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MULLITIZATION OF KAOLINITE *
Author(s) -
Comeforo J. E.,
Fischer R. B.,
Bradley W. F.
Publication year - 1948
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.1151-2916.1948.tb14310.x
Subject(s) - kaolinite , mullite , dehydration , hexagonal crystal system , diffraction , materials science , electron microscope , chemical engineering , mineralogy , scanning electron microscope , aluminium silicate , electron diffraction , crystallography , chemistry , composite material , optics , physics , ceramic , biochemistry , engineering
A bstract The thermal behavior of kaolinite was studied by electron microscopy and X‐ray diffraction. This study has shown that hexagonal‐shaped particles persist far above the dehydration temperature of kaolinite. It was concluded that two stages of reaction represent the steps in the firing of kaolinite. First, the chemically combined water is removed, resulting in the formation of a uniquely organized, noncrystalline compound. Second, the noncrystalline compound collapses into crystalline mullite nuclei which exhibit normal growth.