Al3+ doped nano-hydroxyapatites and their sintering characteristics
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, vol.114, no.1335, pp.1001-1004, 2006 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 114 Issue: 1335
- Publication Date: 2006
- Doi Number: 10.2109/jcersj.114.1001
- Journal Name: JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.1001-1004
- Keywords: nano-hydroxyapatite, sintering, x-ray diffraction, precipitation, HYDROXYLAPATITE, INHIBITION
- Open Archive Collection: AVESIS Open Access Collection
- Middle East Technical University Affiliated: Yes
Abstract
Pure and Al3+ doped nano-hydroxyapatites (HA) were synthesized by a precipitation method to investigate their densification and thermal stability after the air sintering at 1100 degrees C and 1300 degrees C. Second phases were formed after increasing the All, content from 2.5% to 7.5% in HA and increasing the sintering temperature from 1100 degrees C to 1300 degrees C. Al3+ addition into HA resulted in change in the hexagonal lattice parameters from the pure HA. When the sintering temperature was increased from 1100 degrees C to 1300 degrees C, densification was improved, which was verified by SEM micrographs. Al3+ addition resulted in smaller grain size after the sintering at 1300 degrees C.