物相结构的变化是类似的,在干凝胶状态下为非晶态结构,400℃已晶化,物相为Li0.4CoO2;650℃涂层晶化已趋于完整,最终得到的涂层物相结构为LiCoO2。有机途径制备的锂钴复合氧化物涂层表面呈略有起伏的无规则岛状形貌,而无机途径的涂层表面较为致密平整。LiCoO_2 anticorrosion coatings were prepared using organic and inorganic sol-gel processes. The microstructures and morphologies of the coatings were investigated. The results showed that the coatings prepared from the two routes had similar phase transition during heat treatment. Namely, they had non-crystalline structure in dry gel state but were composed of crystallized Li_ 0.4CoO_2 and completely crystallized LiCoO_2 after being heat-treated at 400 ℃ and 650 ℃, respectively. Moreover, the coating prepared via organic route was characterized by island-like morphology, while that prepared via inorganic route had relatively dense and smooth morphology.

关 键 词：复合氧化物涂层 组织结构 溶胶-凝胶法 

分 类 号：TG174.44[金属学及工艺—金属表面处理]