Title:
CARBONACEOUS WHISKER
Document Type and Number:
Japanese Patent JPS58104095
Kind Code:
A
Abstract:
PURPOSE:A hydrocarbon gas is pyrolyzed at an elevated temperature in an electric field atmosphere in which an anode anc cathode are arranged in parallel with each other to give carbonaceous whiskers with smooth surfaces without defects, with luster, straight shapes of uniform diameters and high strength. CONSTITUTION:The reaction tube 1 is provided with a resistance heater 2 surrounding its outer periphery and with a cathode 4 having the catalyst surface 3 and an anode 5 in parallel with the cathode. As a catalyst, is used a powder selected from elementary substances of Be, B, Al, Si, C, Fe and so on or their oxides or carbides. The electric energy of 6-400V/cm field intensity is applied to the electrodes to form an electric field atmosphere and a hydrocarbon gas such as propane or methane gas is fed into the reaction tube 1 at a flow rate of 0.1-50cm/min. to effect pyrolysis at 900-1,400 deg.C, thus producing the objective carbonaceous whiskers.
Inventors:
SAKAI KUNIO
SAITOU TAKESHIROU
WATANABE HIROAKI
SAITOU TAKESHIROU
WATANABE HIROAKI
Application Number:
JP19999181A
Publication Date:
June 21, 1983
Filing Date:
December 14, 1981
Export Citation:
Assignee:
ASAHI CHEMICAL IND
International Classes:
C01B31/02; C30B25/00; C30B29/62; D01F9/12; D01F9/133; (IPC1-7): C01B31/00; C30B25/00; C30B29/02; C30B29/62