|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Ceramic Materials with a Prescribed Phase Composition Based on Hydroxyapatite Powder Processed in Dihydrogen Phosphate Solutions of Ammonium, Sodium, and Potassiumстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 15 февраля 2024 г.
- Авторы: Safronova T.V., Zhao Z., Li Q, Kaimonov M.R., Shatalova T.B., Filippov Ya Yu, Filippova T.V., Gavlina O.T., Vlasenko V.S., Knot’ko A.V.
- Журнал: Glass and Ceramics (English translation of Steklo i Keramika)
- Том: 80
- Номер: 5 – 6
- Год издания: 2023
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 241
- Последняя страница: 249
- DOI: 10.1007/s10717-023-00591-9
- Аннотация: Hydroxyapatite (HA) Ca10(PO4)6(OH)2 powders kept for 1 h with stirring in 0.25 M aqueous solutions of dihydrogen phosphates of ammonium NH4H2PO4, sodium NaH2PO4, and potassium KH2PO4 were used to obtain ceramics. According to XRD data, there were no changes in the phase compositions of powders after such treatment. After firing at 900 – 1100°C the phase composition of ceramics based on HA Ca10(PO4)6(OH)2 powder treated with an aqueous solution of NH4H2PO4 included β-tricalcium phosphate β-Ca3(PO4)2 and HA Ca10(PO4)6(OH)2; the phase composition of ceramics based on HA powder Ca10(PO4)6(OH)2 treated with an aqueous solution of NaH2PO4 included sodium-substituted tricalcium phosphate Ca10Na(PO4)7 and HA Ca10(PO4)6(OH)2; the phase composition of ceramics based on HA powder Ca10(PO4)6(OH)2 treated with an aqueous solution of KH2PO4 included potassium-substituted tricalcium phosphate Ca10K(PO4)7 and HA Ca10(PO4)6(OH)2. The formation of biphasic ceramics occurred because of reduction in the Ca/P molar ratio of HA Ca10(PO4)6(OH)2 powder after treatment in aqueous solutions of dihydrogen phosphates of ammonium NH4H2PO4, sodium NaH2PO4, and potassium KH2PO4. Adsorption of cations and anions from solutions on the surface of HA particles, slight dissolution of HA in aqueous solutions of dihydrogen phosphates with acidic pH, as well as ion exchange of cations and anions in the HA structure for cations and anions from solutions were possible processes effecting change in the ratio of cations and anions in HA powder. The resulting ceramic composites contain biocompatible phases and can be recommended for creating bone implants. Keywords: hydroxyapatite, tricalcium phosphate, sodium-substituted tricalcium phosphate, potassium-substituted tricalcium, phosphatecomposite
- Добавил в систему: Сафронова Татьяна Викторовна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|