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Preparation and Crystallization of Sol‐Gel Calcia–Alumina Compositions
Author(s) -
Goktas A. Aydin,
Weinberg Michael C.
Publication year - 1991
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.1151-2916.1991.tb04344.x
Subject(s) - crystallization , amorphous solid , materials science , aluminate , sol gel , chemical engineering , mineralogy , composite material , chemistry , crystallography , cement , nanotechnology , engineering
The preparation of several amorphous calcium aluminate compositions by the sol‐gel procedure is reported. Although a broad composition range of amorphous gels could be prepared, they invariably crystallized when heated to sufficiently high temperatures. The crystallization behavior of bulk samples and thin gel films on SiO 2 slides were studied with the aid of XRD. Also, IR spectra were obtained from room‐temperature and heated gels in order to evaluate the transformation which the gels underwent upon heating.