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Composite Bioceramics Engineering Based on Analysis of Phase Equilibria in the Ca3(PO4)2–CaNaPO4–CaKPO4 Systemстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 12 января 2022 г.
- Авторы: Orlov N.K., Putlayev V.I., Evdokimov P.V., Safronova T.V., Garshev A.V., Milkin P.A.
- Журнал: Inorganic Materials
- Том: 55
- Номер: 5
- Год издания: 2019
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 516
- Последняя страница: 523
- DOI: 10.1134/S0020168519050157
- Аннотация: Based on analysis of phase equilibria in the Ca3(PO4)2–CaNaPO4–CaKPO4 system at 500 and 1200°C, we have proposed compositions of composite bioceramics which lie in the single-phase field of a solid solution of phase A (Ca5Na2(PO4)4), the A + β-Ca3(PO4)2 two-phase field, and the A + X (Са8К2(РО4)6) + β-Ca3(PO4)2 three-phase field at the sintering temperature. Better strength properties— Vickers microhardness (HV) and fracture toughness (KIc)—have been obtained in the case of ceramic samples whose compositions lie in the single-phase field of phase A (HV = 265 MPa and KIc = 0.31 MPa m1/2) and samples in the A + X + β-Ca3(PO4)2 three-phase field (HV ≤ 235 MPa and KIc = 0.22 MPa m1/2). The proposed ceramic materials based on calcium sodium potassium phosphates have a relatively low and essentially constant dissolution (resorption) rate at pH = 5, at a level of 2 × 10–4 min–1.
- Добавил в систему: Путляев Валерий Иванович