نتایج جستجو برای: magnesiothermic reduction

تعداد نتایج: 491795  

Journal: :Bor dergisi 2022

This study uses a magnesiothermic reduction method to investigate the co-synthesis of zirconium boride, silicides, and oxide powder composites using ZrO2, B2O3, Si, Mg initial powders. The synthesis high-temperature ceramic powders is examined through milling durations, temperatures, excess magnesium addition. Thermochemical analysis probable reaction products was conducted by Factsage software...

Journal: :Coatings 2023

This study presents the magnesiothermic reduction of silica into silicon. process occurs at a lower reaction temperature than its carbothermal counterpart. Furthermore, was extracted from sugarcane bagasse ash via thermo-chemical treatment method using, for first time, L-cysteine chloride monohydrate and used as precursor in production silicon using reduction. The as-synthesized nanocrystalline...

Abolghasem Ataie Cyrus Zamani, Maryam Azadeh,

Silica exists in Rice husk, an agriculture waste, as a naturally occurring phase. In first step, acidic pre-treatment and calcination of the rice husk were performed to obtain nano-silica, in which various sizes of the nano-silica, totally with sizes under 80 nm, were achieved. Second, to reduce nano-silica to elemental Si and subsequently formation of the composite, Mg used as the reducing age...

In this study, Boron carbide was synthesized using Mesoporous Carbon CMK-1, Boron oxide, and magnesiothermic reduction process. The Effects of temperature and magnesium grain size on the formation of boron carbide were studied using nano composite precurser containg mesoporous carbon. Samples were leached in 2M Hydrochloric acid to separate Mg, MgO and magnesium-borat phases. SEM, XRD and Xray ...

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