Effect of thermochemical activation of clay raw materials on phase formation, microstructure and properties of aluminosilicate proppants; Applied Clay Science; Vol. 183

Detalhes bibliográficos
Parent link:	Applied Clay Science Vol. 183.— 2019.— [105335, 11 p.]
Corporate Authors:	Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Научно-образовательный центр Н. М. Кижнера, Национальный исследовательский Томский политехнический университет Институт неразрушающего контроля Учебно-методический отдел
Outros Autores:	Vakalova T. V. Tatyana Viktorovna, Reshetova A. A. Antonina Aleksandrovna, Revva I. B. Inna Borisovna, Rusinov P. G. Pavel Gennadjevich, Balamygin D. I. Dmitry Ivanovich
Resumo:	Title screen In this study, the complex influence of the preliminary calcination temperature of refractory clay raw materials and mineralizing oxide additives on phase formation, microstructure and properties of aluminosilicate proppants was researched. The morphology structure and phase composition of specimens were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results show that the effectiveness on the addition of 3d-transition element oxides (Fe2O3 and MnO2) and alkaline and alkaline earth oxides (Na2O, MgO, CaO) and B2O3 to the sintering process of samples based on kaolin depends on the temperature of preliminary kaolin calcination (900-1100 °C) and temperature sample sintering (1350-1450°C). Based on the effectiveness of the influence on aluminosilicate ceramic sintering at the temperature range of 1400-1450°C, the recommended additives can be sequentially arranged as follows: Fe2O3 > MgO > MnO2 > Na2O > B2O3 > CaO. The thermal activity scheme for each group of mineralizer additives depending on the temperature conditions of the consolidation process has been proposed in this study. The use of mineralizing additives with kaolin calcined at a temperature range of 980-1100 °C produces lightweight aluminosilicate proppants with bulk density of up to 1.50 g/cm3 at sintering calcination of 1400-1450 °C, which can endure destructive pressures up to 52 MPa. Режим доступа: по договору с организацией-держателем ресурса
Idioma:	inglês
Publicado em:	2019
Assuntos:	электронный ресурс труды учёных ТПУ kaolin sintering mineralizer proppant microstructure каолины спекание минерализаторы микроструктура
Acesso em linha:	https://doi.org/10.1016/j.clay.2019.105335
Formato:	Recurso Electrónico Capítulo de Livro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661673