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been defined in terms of the pressure- temperature relation. Oxygen consumption in the “combustion” state is represented by first-order reaction kinetics with an activation energy of 13 ± 1 kcal/mole ...
1. Tungsten disilicide possesses comparatively high resistance to oxidation by oxygen over the temparature range 700–1200‡C. Its oxidation resistance is less than that of MoSi2 but substantially ...
and tungsten filaments attacked by atomic oxygen have been obtained in the nominal temperature range 1000°–2200°K at oxygen atom pressures in the range 10−3 to Torr. Under these conditions the oxides ...
of the higher concentrations of tantalum and tungsten in the alloy. However, high - temperature annealing promotes gettering of dissolved oxygen and of other oxides to form hafnium oxides. Small amounts of tantalum ...
on tungsten at high temperatures (1200 ...
10.1007/s10008-013-2180-6 ORIGINAL PAPER Impact of the Pt catalyst on the oxygen electroreduction reaction kinetics on various carbon supports S. Sepp & E. Härk & P. Valk & K. Vaarmets & J. Nerut & R. Jäger ...
energy options, biomass stands out as a promising candidate as environment friendly alternative fuel. However, the organic compounds found in biomass contain a high oxygen content, leading to several ...
Kinetic studies were made on the oxidation of tungsten from 500° to 1300°C for time periods up to 6 hr, and for oxygen pressures from 0.1 atm to 0.00132 atm. The rate data were fitted ...
. The adsorption and desorption phenomena which occur when tungsten at high temperatures reacts with oxygen have also been studied extensively5–7. It is generally agreed that oxygen adsorbed on tungsten can ...
-bonding of PG-SR4 powder in the temperature range 1023–1173°K and the pressure range 10–50 MPa. A study was made of the effect of temperature on the kinetic parameters and of the kinetics of densification ...
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