The condensation coefficients of C2 and C3, the high temperature vapor species of carbon, were determined by using the isotopic exchange technique and a time-of-flight mass spectrometer. Two powder compacts of C12(s) and C13(s) were heated to 2663K in a tungsten Knudsen cell. Exchange reactions were studied by analyzing the vapor effusing from the Knudsen cell by a Time-of-Flight mass spectrometer. The condensation coefficient beta2 of C2 was evaluated from ...
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