Boron nitride nanotube vibration damping optimization
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United States of America
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Jan 7, 2025
Grant Date -
Mar 31, 2022
app pub date -
Jan 7, 2020
filing date -
Jan 7, 2020
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Abstract
The structural integrity and viscoelastic performance of boron nitride nanotube (BNNT) materials may be improved through forming a compressed BNNT buckyweave. The BNNT buckyweave may be formed from a BNNT buckypaper having a bulk nanotube alignment (partial alignment) that may be maintained when forming the BNNT buckyweave, and compression may be parallel to and/or perpendicular to the partial alignment. The BNNT material may be viscoelastically-enhanced through, e.g., selection of synthesized BNNT material, impurity removal/reduction, BNNT alignment, isotopically enhancement, and compression relative to alignment. BNNT buckyweave s are introduced. The present approach provides viscoelastic behavior over temperatures from near absolute zero to near 1900 K. The transport of phonons along the BNNT molecules may be enhanced by utilizing isotopically enhanced BNNTs.
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