(14-x)SrCO3-xCaCO(3)-24CuO system to synthesize spin-ladder compounds Sr14-xCaxCu24O41 using DTA and XRD techniques

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	(14-x)SrCO3-xCaCO(3)-24CuO system to synthesize spin-ladder compounds Sr14-xCaxCu24O41 using DTA and XRD techniques
	Y. Zeng; F. S. Pan; Z. X. Yu; R. Xiong; J. Shi
	2005
发表期刊	Chinese Journal of Chemical Physics
ISSN	1003-7713
卷号	18 期号:4 页码:614-618
摘要	The (14 - x) SrCO3-xCaCO(3)-24CuO system was investigated by means of differential thermal analysis (DTA) technique combined with the powder X-ray diffraction (XRD) technique, and the relationship of its thermal behavior with the synthesis of spin-ladder compound Sr14-xCaxCu24O41 was first analyzed in detail. It is found that the DTA curve (x <= 5.6) exhibits two endothermic peaks and could be divided into three reaction stages, corresponding to the solid state reaction to synthesize single-phase Sr14-xCaxCu24O41. The DTA curve (x >= 8.4) shows three big endothermic peaks below 1000 degrees C. The intensity and the position of the first endothermic peak around 800 degrees C is depending on the content of CaCO3 in the system, while the third endothermic peak is the crucial factor of the synthesis of single-phase compound.
部门归属	wuhan univ, dept phys, wuhan 430072, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;xiong, r (reprint author), wuhan univ, dept phys, wuhan 430072, peoples r china;xiongrui@whu.edu.cn jshi@whu.edu.cn
关键词	Solid State Reaction Powder X-ray Diffraction Differential Thermal Analysis Phase Transformation Sro-cao-cuo Phase-relationships
URL	查看原文
WOS记录号	WOS:000231767800029
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35194
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Zeng,F. S. Pan,Z. X. Yu,et al. (14-x)SrCO3-xCaCO(3)-24CuO system to synthesize spin-ladder compounds Sr14-xCaxCu24O41 using DTA and XRD techniques[J]. Chinese Journal of Chemical Physics,2005,18(4):614-618.
APA	Y. Zeng,F. S. Pan,Z. X. Yu,R. Xiong,&J. Shi.(2005).(14-x)SrCO3-xCaCO(3)-24CuO system to synthesize spin-ladder compounds Sr14-xCaxCu24O41 using DTA and XRD techniques.Chinese Journal of Chemical Physics,18(4),614-618.
MLA	Y. Zeng,et al."(14-x)SrCO3-xCaCO(3)-24CuO system to synthesize spin-ladder compounds Sr14-xCaxCu24O41 using DTA and XRD techniques".Chinese Journal of Chemical Physics 18.4(2005):614-618.