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Primary Examiner: Smith, John D.
Assistant Examiner:
Attorney: Knobbe, Martens

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Title: Process for bonding carbon substrates using particles of a thermally stable solid

Abstract: An improved process for providing a bond between carbon substrates using particles of a thermally stable solid is described. In particular, a laminate of a porous carbon substrate and a relatively non-porous carbon substrate using finely divided particles of a thermally stable solid which are in contact with and between both substrates is heated in the presence of a carbonizable gas, such as methane, in a chamber such that the gas contacts the carbon substrates and the particles so that a mutual coating of pyrolytic carbon is deposited on the exposed surfaces of all components and bonds them together. More than two carbon substrates can be bonded using the particles as interlayers between the substrates. The pyrolytic carbon coated composite products are particularly useful as electrodes.


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Inventors: Torbet, Christopher J. (Ann Arbor, MI, US)

Application Number: 951333
Filing Date: 1978-10-16
Publication_date: 1980-12-23
Assignee: The Fluorocarbon Company (Anaheim, CA)
Primary Class(es): 427/113 156/283, 156/344, 427/203, 427/249.1, 427/249.6, 427/419.7, 428/408
Other Classes:
US Patent Ref:
2979814Apr, 1961Steinberg428/408.
3138435Jun, 1964Diefendorf427/249.
3399969Sep, 1968Bokros et al.427/249.
3442617May, 1969Turkat et al.427/249.
3547676Dec, 1970Bokros et al.427/249.
3549847Dec, 1970Clark428/408.
3666526May, 1972Ettinger et al.427/249.
3725110Apr, 1973Rodgers et al.427/249.
3852107Dec, 1974Lorkin et al.427/113.
3900540Aug, 1975Robba et al.423/458.
3927186Dec, 1975Vinton et al.423/447.
3944686Mar, 1976Froberg427/249.
4022875May, 1977Vinton et al.423/445.
4048953Sep, 1977Froberg118/49.
4067956Jan, 1978Franklin et al.423/445.

Other Refs: 744260929465302856
Jul, 1970BE
Jun, 1963GB
May, 1977SU
Other References: Knippenberg et al., "Carbon Foam" Phillips Technical Revue vol. 36, pp. 93-103, 1976.