Reduction Characteristics of Certain Oxides of Nickel and Uranium
The reduction of a uranium oxide (U3O8) and nickelous oxide (NiO) by hydrogen atmospheres has been studied using a Cahn RG electrobalance. The oxide samples were prepared by the thermal decomposition of selected nickel and urariyl salts. Heating of the product oxides caused sintering observable as a decrease in surface area. The effect of this sintering on the rates of reduction of the oxides has been investigated in a series of isothermal experiments. The kinetics of the reduction process are investigated and possible reaction mechanisms are suggested.
KeywordsInduction Period Reduction Process Excess Weight Loss Nickel Oxide Reduction Characteristic
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