Hydration of polyphase Ca 3 SiO 5 ‐Ca 3 Al 2 O 6 in the presence of gypsum and Na 2 SO 4
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Ca(4)IrO(6), Ca(3)MgIrO(6) and Ca(3)ZnIrO(6).
Single crystals of tetracalcium iridium hexaoxide, Ca(4)IrO(6), tricalcium magnesium iridium hexaoxide, Ca(3)MgIrO(6), and tricalcium zinc iridium hexaoxide, Ca(3)ZnIrO(6), were prepared via high-temperature flux growth and structurally characterized by single-crystal X-ray diffraction. The three compounds are isostructural and adopt the K(4)CdCl(6) structure type, comprised of chains of altern...
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We present low temperature Raman measurements on Ca3Co2O6. Shell model lattice dynamics calculations were done to determine the vibrational pattern of the expected Raman modes. In the temperature window 300K to 52K the mode frequencies and the full width at half maxima (FWHM) of the modes vary in an expected fashion, i.e., the mode frequencies shift to higher values and the FWHM decreases with ...
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ژورنال
عنوان ژورنال: Journal of the American Ceramic Society
سال: 2020
ISSN: 0002-7820,1551-2916
DOI: 10.1111/jace.17321