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Piezoelectric characterization of boron nitride nanotube-polyurethane composites
Author(s): Dongwon Lee; Fuh-Gwo Yuan; Catharine Fay; Sang-Hyon Chu; Cheol Park
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Paper Abstract

Boron nitride nanotubes (BNNTs) have exceptional thermal stability, thermal conductivity, mechanical properties, neutron radiation shielding, and piezoelectricity. Due to their multifunctional properties, BNNTs are potential candidates for sensory materials in harsh environments. Brittleness and non-conformity of conventional piezoelectric ceramics have limited their broad applications. Flexible and ultra-light piezoelectric sensors based on BNNTs could be an alternative solution in high temperature, high radiation, high shock, and severe vibration environments. In this study, BNNTPolyurethane (PU) composites were fabricated and their converse piezoelectric constant of d33 was assessed using a laser Doppler vibrometer (LDV). This study demonstrated that BNNT could be an excellent piezoelectric nanofiller for flexible sensor applications.

Paper Details

Date Published: 13 May 2019
PDF: 8 pages
Proc. SPIE 10982, Micro- and Nanotechnology Sensors, Systems, and Applications XI, 1098233 (13 May 2019); doi: 10.1117/12.2513999
Show Author Affiliations
Dongwon Lee, North Carolina State Univ. (United States)
National Institute of Aerospace (United States)
Fuh-Gwo Yuan, North Carolina State Univ. (United States)
National Institute of Aerospace (United States)
Catharine Fay, NASA Langley Research Ctr. (United States)
Sang-Hyon Chu, National Institute of Aerospace (United States)
Cheol Park, NASA Langley Research Ctr. (United States)


Published in SPIE Proceedings Vol. 10982:
Micro- and Nanotechnology Sensors, Systems, and Applications XI
Thomas George; M. Saif Islam, Editor(s)

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