which in turn influences the subsequent rate of carbon deposition. As
surface area increases, the coating rate decreases since a larger
surface area now has to be coated with the same amount of
carbon available. Thus the process is not in equilibrium. The
static-bed process was adequate to coat nuclear fuel particles
without attempting to control the bed surface area, because
such thin coatings (25 to 50 µm thick) did not appreciably
affect the bed surface area.