X-ray diffractometric determination of crystalline phase content in bioactive glasses.
A rapid routine determination of the content of crystalline CaF(2) and Al(2)O(3) inclusions in bioactive glass ceramics is performed using X-ray diffractometry with a standard addition technique. Multiple ratio analysis, even using peaks with different broadenings, indicates that differences in crystallite properties (e.g., crystal imperfection, particle size and morphology, preferred orientation) between the unknown sample and standard do not bias the result. In this respect, an exact match between their crystallographic integrities does not seem to be required for a reliable estimation of the crystalline content with a relative standard deviation of 7%.
De Maeyer
E A
EA
Department of Dental Materials Science, Institute for Biomedical Technologies, Ghent University, De Pintelaan 185 (P8), B-9000 Ghent, Belgium.
Verbeeck
R M
RM
D000465:Algorithms; D000537:Aluminum Oxide / Q000737:chemistry; D001672:Biocompatible Materials; D002124:Calcium Fluoride / Q000737:chemistry; D002138:Calibration; D003460:Crystallization; D018360:Crystallography, X-Ray; D005898:Glass / Q000737:chemistry*
D001672:Biocompatible Materials; D000537:Aluminum Oxide; D002124:Calcium Fluoride