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Bonding evolution with sintering temperature in low alloyed steels with chromium [PDF]

open access: yesScience of Sintering, 2009
At present, high performance PM steels for automotive applications follow a processing route that comprises die compaction of water-atomized powder, followed by sintering and secondary treatments, and finishing operations.
Fuentes-Pacheco L., Campos M.
doaj   +3 more sources

Elaboration of the Al-Al3Ni Alloy Eutectic by a Carbothermal Process [PDF]

open access: yesThe Scientific World Journal, 2022
The present study develops an elaborate method of materials Al-Al3Ni by carbothermic reduction of nickel oxide from the decomposition of Ni(NO3)2.4H2O mixed with aluminum powder.
Imane Bahaj   +2 more
doaj   +2 more sources

Effect of slag composition on iron nuggets formation from carbon composite pellets [PDF]

open access: yesMaterials Research, 2010
Iron-carbon nuggets can be obtained by high temperature reduction of iron ore by carbonaceous material when both are agglomerated together as a carbon composite pellet.
Alberto Eloy Anduze Nogueira   +3 more
doaj   +4 more sources

Kinetics of carbothermic reduction of synthetic chromite [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2014
In order to optimize the current reduction process of chromite, a good knowledge of reduction mechanism involved is required. The basic component in chromite ore is FeCr2O4, thus, kinetic investigation of synthetic FeCr2O4 with different amount ...
Wang Y., Wang L., Yu J., Chou K.C.
doaj   +2 more sources

The Production of Boron Carbide by Carbothermic Reduction [PDF]

open access: yesHigh Temperature Materials and Processes, 1996
Carbothermic reduction of boric acid has scientific and economic advantages over other methods of boron carbide production. The strongly endothermic reaction which has a favourable free energy change only at high temperatures is best carried out in a specially designed graphite resistance furnace at temperatures above 2000°C, using boric acid and ...
Goller, G.   +3 more
doaj   +3 more sources

Thermodynamics and Kinetics Analysis on Carbothermic Reduction of Calcined Magnesite in Vacuum [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
The carbothermic reduction of calcined magnesite in vacuum was studied. By thermodynamic analysis, the starting temperature of reduction reaction dropped from 2173K to 1523K when system pressure dropped from 1 atmosphere to 100 Pa.
Qifeng Tang   +4 more
doaj   +1 more source

Phase Transformation of Alumina, Silica and Iron Oxide during Carbothermic Reduction of Fly Ash for Ceramics Production

open access: yesMetals, 2021
Fly ash is a by-product from burning of coal. Utilization of fly ash by carbothermic reduction is an effective way to recover aluminum, silicon, and iron to enhance product-added value.
Qingchun Yu   +3 more
doaj   +1 more source

Preparation of ultrafine Mo powders by MoO3 pre-reduction with insufficient carbon and hydrogen deep reduction

open access: yesFenmo yejin jishu, 2021
The pre-reduction molybdenum powders containing minor amount of MoO2 were prepared by the carbothermic reduction of MoO3, using the carbon black as the reducing agent, then the obtained pre-reduction molybdenum powders were deep reduced by hydrogen to ...
ZHANG Yong, ZHANG Guo-Hua, CHOU Kuo-Chih
doaj   +1 more source

Carbothermic Reduction of Thorium Oxide [PDF]

open access: yesJournal of Nuclear Science and Technology, 1972
The carbothermic reduction in vacuum of thorium oxide with graphite has been studied with the aid of a high temperature thermobalance at temperatures range of 1,300°–1,900°C. The effects of differences in the reaction temperature, molecular ratio of the reactants, and in the state of the reactants such as differences between loose powder mixture and ...
Masayoshi KANNO   +4 more
openaire   +1 more source

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