A differential scanning calorimeter study of the monoclinic (P2(1)/b) <-> hexagonal (P6(3)/m) reversible phase transition in hydroxyapatite

Authors
Takahashi, H Yashima, M Kakihana, M Yoshimura, M
Citation
H. Takahashi et al., A differential scanning calorimeter study of the monoclinic (P2(1)/b) <-> hexagonal (P6(3)/m) reversible phase transition in hydroxyapatite, THERMOC ACT, 371(1-2), 2001, pp. 53-56
Citations number
19
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
THERMOCHIMICA ACTA
ISSN journal
00406031 → ACNP
Volume
371
Issue
1-2
Year of publication
2001
Pages
53 - 56
Database
ISI
SICI code
0040-6031(20010426)371:1-2<53:ADSCSO>2.0.ZU;2-U
Abstract
The apparent transition temperature (T-c) and enthalpy (DeltaH) of monoclin ic (P2(1)/b) <----> hexagonal (P6(3)/m) reversible phase transition in stoi chiometric (Ca/P = 5/3) hydroxyapatite were investigated as a function of h earing/cooling rate by means of a differential scanning calorimeter (DSC), in the heating/cooling rate range of 0.5-3.0 K/min. The apparent T-c value slightly increased and decreased with increasing heating and cooling rates, respectively, while the apparent DeltaH value was almost same within the e xperimental error. (C) 2001 Elsevier Science B.V. All rights reserved.