Bonding evolution with sintering temperature in low alloyed steels with chromium [PDF]
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
Effect of slag composition on iron nuggets formation from carbon composite pellets [PDF]
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]
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]
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
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Thermodynamics and Kinetics Analysis on Carbothermic Reduction of Calcined Magnesite in Vacuum [PDF]
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
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
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
A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates
This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky +2 more
wiley +2 more sources
Carbothermic Reduction of Thorium Oxide [PDF]
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
Synthesis of high purity nano-sized transition-metal carbides
Nano-sized transition-metal carbides with high purities were synthesized by vacuum carbothermal reduction coupled with a novel method for the removal of free carbon by molten calcium treatment.
Ke-Han Wu +4 more
doaj +1 more source

