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gas permeation

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Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 1417-1421, October 22–25, 2013,
... the initially formed protective Cr 2 O 3 scale facilitated gas permeation. This mechanism is believed to be responsible for the observed dependence of nodule formation on the oxygen content in the gas mixtures. carbon dioxide gas mixtures gas permeation high temperature oxidation intrinsic defects...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 888-899, October 11–14, 2016,
... and external oxide scaling of low alloy steels, P91 steel and a variety of chromia-forming, heat resisting alloys. The gas reactions CO2 = CO + ½O2 2CO = CO2 + C (1) (2) 888 lead to very low carbon activity, aC, values in pure CO2, and the gas itself is clearly not carburising. However, reacting alloys...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 844-854, October 11–14, 2016,
... construction in Texas. However, the combustion of natural gas or coal-derived synthesis gas would incorporate high (>1%) levels of H2O and O2 into the supercritical fluid, creating a more complex oxidizing environment compared to an indirect-fired or closed sCO2 cycle. With low (i.e. ppm) impurity levels...