The diffusion of carbon was determined at 1338 to 1772K. A simple radiotracer technique was used which monitored the change in surface activity as a function of annealing time. A single expression represented the data over the entire range of temperatures:

D(cm2/s) = 0.1 exp[-62500/RT]

R.A.Krakowski: Journal of Nuclear Materials, 1969, 32[1], 120-5