Thermal Stability of Iron- and Silicon-Substituted Hydroxyapatite Prepared by Mechanochemical Method | Sciact - CRIS-система Института катализа

Thermal Stability of Iron- and Silicon-Substituted Hydroxyapatite Prepared by Mechanochemical Method Научная публикация

Журнал

Powders
ISSN: 2674-0516

Вых. Данные

Год: 2023, Том: 2, Номер: 2, Страницы: 372-386 Страниц : 15 DOI: 10.3390/powders2020022

Ключевые слова

hydroxyapatite; substitution; iron; silicon; mechanochemical synthesis; ex situ annealing

Авторы

Makarova Svetlana V. ¹ , Bulina Natalia V. ¹ , Vinokurova Olga B. ¹ , Ishchenko Arcady V. ²

Организации

1	Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Kutateladze Str. 18, 630090 Novosibirsk, Russia
2	G.K. Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Pr. Akad. Lavrentieva 5, 630090 Novosibirsk, Russia

Информация о финансировании (1)

Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

075-00521-21-00 (121032500064-8) (FWUS-2021-0009)

In this study, hydroxyapatite with the substitution of calcium cations by iron and phosphate by silicate groups was synthesized via a mechanochemical method. The as-prepared compounds have the general formula Ca10−xFex(PO4)6−x(SiO4)x(OH)2−xOx/2 with x = 0–1.5. The thermal stability of the as-prepared compounds was studied by ex situ annealing of powders in a furnace. It has been established that, at 800 °C for x ≤ 0.5, a partial decomposition of the substituted apatites occurs with the formation of the β–Ca3(PO4)2 phase. At high “x” values, the formation of this phase starts at the lower temperature of 700 °C, followed by the formation of Fe2O3 at 900 °C. The introduction of iron and silicate ions into the hydroxyapatite lattice was shown to decrease its thermal stability.

Makarova S.V. , Bulina N.V. , Vinokurova O.B. , Ishchenko A.V.
Thermal Stability of Iron- and Silicon-Substituted Hydroxyapatite Prepared by Mechanochemical Method
Powders. 2023. V.2. N2. P.372-386. DOI: 10.3390/powders2020022 РИНЦ OpenAlex

Поступила в редакцию:	2 мар. 2023 г.
Принята к публикации:	10 мая 2023 г.
Опубликована online:	11 мая 2023 г.
Опубликована в печати:	1 июн. 2023 г.

РИНЦ:	54385025
OpenAlex:	W4382813315

БД	Цитирований
РИНЦ	2
OpenAlex	4