Energy-effective AlMgB14 production by self-propagating high-temperature synthesis (SHS) using the chemical furnace as a source of heat energy P. Yu. Nikitin, A. E. Matveev, I. A. Zhukov
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ArticleContent type: Текст Media type: электронный Subject(s): самораспространяющийся высокотемпературный синтез | керамика | горение | химические печи | тепловая энергияGenre/Form: статьи в журналах Online resources: Click here to access online
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Ceramics International Vol. 47, № 15. P. 21698-21704Abstract: In this work, AlMgB14 was obtained by self-propagating high temperature synthesis (SHS) using the chemical furnace based on titanium and silicon (Ti5Si3) as a source of heat energy. Structure and phase composition of the synthesis products were studied. AlMgB14 formation mechanism was proposed. It was found that the highest yield of AlMgB14 (94 wt %) is achieved with a 2 cm thick chemical furnace. The average size of crystal grains in the obtained AlMgB14-based powder is 1 μm. The duration of AlMgB14 formation is 138 s, which is 30–180 times faster than the duration of high-temperature vacuum sintering. In this case, the SHS method makes it possible to obtain AlMgB14 excluding the energy-consuming stage of heating to the isothermal holding temperature.
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In this work, AlMgB14 was obtained by self-propagating high temperature synthesis (SHS) using the chemical furnace based on titanium and silicon (Ti5Si3) as a source of heat energy. Structure and phase composition of the synthesis products were studied. AlMgB14 formation mechanism was proposed. It was found that the highest yield of AlMgB14 (94 wt %) is achieved with a 2 cm thick chemical furnace. The average size of crystal grains in the obtained AlMgB14-based powder is 1 μm. The duration of AlMgB14 formation is 138 s, which is 30–180 times faster than the duration of high-temperature vacuum sintering. In this case, the SHS method makes it possible to obtain AlMgB14 excluding the energy-consuming stage of heating to the isothermal holding temperature.
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