Results 1 to 10 of about 1,398 (118)

Ultrafast carbothermal reduction of silica to silicon using a CO2 laser beam [PDF]

open access: yesScientific Reports, 2020
We report the extraction of silicon via a carbothermal reduction process using a CO2 laser beam as a heat source. The surface of a mixture of silica and carbon black powder became brown after laser beam irradiation for a few tens of seconds, and clear ...
Seok-Ho Maeng   +5 more
doaj   +2 more sources

Reduction mechanism and optimization of prepare metallic antimony through direct microwave carbothermal reduction of antimony oxide concentrate

open access: yesJournal of Materials Research and Technology, 2022
In this work, a clean microwave carbothermal reduction of Sb2O3 mineral to prepare metallic antimony ingot is proposed. Response surface methodology was used to optimize condition for microwave carbothermal reduction of Sb2O3.
Zhu Xiongjin   +5 more
doaj   +3 more sources

Carbothermal reduction of fayalite: Thermodynamic and non-isothermal kinetic analysis [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2022
The present paper investigated the thermodynamics and kinetics of carbothermal reduction of fayalite by non-isothermal method combining with thermogravimetric analyzer and applying the Flynn-Wall-Ozawa (FWO) and Málek models.
Li Z.   +4 more
doaj   +1 more source

SiC synthesis using natural Mg-silicates [PDF]

open access: yesScience of Sintering, 2012
The silicon carbide powders are prepared by carbothermal reduction of domestic mineral resources (white and brown sepiolite), at relatively low temperatures (1200 - 1600oC).
Devečerski A.   +5 more
doaj   +1 more source

Production of Si3N4 porous beads via carbothermal reduction and nitridation technique

open access: yesJournal of Asian Ceramic Societies, 2020
Si3N4 porous beads were produced from direct carbothermal reduction and nitridation of spheres composed of carbon+SiO2 mixtures. A simple one–step sol–gel templating technique was used to prepare carbon+SiO2 (molar ratio of carbon/SiO2 was set as 4 ...
Gülsüm Topateş, Ayse Kalemtaş
doaj   +1 more source

Effect of different carbon sources on vacuum carbothermal reduction of low-grade phosphorus ore [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2022
In this study, the effect of different carbon sources on the carbothermal reduction of low-grade phosphate ore were examined using FactSage 7.2 calculations and vacuum reduction experiments.
He Xuan, Huang Run
doaj   +1 more source

Optimal preparation of high-entropy boride-silicon carbide ceramics

open access: yesJournal of Advanced Ceramics, 2020
High-entropy boride-silicon carbide (HEB-SiC) ceramics were fabricated using boride-based powders prepared from borothermal and boro/carbothermal reduction methods.
Yan Zhang   +5 more
doaj   +1 more source

Tin-functionalized silicon oxycarbide as a stable, high-capacity anode material for Na-ion batteries

open access: yesOpen Ceramics, 2023
In this study tin-functionalized silicon oxycarbide, Sn/SiOC, composite anode materials are synthesized using a carbon-rich polysiloxane as the preceramic polymer and nano-sized SnO2, which converts to metallic tin via carbothermal reduction at ...
Alexander Kempf   +4 more
doaj   +1 more source

Researching of physicochemical and structural-phase transformations in carbothermal titanomagnetite concentrates reduction for sustainable development of raw materials base of metallurgical enterprises [PDF]

open access: yesE3S Web of Conferences, 2020
This study displays results of carbothermal reduction researches of titanоmagnetite concentrate obtained during complex apatite-titanomagnetite-ilmenite ore dressing.
Baboshko Dmytro   +4 more
doaj   +1 more source

Synthesis and characterization of Co-Mo bimetallic carbides [PDF]

open access: yesScience of Sintering, 2019
Co-Mo carbides were prepared by impregnation with aqueous solution of metal salts and sucrose into ordered mesoporous SBA-15 silica template using carbothermal hydrogen reduction.
Šaponjić Aleksandra   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy