A Novel Approach to the Synthesis of Silicocarnotite
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Materials Letters
ISSN: 0167-577X
, E-ISSN: 1873-4979
|
| Вых. Данные |
Год: 2016,
Том: 164,
Страницы: 255-259
Страниц
: 5
DOI:
10.1016/j.matlet.2015.10.047
|
| Ключевые слова |
Bioceramic, Mechanochemical synthesis, Nanocrystalline material, Phase transition, Silicocarnotite, Silicon-substituted apatite |
| Авторы |
Bulina Natalia V.
1
,
Chaikina Marina V.
1
,
Gerasimov Konstantin B.
1
,
Ishchenko Arcady V.
2,3
,
Dudina Dina V.
1,4
|
| Организации |
| 1 |
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of Russian Academy of Sciences, Kutateladze Street 18, Novosibirsk 630128, Russia
|
| 2 |
Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Lavrentyev Avenue 5, Novosibirsk 630090, Russia
|
| 3 |
Novosibirsk State University, Pirogova Street 2, Novosibirsk 630090, Russia
|
| 4 |
Lavrentyev Institute of Hydrodynamics, Siberian Branch of Russian Academy of Sciences, Lavrentyev Avenue 15, Novosibirsk 630090, Russia
|
|
Информация о финансировании (1)
|
1
|
Совет по грантам Президента Российской Федерации
|
НШ-2938.2014.3
|
In this letter, we present a new approach to the synthesis of silicocarnotite ― a promising bioceramic material. This approach is based on selecting a precursor with a crystalline structure close to that of silicocarnotite in an attempt to reduce the transformation temperatures. In the synthesis route that we suggest, silicocarnotite forms from mechanochemically synthesized nanosized silicon-substituted apatite. The main advantages of this route are lower temperatures and shorter annealing times required for the synthesis of the target phase in comparison with the direct solid-state synthesis, aqueous precipitation or sol–gel method. It was shown that the silicocarnotite phase is obtainable by annealing the mechanochemically synthesized silicon-substituted apatite for 5 h at a temperature as low as 1000 °C. According to the differential scanning calorimetry, the phase transition from silicon-substituted apatite to silicocarnotite occurs at 970 °C. In this work, complete assignment of the absorption bands of the IR spectrum of silicocarnotite to particular bond vibrations is reported for the first time.