CaO–P2O5–Na2O-based sintering additives for hydroxyapatite (HAp) ceramics
✍ Scribed by S.J. Kalita; S. Bose; H.L. Hosick; A. Bandyopadhyay
- Book ID
- 108069209
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 640 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0142-9612
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P2O5-based glass hydroxyapatite (HA) composites denoted HA-2 oxide, HA-3 oxide, and HA-4-oxide, were immersed in Hank's balanced salt solution for a period of 1, 2, 3, and 4 weeks at 37 degrees C in nonagitated condition for in vitro evaluation. A surface layer was precipitated on the composites tha
## Abstract In this research, we improved densification, hardness, and compression strength of synthetic hydroxyapatite (HAp) ceramics by introducing small quantities of MgO‐CaO‐P~2~O~5~‐Na~2~O‐based sintering additives. Biological properties of HAp were not altered by this procedure. Phase analyse
Commercial hydroxyapatite was reinforced by adding small amounts (2 and 4wt%) of P2Os-based glasses during its sintering process. The composites prepared had a chemical composition closely related to the mineral part of bone tissues in terms of trace elements usually detected, such as Na, K and Mg.