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Influence of B 2 O 3 on Crystallization Behavior and Microstructure of Mica Glass‐Ceramics in the System BaO ·4 MgO · Al 2 O 3 ·6 SiO 2 ·2 MgF 2
Author(s) -
Mallik Amit,
Maiti Prabir Kumar,
Kundu Paritosh,
Basumajumdar Arunabha
Publication year - 2012
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.1551-2916.2012.05455.x
Subject(s) - crystallization , microstructure , differential thermal analysis , barium , materials science , glass transition , mica , mineralogy , ceramic , diffraction , chemical engineering , crystallography , analytical chemistry (journal) , chemistry , composite material , polymer , optics , metallurgy , chromatography , physics , engineering
The effect of varying B 2 O 3 content on the crystallization and microstructure behavior of barium‐containing glasses based on the system BaO ·4 MgO · Al 2 O 3 ·6 SiO 2 ·2 MgF 2 was investigated by differential thermal analysis ( DTA ), X‐ray diffraction, and scanning electron microscopy. Heat treatment of glass specimens in the form of fine powders in the range of 884°C–901°C led to the formation of barium fluorophlogopite. DTA study revealed that the glass transition temperature ( T g ) and crystallization peak temperature ( T p ) decreased by increasing B 2 O 3 content. It was also found that the higher the B 2 O 3 content, the higher the aspect ratio of fluorophlogopite crystal.
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