Method for extruding pitch based foam
Patent
·
OSTI ID:874222
- Knoxville, TN
A method and apparatus for extruding pitch based foam is disclosed. The method includes the steps of: forming a viscous pitch foam; passing the precursor through an extrusion tube; and subjecting the precursor in said extrusion tube to a temperature gradient which varies along the length of the extrusion tube to form an extruded carbon foam. The apparatus includes an extrusion tube having a passageway communicatively connected to a chamber in which a viscous pitch foam formed in the chamber paring through the extrusion tube, and a heating mechanism in thermal communication with the tube for heating the viscous pitch foam along the length of the tube in accordance with a predetermined temperature gradient.
- Research Organization:
- LOCKHEED MARTIN ENERGY RES COR
- DOE Contract Number:
- AC05-96OR22464
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Number(s):
- US 6344159
- OSTI ID:
- 874222
- Country of Publication:
- United States
- Language:
- English
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apparatus
based
carbon
chamber
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disclosed
extruded
extruding
extrusion
foam
form
formed
forming
gradient
heating
length
mechanism
method
paring
passageway
passing
pitch
precursor
predetermined
steps
subjecting
temperature
thermal
thermal communication
tube
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viscous
apparatus
based
carbon
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communication
communicatively
connected
disclosed
extruded
extruding
extrusion
foam
form
formed
forming
gradient
heating
length
mechanism
method
paring
passageway
passing
pitch
precursor
predetermined
steps
subjecting
temperature
thermal
thermal communication
tube
varies
viscous