Study of thermal effects of silicate-containing hydroxyapatites

Study of thermal effects of silicate-containing hydroxyapatites

Dettagli Bibliografici
Parent link:	IOP Conference Series: Materials Science and Engineering Vol. 110 : Radiation-Thermal Effects and Processes in Inorganic Materials (RTEP2015).— 2016.— [012024, 6 p.]
Ente Autore:	Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра иностранных языков физико-технического института (ИЯФТ)
Altri autori:	Golovanova O. A., Zaits A. V., Berdinskaya N. V., Mylnikova T. S. Tatyana Stepanovna
Riassunto:	Title screen The possibility of modifications of hydroxyapatite silicate ions, from the extracellular fluid prototype solution under near-physiological conditions has been studied. Formation of silicon-structured hydroxyapatite with different extent of substitution of phosphate groups in the silicate group has been established through chemical and X-ray diffraction analyses, FTIR spectroscopy and optical microscopy. The results obtained are in agreement and suggest the possibility of substitution of phosphate groups for silicate groups in the hydroxyapatite structure when introducing different sources of silica, tetraethoxysilane and sodium silicate, in the reaction mixture. Growth in the amount of silicon in Si-HA results in the increase in the thermal stability of the samples. The greatest mass loss occurs at temperatures in the range of 25-400 °С that is caused by the removal of the crystallization and adsorption water and volatile impurities. It is shown that the modified apatites are of imperfect structure and crystallize in a nanocrystalline state. Режим доступа: по договору с организацией-держателем ресурса
Lingua:	inglese
Pubblicazione:	2016
Soggetti:	электронный ресурс труды учёных ТПУ тепловые эффекты гидроксиапатит кристаллизация апатиты
Accesso online:	http://dx.doi.org/10.1088/1757-899X/110/1/012024 http://earchive.tpu.ru/handle/11683/18119
Natura:	Elettronico Capitolo di libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=647000

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