溶胶凝胶法制备TGG纳米粉体与结构研究  

Preparation and Structure of TGG Nanopowders by Sol-gel Method

作　　者：沈正皓 吴以恒[1] 张丽萍[1] 刘洪伟[1] 李春[1] SHEN Zhenghao WU Yiheng ZHANG Liping LIU Hongwei LI Chun(School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022)

机构地区：[1]长春理工大学材料科学与工程学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2017年第3期112-116,共5页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：国防科工局项目(221887);吉林省科技厅项目(20160414043GH;20170101090JC)

摘　　要：采用溶胶凝胶法制备TGG纳米粉体,利用XRD、TG-DSC、IR和SEM等测试手段分析了TGG纳米粉体的物相结构。结果表明:TGG纳米粉体属于立方晶系,在1000℃和1100℃下烧结的样品,颗径尺分别为80nm和100nm。1000℃附近出现的失重是因为发生了相变过程,生成了TGG晶相,通过红外光谱和拉曼光谱对TGG粉体的振动模式进行了归属。TGG nanopowders were prepared by sol-gel method. The phase structure of TGG nanopowders was investigated by XRD,TG-DTA,IR and SEM,etc. The results indicated that TGG nanopowders belong to cubic-phase system. The TGG crystal phase appeared during the phase transition process,which leads to the absorption peaks occurring from 1000℃ to 1100℃. The vibration modes of Tb-O-Ga bond were pointed out by IR spectra. The particle size of the samples sintered at 1100℃ is about 100 nm.

关 键 词：溶胶凝胶法 TGG纳米粉体 物相结构 

分 类 号：TB321[一般工业技术—材料科学与工程]