Lead hydroxyapatites (PbHAp) have been prepared from H3PO4 and Pb(NO3)2 โข 5PbO (1), the latter of which was obtained through dehydration of basic lead nitrates such as 2Pb(NO3)2 โข 5Pb(OH)2 (2) and Pb(NO3)2 โข 5Pb(OH)2 (3). The amount of 2 with respect to 3, as well as the quantity of an unidentified
Thermal Stability of Hydroxyapatite Whiskers Prepared by Homogenous Precipitation
โ Scribed by H. Zhang; Y. Yan; Y. Wang; S. Li
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 160 KB
- Volume
- 4
- Category
- Article
- ISSN
- 1438-1656
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The thermal stability of calcium hydroxyapatites (CaHAp) as prepared by traditional methods is quite low, with the preponderance of CaHAp being converted to Ca 3 (PO 4 ) 2 at temperatures as low as 973 K. In contrast, control of the pH during preparation markedly enhances the thermal stability of Ca
Hydroxyapatite (HA) coatings on titanium alloy substrates were prepared by an alkaline treatment of electrodeposited precursors. The structure, residual stress, and bond strength of the coatings were investigated. Test results showed that the coatings processed in this study exhibited fairly low ten