Maryland's Defense Patent Database

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Carbon nanopipes and ductwork with nanometric walls and methods of making the same

Patent image
NRL

A carbon nanopipe comprising a durable graphitizable carbon wall of tunable thickness of about 10-500 nm formed by exposing a silica fiber network to a carbon precursor vapor and thereby depositing a carbon film onto the silica fiber network at a temperature suitable for complete pyrolysis of the carbon precursor and removing the silica fibers. The atmosphere of the step of depositing is controlled by a two-stage gas manifold wherein stage 1 purges the reaction chamber with pure argon and stage 2 introduces the carbon precursor.

Inventors: 
Lytle, Justin C.; Zimmerman, Trevor N.; Rolison, Debra R.
Patent Number: 
Technical domain: 
Textiles and Paper
FIle Date: 
2012-05-25
Grant Date: 
2015-04-28
Grant time: 
1,068 days
Grant time percentile rank: 
19
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY