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Title: Method for extruding pitch based foam

Abstract

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.

Inventors:
 [1]
  1. (Knoxville, TN)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENERGY RES COR
OSTI Identifier:
874222
Patent Number(s):
6344159
Assignee:
UT-Battelle, LLC (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; extruding; pitch; based; foam; apparatus; disclosed; steps; forming; viscous; passing; precursor; extrusion; tube; subjecting; temperature; gradient; varies; length; form; extruded; carbon; passageway; communicatively; connected; chamber; formed; paring; heating; mechanism; thermal; communication; predetermined; thermal communication; /264/

Citation Formats

Klett, James W. Method for extruding pitch based foam. United States: N. p., 2002. Web.
Klett, James W. Method for extruding pitch based foam. United States.
Klett, James W. Tue . "Method for extruding pitch based foam". United States. https://www.osti.gov/servlets/purl/874222.
@article{osti_874222,
title = {Method for extruding pitch based foam},
author = {Klett, James W.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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