Magnesium doping of boron nitride nanotubes

Legg, Robert; Jordan, Kevin

Title: Magnesium doping of boron nitride nanotubes

Patent · Tue Jun 16 00:00:00 EDT 2015

OSTI ID:1184532

Legg, Robert; Jordan, Kevin

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.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-84ER40150

Assignee:: Jefferson Science Associates, LLC (Newport News, VA)

Patent Number(s):: 9,059,361

Application Number:: 14/077,256

OSTI ID:: 1184532

Country of Publication:: United States

Language:: English

References (6)

Integrated rig for the production of boron nitride nanotubes via the pressurized vapor-condenser method Smith, Michael W.; Jordan, Kevin C. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8679300 US Patent Document 8,679,300	patent	March 2014
Superconducting MgB2 Nanowires Wu, Y.; Messer, B.; Yang, P. Advanced Materials, Vol. 13, Issue 19 https://doi.org/10.1002/1521-4095(200110)13:19<1487::AID-ADMA1487>3.0.CO;2-Q	journal	September 2001
A convenient catalytic approach to synthesize straight boron nitride nanotubes using synergic nitrogen source Dai, Jun; Xu, Liqiang; Fang, Zengli Chemical Physics Letters, Vol. 440, Issue 4-6, p. 253-258 https://doi.org/10.1016/j.cplett.2007.04.059	journal	June 2007
Effective synthesis of surface-modified boron nitride nanotubes and related nanostructures and their hydrogen uptake Terao, T.; Bando, Y.; Mitome, M. Physica E: Low-dimensional Systems and Nanostructures, Vol. 40, Issue 7, p. 2551-2555 https://doi.org/10.1016/j.physe.2007.10.014	journal	May 2008
Boron nitride formation on magnesium studied by ab initio calculations Riikonen, S.; Foster, A. S.; Krasheninnikov, A. V. Physical Review B, Vol. 81, Issue 12 https://doi.org/10.1103/PhysRevB.81.125442	journal	March 2010
Boron nitride nanotubes as nanocrucibles for morphology and phase transformations in encapsulated nanowires of the Mg–O system Golberg, Dmitri; Bando, Yoshio; Mitome, Masanori Acta Materialia, Vol. 52, Issue 11, p. 3295-3303 https://doi.org/10.1016/j.actamat.2004.03.025	journal	June 2004

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