Title:
PRODUCTION OF LARGE-DIAMETER SILICON CARBIDE WHISKER
Document Type and Number:
Japanese Patent JPH04119998
Kind Code:
A
Abstract:
PURPOSE:To obtain a large-diameter silicon carbide whisker in high yield by using a multicomponent catalyst as a combination of specified metals to form a product nucleus on a whisker forming substrate prior to the reaction. CONSTITUTION:A large-diameter silicon carbide whisker is produced by the following five processes 1-5. (1) A multicomponent catalyst contg. >=2 kinds of metals selected from a group (group A) consisting of copper and the iron, nickel, cobalt, rhodium, palladium, osmium, iridium and platinum as group VIII metals and >=1 kind of metal selected from a group (group B) consisting of molybdenum, ruthenium, rhenium and tungsten in the molar ratio (group A/group B)=0.5 to 10.0 as the effective components is deposited on a substrate in a reaction system, (2) gaseous silicon sulfide is introduced to form a silicon- based nucleus on the substrate, (3) a gaseous hydrocarbon is introduced and subjected to a reaction to convert the silicon-based nucleus into a silicon carbide nucleus, (4) a silicon carbide whisker forming catalyst is additionally deposited, and (5) a hydrocarbonic compd. and silicon sulfide are introduced and subjected to the reaction to grow a silicon carbide whisker on the silicon carbide nucleus.
Inventors:
TSUTSUI HIROSHI
IKEYAMA NOBUHIDE
KIBA KEIICHIRO
IKEYAMA NOBUHIDE
KIBA KEIICHIRO
Application Number:
JP23585290A
Publication Date:
April 21, 1992
Filing Date:
September 07, 1990
Export Citation:
Assignee:
MITSUI MINING CO LTD
International Classes:
B01J23/889; B01J23/84; B01J23/85; B01J23/89; C30B29/62; (IPC1-7): B01J23/84; B01J23/85; B01J23/89; C30B29/62
Attorney, Agent or Firm:
Wakabayashi Tadashi