Title :
Influence of defects and substitutions on polarization phenomena of bioelectrets: apatites
Author :
Bennis, A. ; Miskane, F. ; Hitmi, N. ; Vignoles, M. ; Heughebaert, M. ; Lamure, A. ; Lacabanne, C.
Author_Institution :
Lab. de Phys. des Solides, Mohammed V. Univ., Rabat, Morocco
fDate :
8/1/1992 12:00:00 AM
Abstract :
Nonstoichiometric hydroxyapatites and carbonated hydroxyapatites are characterized by the thermally stimulated current technique. Since dielectric energy losses are cooperative, the compensation temperature has been chosen as fingerprint of the local order. Relaxation map analysis shows the existence of either monophasic or biphasic structures and analysis of polarization phenomena gives information on localization and interaction of defects with structural ions of the apatites
Keywords :
bioelectric phenomena; crystal defects; dielectric polarisation; electrets; thermally stimulated currents; apatites; bioelectrets; biphasic structures; carbonated hydroxyapatites; compensation temperature; defect localization; defects; dielectric energy losses; interaction of defects; nonstoichiometric hydroxyapatites; polarization phenomena; relaxation map analysis; single phase structures; structural ions; substitutions; thermally stimulated current; Calcination; Calcium; Dielectric losses; Dielectrics and electrical insulation; Energy loss; Fingerprint recognition; Information analysis; Polarization; Temperature; X-rays;
Journal_Title :
Electrical Insulation, IEEE Transactions on
