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Title: Magnesium doping of boron nitride nanotubes

A method to fabricate boron nitride nanotubes incorporating magnesium diboride in their structure. In a first embodiment, magnesium wire is introduced into a reaction feed bundle during a BNNT fabrication process. In a second embodiment, magnesium in powder form is mixed into a nitrogen gas flow during the BNNT fabrication process. MgB.sub.2 yarn may be used for superconducting applications and, in that capacity, has considerably less susceptibility to stress and has considerably better thermal conductivity than these conventional materials when compared to both conventional low and high temperature superconducting materials.
Inventors:
;
Issue Date:
OSTI Identifier:
1184532
Assignee:
Jefferson Science Associates, LLC (Newport News, VA) ORO
Patent Number(s):
9,059,361
Application Number:
14/077,256
Contract Number:
AC05-84ER40150
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY

Works referenced in this record:

A convenient catalytic approach to synthesize straight boron nitride nanotubes using synergic nitrogen source
journal, June 2007

Effective synthesis of surface-modified boron nitride nanotubes and related nanostructures and their hydrogen uptake
journal, May 2008
  • Terao, T.; Bando, Y.; Mitome, M.
  • Physica E: Low-dimensional Systems and Nanostructures, Vol. 40, Issue 7, p. 2551-2555
  • DOI: 10.1016/j.physe.2007.10.014

Boron nitride nanotubes as nanocrucibles for morphology and phase transformations in encapsulated nanowires of the Mg–O system
journal, June 2004