التفاصيل البيبلوغرافية
| العنوان: |
Dissolution kinetic and structural behaviour of natural hydroxyapatite vs. thermal treatment. |
| المؤلفون: |
Mezahi, F. Z., Oudadesse, H., Harabi, A., Lucas-Girot, A., Gal, Y., Chaair, H., Cathelineau, G. |
| المصدر: |
Journal of Thermal Analysis & Calorimetry; Jan2009, Vol. 95 Issue 1, p21-29, 9p, 2 Diagrams, 2 Charts, 6 Graphs |
| مصطلحات موضوعية: |
HYDROXYAPATITE, PHOSPHATES, PHASE transitions, DYNAMICS, THERMAL analysis, PRECIPITATION (Chemistry) |
| مستخلص: |
The dissolution kinetic and structural behaviour of natural hydroxyapatite (N-HA) and synthetic hydroxyapatite (S-HA) was studied vs. sintering temperature and using ‘in vitro’ experiments. Obtained results highlight the chemical stability of N-HA. Any structural modification was observed until 1200°C. In the fact S-HA undergoes some modifications. XRD diagrams show the tricalcium phosphate (TCP) phase formation between 800 and 1100°C and tetracalcium phosphate (TetCP) phase formation at 1200°C. The ‘in vitro’ assay shows that the dissolution was occurred more in N-HA than in S-HA. The formed TCP activated the dissolution kinetic and then the precipitation phenomena when a continuous dissolution of TetCP leaded to slow down the kinetic precipitation. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
