Pitch-based carbon foam and composites and uses thereof
Abstract
A thermally conductive carbon foam is provided, normally having a thermal conductivity of at least 40 W/m.multidot.K. The carbon foam usually has a specific thermal conductivity, defined as the thermal conductivity divided by the density, of at least about 75 W.multidot.cm.sup.3 /m.multidot..degree.K.multidot.gm. The foam also has a high specific surface area, typically at least about 6,000 m.sup.2 /m.sup.3. The foam is characterized by an x-ray diffraction pattern having "doublet" 100 and 101 peaks characterized by a relative peak split factor no greater than about 0.470. The foam is graphitic and exhibits substantially isotropic thermal conductivity. The foam comprises substantially ellipsoidal pores and the mean pore diameter of such pores is preferably no greater than about 340 microns. Other materials, such as phase change materials, can be impregnated in the pores in order to impart beneficial thermal properties to the foam. Heat exchange devices and evaporatively cooled heat sinks utilizing the foams are also disclosed.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174663
- Patent Number(s):
- 6673328
- Application Number:
- 09/519,559
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
- DOE Contract Number:
- AC05-96OR22464
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Klett, James W., Burchell, Timothy D., and Choudhury, Ashok. Pitch-based carbon foam and composites and uses thereof. United States: N. p., 2004.
Web.
Klett, James W., Burchell, Timothy D., & Choudhury, Ashok. Pitch-based carbon foam and composites and uses thereof. United States.
Klett, James W., Burchell, Timothy D., and Choudhury, Ashok. Tue .
"Pitch-based carbon foam and composites and uses thereof". United States. https://www.osti.gov/servlets/purl/1174663.
@article{osti_1174663,
title = {Pitch-based carbon foam and composites and uses thereof},
author = {Klett, James W. and Burchell, Timothy D. and Choudhury, Ashok},
abstractNote = {A thermally conductive carbon foam is provided, normally having a thermal conductivity of at least 40 W/m.multidot.K. The carbon foam usually has a specific thermal conductivity, defined as the thermal conductivity divided by the density, of at least about 75 W.multidot.cm.sup.3 /m.multidot..degree.K.multidot.gm. The foam also has a high specific surface area, typically at least about 6,000 m.sup.2 /m.sup.3. The foam is characterized by an x-ray diffraction pattern having "doublet" 100 and 101 peaks characterized by a relative peak split factor no greater than about 0.470. The foam is graphitic and exhibits substantially isotropic thermal conductivity. The foam comprises substantially ellipsoidal pores and the mean pore diameter of such pores is preferably no greater than about 340 microns. Other materials, such as phase change materials, can be impregnated in the pores in order to impart beneficial thermal properties to the foam. Heat exchange devices and evaporatively cooled heat sinks utilizing the foams are also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 06 00:00:00 EST 2004},
month = {Tue Jan 06 00:00:00 EST 2004}
}
Works referenced in this record:
Formulation of a Mathematical Process Model for the Foaming of a Mesophase Carbon Precursor
journal, January 1992
- Sandhu, S. S.; Hager, J. W.
- MRS Proceedings, Vol. 270
Glass-like carbons
journal, June 1969
- Noda, Tokiti; Inagaki, Michio; Yamada, Shigehiko
- Journal of Non-Crystalline Solids, Vol. 1, Issue 4
Novel Hybrid Composites Based on Carbon Foams
journal, January 1992
- Hager, Joseph W.; Lake, Max L.
- MRS Proceedings, Vol. 270
Simple Process Produces High Modulus Carbon Fibers at Much Lower Cost
journal, January 1996
- Lake, Max
- Materials Technology, Vol. 11, Issue 4
Preparation, Structure and Application of Mesophase Pitches Prepared from Aromatic Hydrocarbons Using HF/BF3 as Catalysts
journal, January 1992
- Mochida, Isao; Korai, Yozo; Shimizu, Kiyoyuki
- TANSO, Vol. 1992, Issue 155
Pitch-based processing of carbon-carbon composites
journal, January 1989
- White, J. L.; Sheaffer, P. M.
- Carbon, Vol. 27, Issue 5
Vitreous carbon — A new form of carbon
journal, November 1967
- Cowlard, F. C.; Lewis, J. C.
- Journal of Materials Science, Vol. 2, Issue 6
The formation of graphitizing carbons from the liquid phase
journal, October 1965
- Brooks, J. D.; Taylor, G. H.
- Carbon, Vol. 3, Issue 2
Structure, microtexture, and optical properties of anthracene and saccharose-based carbons
journal, January 1989
- Rouzaud, J. N.; Oberlin, A.
- Carbon, Vol. 27, Issue 4
Widealized Strut Geometries for Open-Celled Foams
journal, January 1992
- Hager, Joseph W.
- MRS Proceedings, Vol. 270
High-thermal-conductivity, mesophase-pitch-derived carbon foams: effect of precursor on structure and properties
journal, January 2000
- Klett, James; Hardy, Rommie; Romine, Ernie
- Carbon, Vol. 38, Issue 7, p. 953-973
Flexible towpreg for the fabrication of high thermal conductivity carbon/carbon composites
journal, January 1995
- Klett, J. W.; Edie, D. D.
- Carbon, Vol. 33, Issue 10
Modelling the mechanical behavior of cellular materials
journal, March 1989
- Gibson, L. J.
- Materials Science and Engineering: A, Vol. 110
Pulse Method of Measuring Thermal Diffusivity at High Temperatures
journal, April 1963
- Cowan, Robert D.
- Journal of Applied Physics, Vol. 34, Issue 4
Evaluation of naphthalene-derived mesophase pitches as a binder for carbon-carbon composites
journal, January 1993
- Fujiura, Ryuji; Kojima, Takashi; Kanno, Koichi
- Carbon, Vol. 31, Issue 1
Application of laser flash method to penetrative materials for measurement of thermal diffusivity
journal, February 1990
- Inoue, Katsunori
- High Temperature Technology, Vol. 8, Issue 1
Characterization of high thermal conductivity carbon fibers and a self-reinforced graphite panel
journal, January 1998
- Adams, P. M.; Katzman, H. A.; Rellick, G. S.
- Carbon, Vol. 36, Issue 3
Microcellular Foams Prepared From Demixed Polymer Solutions
journal, January 1990
- Aubert, J. H.
- MRS Proceedings, Vol. 207
Metallic foams: their production, properties and applications
journal, July 1983
- Davies, G. J.; Zhen, Shu
- Journal of Materials Science, Vol. 18, Issue 7
Structural development in mesophase pitch based carbon fibers produced from naphthalene
journal, January 1997
- Jones, S. P.; Fain, C. C.; Edie, D. D.
- Carbon, Vol. 35, Issue 10-11