论文摘要
Oxide powders of Zr1-xTixO2（x=0-1）solid solutions with micron-sized particles were synthesized via a solution combustion method.The synthesis process and Zr/Ti molar ratio were optimized to produce powders with the tetragonal crystal structure.X-ray diffraction,Raman spectroscopy and transmission electron spectroscopy results confirm that a full crystallization microstructure with the single tetragonal phase is obtained after calcination at 600℃ while maintaining the crystallite size<30 nm.Zr/Ti oxide mixtures with Zr≥67 mol% exhibit a tetragonal crystal structure and the embedding Ti in ZrO2 improves the structure stability.The nitrogen sorption results indicate that the powders possess mesoporous morphology with medium specific surface areas（～10-50 m2/g）.Chemical stability tests show that these powders are relatively stable with negligible removal of titanium and zirconium after elution by 0.5 mol/L HCl.Density functional theory was used to calculate the most stable structure with low energy for the selected composition.
论文目录
文章来源
类型: 期刊论文
作者: Linggen Kong,Inna Karatchevtseva,Hanliang Zhu,Meng Jun Qin,Zaynab Aly
来源: Journal of Materials Science & Technology 2019年09期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 无机化工
单位: Nuclear Fuel Cycle Research, Australian Nuclear Science and Technology Organisation
分类号: TQ134.11
页码: 1966-1976
总页数: 11
文件大小: 1251K
下载量: 1