Global to push GA events into
skip to main content

Title: Magneto-carbonization method for production of carbon fiber, and high performance carbon fibers made thereby

Method for the preparation of carbon fiber from fiber precursor, wherein the fiber precursor is subjected to a magnetic field of at least 3 Tesla during a carbonization process. The carbonization process is generally conducted at a temperature of at least 400.degree. C. and less than 2200.degree. C., wherein, in particular embodiments, the carbonization process includes a low temperature carbonization step conducted at a temperature of at least or above 400.degree. C. or 500.degree. C. and less than or up to 1000.degree. C., 1100.degree. C., or 1200.degree. C., followed by a high temperature carbonization step conducted at a temperature of at least or above 1200.degree. C. In particular embodiments, particularly in the case of a polyacrylonitrile (PAN) fiber precursor, the resulting carbon fiber may possess a minimum tensile strength of at least 600 ksi, a tensile modulus of at least 30 Msi, and an ultimate elongation of at least 1.5%.
Inventors:
; ; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1374565
Assignee:
UT-BATTELLE, LLC ORNL
Patent Number(s):
9,725,829
Application Number:
13/833,834
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2013 Mar 15
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Other works cited in this record:

Carbon fiber production
patent, April 1977

Manufacture of carbon fibres
patent, April 1980

Apparatus for production of graphite fibers
patent, March 1982

Carbon fiber manufacturing via plasma technology
patent, April 2002

Diagnostic monitor for carbon fiber processing
patent, April 2002

Thermally conductive polymer sheet
patent, November 2003

Apparatus and method for oxidation and stabilization of polymeric materials
patent, May 2009

Apparatus and method for stabilization or oxidation of polymeric materials
patent, January 2010

Apparatus and method for oxidation and stabilization of polymeric materials
patent, August 2010

System to continuously produce carbon fiber via microwave assisted plasma processing
patent, November 2010

Method for making carbon fabric and product thereof
patent, April 2011

Method for making carbon fabric and product thereof
patent-application, June 2005

Carbon nanotubes and method of manufacturing same, electron emission source, and display
patent-application, March 2006

Low electric conductivity high heat radiation polymeric composition and molded body
patent-application, October 2007

Oil Agent for Precursor Fiber of Carbon Fiber, Carbon Fiber and Production Method of the Carbon Fiber
patent-application, June 2008

Low electric conductivity high heat radiation polymeric composition and molded body
patent-application, October 2008

Hollow carbon fibres and process for their production
patent-application, May 2011

Stabilization of polyacrylonitrile precursor yarns
patent-application, June 2012

Processing and mechanical properties of a porous low carbon steel with a controlled porous structure by imposition of a static magnetic field
journal, February 2006
  • Chino, Yasumasa; Mabuchi, Mamoru; Sassa, Kensuke
  • Materials Science and Engineering: A, Vol. 417, Issue 1-2, p. 281-286
  • DOI: 10.1016/j.msea.2005.11.015

Strategies for Post-Synthesis Alignment and Immobilization of Carbon Nanotubes
journal, December 2010
  • Druzhinina, Tamara; Hoeppener, Stephanie; Schubert, Ulrich S.
  • Advanced Materials, Vol. 23, Issue 8, p. 953-970
  • DOI: 10.1002/adma.201003509

Magnetization for lower temperature, selective diamond and carbon nanotube formation: A milestone in carbon physicochemical condensation
journal, March 2004
  • Little, Reginald B.; Goddard, Robert
  • Journal of Applied Physics, Vol. 95, Issue 5, p. 2702-2712
  • DOI: 10.1063/1.1643784

Application of a high magnetic field in the carbonization process to increase the strength of carbon fibers
journal, September 2002

Polycarbonate Crystallization by Vapor-Grown Carbon Fiber with and without Magnetic Field
journal, September 2003
  • Takahashi, Tatsuhiro; Yonetake, Koichiro; Koyama, Kiyohito
  • Macromolecular Rapid Communications, Vol. 24, Issue 13, p. 763-767
  • DOI: 10.1002/marc.200350021

Similar records in DOepatents and OSTI.GOV collections: