Analyses of fluorapatite prepared by both chemical precipitation and solid phase reaction methods

• Дата: 2013
• Автори: Sayenko, S.Yu., Shkuropatenko, V.А., Tarasov, R.V., Prudyvus, K.А., Savina, S.А., Zykova, A.V.
• Формат: Стаття
• Мова: English
• Опубліковано: Науковий фізико-технологічний центр МОН та НАН України 2013
• Назва видання: Физическая инженерия поверхности
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/100313
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Analyses of fluorapatite prepared by both chemical precipitation and solid phase reaction methods / S.Yu. Sayenko, V.А. Shkuropatenko, R.V. Tarasov, K.А. Prudyvus, S.А. Savina, A.V. Zykova // Физическая инженерия поверхности. — 2013. — Т. 11, № 3. — С. 279–284. — Бібліогр.: 11 назв. — англ.

At the present study the possibility of obtaining two compositions of Ca₁₀(PO₄)₆F₂ and Ca₉Sr(PO₄)₆F₂ fluoroapatites by both chemical deposition from solutions of the initial components and reaction in the solid phase was investigated. Using X-ray diffraction (XRD) method was shown that the fluorapatite synthesis based on calcium pyrophosphate with the addition of strontium takes place at lower temperatures. Fluoroapatite formation obtained by precipitation process is the result of the reaction between initial component solutions. At the process of heat treatment of obtained powders by XRD method was found that compared with fluorapatite obtained by solid phase reaction, fluorapatite obtained by precipitation method include less content of TCP phase. Maximum density (~92 % of the theoretical value) is reached for the sample heat treated at 1250 °C with the exposure time up to 6 hours for fluorapatite obtained by precipitation and at a temperature 1200 °C with the exposure time up to 10 hours for fluorapatite prepared by reaction in the solid phase.