Skip to Content
Find More Like This
Return to Search

MAGNETO-CARBONIZATION METHOD FOR PRODUCTION OF CARBON FIBER, AND HIGH PERFORMANCE CARBON FIBERS MADE THEREBY

United States Patent Application

20140265038
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
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%.
Naskar, Amit K. (Knoxville, TN), Ozcan, Soydan (Oak Ridge, TN), Eberle, Claude C. (Knoxville, TN), Abdallah, Mohamed Gabr (Salt Lake City, UT), Mackiewicz Ludtka, Gail (Oak Ridge, TN), Ludtka, Gerard Michael (Oak Ridge, TN), Paulauskas, Felix Leonard (Knoxville, TN), Rivard, John Daniel Kennedy (Washington, DC)
UT-BATTELLE, LLC (Oak Ridge TN)
13/ 833,834
March 15, 2013
[0001] This invention was made with government support under Prime Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.