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Chemical Preparation of the Binary Compounds in the Calcia‐Alumina System by Self‐Propagating Combustion Synthesis
Author(s) -
Tas A. Cüneyt
Publication year - 1998
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1998.tb02706.x
Subject(s) - scanning electron microscope , materials science , ceramic , fourier transform infrared spectroscopy , rietveld refinement , combustion , self propagating high temperature synthesis , analytical chemistry (journal) , spectroscopy , mineralogy , phase (matter) , infrared spectroscopy , characterization (materials science) , nuclear chemistry , chemical engineering , microstructure , crystallography , crystal structure , chemistry , metallurgy , nanotechnology , composite material , organic chemistry , physics , quantum mechanics , engineering
The binary compounds Ca 3 Al 2 O 6 (C 3 A), Ca 12 Al 14 O 33 (C 12 A 7 ), CaAl 2 O 4 (CA), CaAl 4 O 7 (CA 2 ), and CaAl 12 O 19 (CA 6 ) in the CaO‐Al 2 O 3 system have been synthesized as high‐compound‐purity ceramic powders by using the self‐propagating combustion synthesis (SPCS) method. Materials characterization of the above‐mentioned phases was performed via powder X‐ray diffractometry (XRD), Fourier transform infrared spectroscopy, scanning electron microscopy, and energy‐dispersive X‐ray spectroscopy. The structural characterization of the C 12 A 7 phase has been performed via Rietveld analysis on the powdered XRD samples. It has hereby been shown that, by using this synthesis procedure, it should be possible to manufacture high‐purity ceramic powders of CA, CA 2 , and C 12 A 7 at 850°C, C 3 A at 1050°C, and CA 6 at 1200°C in a dry‐air atmosphere.