СВ-синтез композиционных материалов с использованием боратовой руды Индерского месторождения РК

Р.Г. Абдулкаримова; Б. Милихат; К. Камунур; Д.А. Байсейтов; Н.Б. Кудьярова; А.Д. Исагалиев; З.А. Мансуров

doi:10.18321/

Authors

R.G. Abdulkarimova Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty; Institute of combustion problems, Bogenbai batyr st. 172, 050012, Almaty
B. Mylyhat Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty; Institute of combustion problems, Bogenbai batyr st. 172, 050012, Almaty
K. Kamunur Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty; Institute of combustion problems, Bogenbai batyr st. 172, 050012, Almaty
D.A. Baiseitov Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty; Institute of combustion problems, Bogenbai batyr st. 172, 050012, Almaty
N.B. Kudyarova Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty; Institute of combustion problems, Bogenbai batyr st. 172, 050012, Almaty
A.D. Isagaliev Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty; Institute of combustion problems, Bogenbai batyr st. 172, 050012, Almaty
Z.A. Mansurov Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty; Institute of combustion problems, Bogenbai batyr st. 172, 050012, Almaty

DOI:

https://doi.org/10.18321/

Keywords:

synthesis, composites, ores, phase composition, systems, combustion

Abstract

The aim of this investigation is self propagating high temperature synthesis (SHS) of composition materials with a wide range of phase composition using borate ore of Inder deposite of RK. The ores of Inder deposite are represented mainly by asharite, hydroboracite and ulexite. The average content of В₂О₃ in Inder ores makes up 15-27,5%. In relation to the fact that borate ore of Inder deposite is distinguished by a considerable content of gypsum, the initial raw materials was concentrated, maximum content of boron oxide after concentration of ore made up 40 mass.%. SH-synthesis was carried out in the systems TiO₂+B₂O₃+Al, TiO₂+B₂O₃+Mg, Cr₂O₃+Al+B₂O₃, ZrSiO₄+Mg+B₂O₃, TiO₂+B₂O₃+C+Mg (where B₂O₃ in the compo-sition of borate ore). To produce refractory composition materials, the amount of titanium dioxide, borate ore, aluminium and magnesium was varied in the course of experiments and calculated taking into account stoichiometry and possibilities of optimization of magnesium and aluminium content in the initial mixture of components in order to increase reactactivity in the reactions of aluminothermal and magnesiumthermal combustion. The effect of SHS medium (air, argon), the preliminary mechanical activation before SH-synthesis on the phase composition of the synthesized materials and macrokinetic characteristics of the com-bustion process was stated. The presence of high temperature phases- borides of titanium, chromium, vana-dium, zirconium, oxides of aluminum and magnesium and their spinels were determined in SHS products by X-ray phase analysis. The microstructure of obtained materials was studied by the method of electron spec-troscopy (SEM, EDAX). The possibility using of borates of Inder deposite of RK as a boron containing component for production of composition materials by the method of self propagating high temperature synthesis was shown.

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