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Boron Nitride Nanotube: Synthesis and ApplicationsScientists have predicted that carbon's immediate neighbors on the periodic chart, boron and nitrogen, may also form perfect nanotubes, since the advent of carbon nanotubes (CNTs) in 1991. First proposed then synthesized by researchers at UC Berkeley in the mid 1990's, the boron nitride nanotube (BNNT) has proven very difficult to make until now. Herein we provide an update on a catalyst-free method for synthesizing highly crystalline, small diameter BNNTs with a high aspect ratio using a high power laser under a high pressure and high temperature environment first discovered jointly by NASA/NIA JSA. Progress in purification methods, dispersion studies, BNNT mat and composite formation, and modeling and diagnostics will also be presented. The white BNNTs offer extraordinary properties including neutron radiation shielding, piezoelectricity, thermal oxidative stability (> 800 C in air), mechanical strength, and toughness. The characteristics of the novel BNNTs and BNNT polymer composites and their potential applications are discussed.
Document ID
20140004051
Document Type
Conference Paper
Authors
Tiano, Amanda L.
(National Inst. of Aerospace Hampton, VA, United States)
Park, Cheol
(National Inst. of Aerospace Hampton, VA, United States)
Lee, Joseph W.
(NASA Langley Research Center Hampton, VA, United States)
Luong, Hoa H.
(NASA Langley Research Center Hampton, VA, United States)
Gibbons, Luke J.
(National Inst. of Aerospace Hampton, VA, United States)
Chu, Sang-Hyon
(National Inst. of Aerospace Hampton, VA, United States)
Applin, Samantha I.
(National Inst. of Aerospace Hampton, VA, United States)
Gnoffo, Peter
(NASA Langley Research Center Hampton, VA, United States)
Lowther, Sharon
(NASA Langley Research Center Hampton, VA, United States)
Kim, Hyun Jung
(National Inst. of Aerospace Hampton, VA, United States)
Danehy, Paul M.
(NASA Langley Research Center Hampton, VA, United States)
Inman, Jennifer A.
(NASA Langley Research Center Hampton, VA, United States)
Jones, Stephen B.
(NASA Langley Research Center Hampton, VA, United States)
Kang, Jin Ho
(National Inst. of Aerospace Hampton, VA, United States)
Sauti, Godfrey
(National Inst. of Aerospace Hampton, VA, United States)
Thibeault, Sheila A.
(NASA Langley Research Center Hampton, VA, United States)
Yamakov, Vesselin
(National Inst. of Aerospace Hampton, VA, United States)
Wise, Kristopher E.
(NASA Langley Research Center Hampton, VA, United States)
Su, Ji
(NASA Langley Research Center Hampton, VA, United States)
Fay, Catharine C.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
April 29, 2014
Publication Date
March 9, 2014
Subject Category
Nonmetallic Materials
Report/Patent Number
NF1676L-18228
Meeting Information
SPIE Smart Structures/NDE 2014(San Diego, CA)
Funding Number(s)
WBS: WBS 713030.01.07.05.01
Distribution Limits
Public
Copyright
Public Use Permitted.

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