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Effect of Aluminum Phosphate Additions on the Crystallization and Bioactivity of Fluorrichterite Glass–Ceramics for Biomedical Applications
Author(s) -
Holloway Julie A.,
Denry Isabelle
Publication year - 2007
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.1551-2916.2007.01788.x
Subject(s) - mica , crystallization , materials science , nucleation , ceramic , glass ceramic , microstructure , bioactive glass , chemical engineering , simulated body fluid , mineralogy , composite material , aluminium , scanning electron microscope , chemistry , organic chemistry , engineering
This study evaluated the effect of aluminum phosphate (AlPO 4 ) additions on the crystallization behavior and bioactivity of potassium fluorrichterite glasses and glass–ceramics. Four glass compositions with increasing amounts of AlPO 4 were melted. Mica and fluorrichterite were present in all glass–ceramics after crystallization. The microstructure consisted of platelet‐shaped mica and prismatic fluorrichterite crystals. After incubation in simulated body fluid, a layer consisting of spherical‐nanosized particles was present on the surface of the glasses. X‐ray diffraction revealed the presence of hydroxyapatite after incubation of the glass and glass–ceramic powders. The addition of AlPO 4 promoted mica nucleation and bioactivity in K‐fluorrichterite glass–ceramics.