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Graphite fiber growth employing nuclei derived from iron pentacarbonyl

Patent ·
OSTI ID:6842407
; ;
In a method for manufacturing carbon filaments by pyrolysis of a faseous hydrocarbon compound in the presence of iron nuclei, the improvement is described comprising: forming the iron nuclei prior to initiation of the gaseous hydrocarbon pyrolysis by heating a gas containing iron pentacarbonyl vapors at a temperature between 300/sup 0/C and 500/sup 0/C to decompose the iron pentacarbonyl to produce iron particles having diameters less than 0.1 micron and suitable for use as the nuclei for forming the carbon filaments.
Assignee:
General Motors Corp., Detroit, MI
Patent Number(s):
US 4749557
OSTI ID:
6842407
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CARBON
CARBON FIBERS
CARBONYL RADICALS
CARBONYLS
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTAL MINERALS
ELEMENTS
FIBERS
GRAPHITE
HEATING
HIGH TEMPERATURE
IRON COMPOUNDS
MINERALS
NONMETALS
NUCLEI
PARTICLES
PARTICULATES
PYROLYSIS
RADICALS
SYNTHESIS
THERMAL DEGRADATION
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS