Gaseous flow through thin carbon films.


Thin carbon films, when used as coatings on prosthetic devices, must be a barrier to gases and physiological fluids. Using CO2 at room temperature, the gas permeability of carbon films ranging in thickness from about 200 to 500A was measured. The average permeability constant of 21 carbon films was determined to be 1.91 (+/- 1.02) x 10(-12) cm3-cm/cm2-sec… (More)


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