TRANSFORMATION BEHAVIOR OF CALCIUM-PHOSPHATE .1. THEORY AND MODELING

Journal article

A model has been derived to predict the in vitro precipitation behaviour of calcium phosphate from supersaturated aqueous solutions. This model, which makes use of the Avrami-Johnson-Mehl formulae, takes into consideration thermodynamic and kinetic factors and relates them to the preferential formation of precursor phases and their subsequent stage-wise transformation to hydroxyapatite. Predictions using the modified expressions have been found to be consistent with experimental data obtained over a wide range of conditions. In particular, the transformation reaction of calcium phosphate under physiological conditions is discussed. © 1993.

Authors: Wong, A; Czernuszka, J

• Publication status: Published
• Journal: COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
• Volume: 78
• Issue: C
• Pages: 245-253
• Publication date: 1993-10-15
• DOI: 10.1016/0927-7757(93)80330-H
• ISSN: 0927-7757
• Language: English
• Keywords: IN-VITRO MINERALIZATION; AVRAMI EQUATION; NUCLEATION AND GROWTH; CALCIUM PHOSPHATE; PHASE TRANSFORMATION