Structure and properties of iron-nickel powder metallurgy alloys

Carbothermic reduction kinetics of nanocrystallite Fe2O3/NiO composites for the production of Fe/Ni alloy

“…The overall reduction process is controlled by Boudouard reaction and the apparent activation energy was calculated and given in the range of 29-55 kcal/mol. Sarkisyan [7] studied the mechanism and kinetics of the reduction of Fe 2 O 3 -NiO system with carbon and with H 2 under isothermal conditions. It was observed that the mechanical mixture of NiO and Fe 2 O 3 mixed with carbon was reduced separately without significant interaction.…”

“…The reduction behavior of iron oxides has been extensively studied using H 2 , CO, H 2 /CO gas mixtures and even with solid carbon under isothermal or non-isothermal conditions [1][2][3][4][5][6][7][8][9][10]. Nasr et al [5] studied the reducibility of different compacts made of high grade iron ore fines containing 5-20 wt.% petroleum coke at 950-1100 • C in an inert atmosphere.…”

Mechanism study on solid‐state reduction in the Fe2O3–NiO–Cr2O3–C system using thermal analyses

“…Several authors have studied the reduction of metal oxides and their mixtures using carbon and/or hydrogen as reducing agent under isothermal or nonisothermal conditions by means of thermal analyses, e.g. [2][3][4][5][6]. Sarkisyan [5] studied the mechanism and kinetics of the reduction of complex oxides in the NiO-Fe 2 O 3 system with carbon as reducing agent under nonisothermal conditions and with hydrogen under isothermal conditions.…”

“…[2][3][4][5][6]. Sarkisyan [5] studied the mechanism and kinetics of the reduction of complex oxides in the NiO-Fe 2 O 3 system with carbon as reducing agent under nonisothermal conditions and with hydrogen under isothermal conditions. Sarkisyan stated that the mechanical mixture of NiO and Fe 2 O 3 mixed with carbon was reduced separately without significant interaction.…”