Effect of BaHfO3:Ce Powders Activation Energy on Sintering Transparency

IMR OpenIR

	Effect of BaHfO3:Ce Powders Activation Energy on Sintering Transparency
其他题名	Effect of BaHfO_3∶Ce Powders Activation Energy on Sintering Transparency
	Shi ShuJun; Ma WeiMin; Ma Lei; Sun Yang; Li XiaoLong; Han Feng; Guan RenGuo
	2014
发表期刊	CHINESE JOURNAL OF INORGANIC CHEMISTRY
ISSN	1001-4861
卷号	30 期号:4 页码:885-894
摘要	BaHfO3:Ce powders were prepared by normal strike co-precipitation(NSC) method and reverse strike co-precipitation(RSC) method respectively. The phase composition, particle morphology and luminescence properties of BaHfO3:Ce powders were characterized by XRD, TG-DTA and SEM. The effect of different precipitation methods on synthesis kinetics of particle was investigated at different heating rates. The results show that the precursors prepared by NSC and RSC decompose in three stages. The apparent activation energy of each stage is calculated using the Doyle-Ozawa and Kissinger methods. The average apparent activation energies of the three reaction stages of precursors prepared by NSC and RSC are 83.41, 61.70, 262.11 kJ.mol(-1) and 81.70, 42.86, 253.44 kJ.mol(-1) respectively. The activation energies of grain growth for BaHfO3:Ce powders prepared by NSC and RSC are 27.36 kJ.mol(-1) and 23.07 kJ.mol(-1) severally. The powder prepared by RSC method exhibits excellent luminescence properties with higher intensity of excitation spectrum excited by 530nm and emission spectrum excited by 399 nm. The BaHfO3:Ce ceramic is partly transparent after being sintered at 2 073 K in vacuum for 3 h.
关键词	DIFFERENTIAL THERMAL-ANALYSIS PARTICLE-SIZE CERAMICS NANOPHOSPHOR TEMPERATURE KINETICS BaHfO3:Ce co-precipitation activation energy spectroscopy vacuum sintering
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:5113977
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/86928
专题	中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	Shi ShuJun,Ma WeiMin,Ma Lei,et al. Effect of BaHfO3:Ce Powders Activation Energy on Sintering Transparency[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2014,30(4):885-894.
APA	Shi ShuJun.,Ma WeiMin.,Ma Lei.,Sun Yang.,Li XiaoLong.,...&Guan RenGuo.(2014).Effect of BaHfO3:Ce Powders Activation Energy on Sintering Transparency.CHINESE JOURNAL OF INORGANIC CHEMISTRY,30(4),885-894.
MLA	Shi ShuJun,et al."Effect of BaHfO3:Ce Powders Activation Energy on Sintering Transparency".CHINESE JOURNAL OF INORGANIC CHEMISTRY 30.4(2014):885-894.