Plasma-assisted conversion of solid hydrocarbon to diamond
- Santa Fe, NM
- Los Alamos, NM
- Wilmington, DE
A process of preparing diamond, e.g., diamond fiber, by subjecting a hydrocarbon material, e.g., a hydrocarbon fiber, to a plasma treatment in a gaseous feedstream for a sufficient period of time to form diamond, e.g., a diamond fiber is disclosed. The method generally further involves pretreating the hydrocarbon material prior to treatment with the plasma by heating within an oxygen-containing atmosphere at temperatures sufficient to increase crosslinking within said hydrocarbon material, but at temperatures insufficient to melt or decompose said hydrocarbon material, followed by heating at temperatures sufficient to promote outgassing of said crosslinked hydrocarbon material, but at temperatures insufficient to convert said hydrocarbon material to carbon.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- Assignee:
- Regents of University of California Office of Technology Transfer (Alameda, CA)
- Patent Number(s):
- US 5560897
- OSTI ID:
- 870619
- Country of Publication:
- United States
- Language:
- English
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journal | April 1993 |
Diamond synthesis via a low-pressure solid-state-source process
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journal | September 1993 |
Crystallization of diamond below 1 atm from carbon–metal mixtures
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journal | January 1993 |
Orientation relationship between chemical vapor deposited diamond and graphite substrates
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journal | January 1993 |
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method
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pretreating
prior
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oxygen-containing
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insufficient
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