Article ID Journal Published Year Pages File Type
10666544 Materials Letters 2005 5 Pages PDF
Abstract
The thermal behavior of (14−x)SrCO3-xCaCO3-24CuO system has been investigated using combined differential thermal analysis (DTA) and X-ray diffraction (XRD) measurements to get a better understanding of solid-state chemical changes resulting in the synthesis of spin-ladder compound Sr14−xCaxCu24O41. In the temperature region 900-1000 °C, the DTA curves present one and two endothermic peaks for x≤5.6 and x≥8.4, respectively. XRD measurements demonstrated that for x≤5.6, the solid-state reaction consists of three stages and leads to the formation of the single-phase Sr14−xCaxCu24O41. It is found that both XRD and DTA methods can be employed independently to determine the composition or temperature region in which the pure phase forms.
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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