Growth whisker was found during the deposition of pyrolytic carbon between 1300。 and 1700 ℃ under reduced pressure.
It is confirmed, that the growth whisker through the ceramic material of Al₂O₃- und SiO₂-Base was catalyzed. During its growth the whisker was distincted between the primary and the seondary growth whisker. In this report the growth rate of whisker was given for the first time. The rate was 25-43 u/sec in primary and 0.3-0.4 u/sec in secondary under the temperature of 1500 ℃ and 400 Torr.
Carpet-rolled mechanism explained by Schlesinger was demonstrated in the secondary growth alone, and the screw-mechanism presumed by him was proofed in the primary growth through microscope.