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Kinetic limitations on the diffusional control theory of the ablation rate of carbon. (1971)

Maahs, H. G.

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Publication Date: 2011-08-16

Description: It is shown that the theoretical maximum oxidation rate is limited in many cases even at temperatures much higher than 1650 deg K, not by oxygen transport, but by the kinetics of the carbon-oxygen reaction itself. Mass-loss rates have been calculated at air pressures of 0.01 atm, 1 atm, and 100 atm. It is found that at high temperatures the rate of the oxidation reaction is much slower than has generally been assumed on the basis of a simple linear extrapolation of Scala's 'fast' and 'slow' rate expressions. Accordingly it cannot be assumed that a transport limitation inevitably must be reached at high temperatures.

Keywords: THERMODYNAMICS AND COMBUSTION

Type: Journal of Spacecraft and Rockets; 8; Dec. 197

Format: text

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