Fluoroapatite - material for medicine: growth, morphology and thermoanalytical properties

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DOIResolve DOI: http://doi.org/10.1023/B:JTAN.0000042155.26913.79
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TypeArticle
Journal titleJournal of Thermal Analysis and Calorimetry
Volume78
Issue1
Pages7382; # of pages: 10
SubjectDTA, fluoroapatite, growth, morphology, SEM, synthesis, XRD
AbstractFluoroapatite containing glass-ceramics were prepared from Li2O-CaO-CaF2-P2O5-SiO2 system. The glass was melted at 1480 oC for 1h. The object of observation was the preparing crystal phase of fluoroapatite in amorphous glass matrix. The morphology of lithium disilicate glass-ceramics was studied by SEM. The crystal growth and thermal properties of fluoroapatite were studied by X-ray diffraction and DTA. The more the content of P2O5, the more the presence of fluoroapatite particles. SEM investigation clearly indicated the phase separation and formation of a primary crystallic phase of fluoroapatite in the studied glass-ceramics. DTA curves of the fluoroapatite samples exhibit exothermic effects in the temperature range 337-694 oC depending on the composition of the materials. The position of exothermic peak for lithium disilicate on DTA curves moves with increasing specific surface towards lower temperatures which points on its preferential surface crystallization. As far as physical qualities are concerned, mainly color and gloss, the best qualities of all observed materials belong to glass-ceramics with 10% P2O5.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number47321
16516
NPARC number20378345
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Record identifier678d0f5f-8b8d-4e68-b625-2ef8547ab865
Record created2012-07-24
Record modified2016-05-09
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