Improvement of the microstructure and microhardness of hydroxyapatite ceramics by addition of lithium
โ Scribed by M.A. Fanovich; M.S. Castro; J.M. Porto Lopez
- Book ID
- 117358319
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 496 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0167-577X
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## Abstract The current study focused on doping of hydroxyapatite (HA) with constant yttrium (Y^3+^) and varying fluoride (F^โ^) compositions to investigate its microstructure, microhardness, and biocompatibility. HA was synthesized by precipitation method and sintered at 1100ยฐC for 1 h. Y^3+^ and
Polycrystalline hydroxyapatite (HAP) ceramics were densified by hot pressing. The effects of thermal treatments and of a sintering additive (Na3PO4) on the microstructure, flexural strength and fracture toughness were investigated. Hot pressing without additive resulted in dense HAP having a Small a