التفاصيل البيبلوغرافية
| العنوان: |
Possibilities of Mechanochemical Synthesis of Apatites with Different Ca/P Ratios |
| المؤلفون: |
Marina V. Chaikina, Natalia V. Bulina, Olga B. Vinokurova, Konstantin B. Gerasimov, Igor Yu. Prosanov, Nikolay B. Kompankov, Olga B. Lapina, Evgeniy S. Papulovskiy, Arcady V. Ishchenko, Svetlana V. Makarova |
| المصدر: |
Ceramics; Volume 5; Issue 3; Pages: 404-422 |
| بيانات النشر: |
Multidisciplinary Digital Publishing Institute |
| سنة النشر: |
2022 |
| المجموعة: |
MDPI Open Access Publishing |
| مصطلحات موضوعية: |
bioceramics, calcium phosphates, hydroxyapatite, calcium-deficient apatite, calcium-rich apatite, tricalcium phosphate, synthesis, mechanochemistry |
| الوصف: |
Apatite is widely used in medicine as a biomaterial for bone tissue restoration. Properties of apatite depend on its composition, including the Ca/P ratio. This paper shows what range of Ca/P ratio can be attained in apatite by the mechanochemical method of synthesis, providing fast formation of a single-phase product. The synthesis was carried out from a reaction mixture of CaHPO4 and CaO at different Ca/P ratios in the range of 1.17–2.10. The products were studied by PXRD, FTIR and NMR spectroscopy, HRTEM, and STA. In mixtures with a low initial Ca/P ratio (1.17–1.48), directly in the mill, the formation of calcium orthophosphate with whitlockite structure containing an HPO42− group and structural water is shown for the first time. This phosphate has structure similar to that of whitlockites of hydrothermal origin and differs from high-temperature β-tricalcium phosphate that has composition Ca3(PO4)3. A series of samples of apatite was obtained with varied composition, which depends on the initial Ca/P ratio. At Ca/P < 1.67, the formation of two types of calcium-deficient apatite was documented. At Ca/P > 1.67, the existence of two types of calcium-rich apatite is confirmed. |
| نوع الوثيقة: |
text |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
https://dx.doi.org/10.3390/ceramics5030031 |
| DOI: |
10.3390/ceramics5030031 |
| الاتاحة: |
https://doi.org/10.3390/ceramics5030031 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.251325A5 |
| قاعدة البيانات: |
BASE |