双钙钛矿La_2NiMnO_6多晶靶材的制备及结构表征  

Fabrication and Properties of La_2NiMnO_6 Polycrystalline Targets

作　　者：刘冬梅[1] 李小兵[2] 秦赛[2] 朱明[2] 

机构地区：[1]东南大学成贤学院基础部,江苏南京210088 [2]东南大学物理系,江苏南京210096

出　　处：《化工时刊》2013年第7期14-17,共4页Chemical Industry Times

摘　　要：通过固相烧结法制备了符合脉冲激光沉积(PLD)镀膜所用的双钙钛矿La2NiMnO6多晶靶材。利用热重—差热分析仪(TG-DTA)分析了La2NiMnO6多晶靶材成相过程及热学性质,并用X射线衍射仪(XRD)和偏光显微镜对不同烧结温度下制备的La2NiMnO6多晶靶材的相组成和形貌结构进行了表征。结果表明,烧结温度到达700℃之后La2NiMnO的晶粒成相基本完成,其最优化烧结温度约为1 100℃。Polyerystalline targets La2NiMnO6 with high purity, single phase and meeting these requirements of PLD coating were fabrieated by solid - state method. The TG - DSC results showed that the perovskite phase had well been formed at 700℃. The polarizing mieroseope and the X -ray Diffraetion （XRD） were used to analyze the miero- strueture and the figure of the La2NiMnO6 samples. It was found that the optimal sinter temperature of La2NiMnO6 with high purity and single phase was gained at 1 100℃.

关 键 词：双钙钛矿 La2NiMnO6 多晶靶材 烧结温度 

分 类 号：O484.1[理学—固体物理]