Abstract
Thermal decomposition processes in mixtures of Ca : Cu = 1 : 1 nitrate powders produced by a conventional technique and by freeze drying method have been investigated by thermal analysis and X-ray diffraction. Results have been compared with literature values and data obtained by our investigations of individual calcium and copper nitrates. Temperatures at which decomposition processes occur change with by ±30°C and depend also on the level of mixing of the nitrates. An exemption is the temperature for CuO phase formation, which was determined for the Cu-nitrate and for both 1 : 1-nitrate powders to be at 266°C. The domains of stability for different phases are shown to be variable. Also, for 1 : 1-powders, α-type and β-type Ca(NO3)2 · 2H2O phases coexist, while in Ca-nitrate only the α-type phase was observed.
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Badica, P., Aldica, G. & Crisan, A. Decomposition of Ca : Cu = 1 : 1 nitrate powder: thermal analysis and structural studies. Journal of Materials Science 37, 585–594 (2002). https://doi.org/10.1023/A:1013777826319
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DOI: https://doi.org/10.1023/A:1013777826319