The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2017
Filed:
Mar. 29, 2013
National Institute of Aerospace Associates, Hampton, VA (US);
The United States of America, As Represented BY the Administrator of the National Aeronautics and Space Administration, Washington, DC (US);
Jin Ho Kang, Newport News, VA (US);
Robert G. Bryant, Lightfoot, VA (US);
Cheol Park, Yorktown, VA (US);
Godfrey Sauti, Hampton, VA (US);
Luke Gibbons, Williamsburg, VA (US);
Sharon Lowther, Hampton, VA (US);
Sheila A. Thibeault, Hampton, VA (US);
Catharine C. Fay, Yorktown, VA (US);
National Institute of Aerospace Associates, Hampton, VA (US);
The United States of America as represented by the Administration of NASA, Washington, DC (US);
Abstract
Multifunctional Boron Nitride nanotube-Boron Nitride (BN—BN) nanocomposites for energy transducers, thermal conductors, anti-penetrator/wear resistance coatings, and radiation hardened materials for harsh environments. An all boron-nitride structured BN—BN composite is synthesized. A boron nitride containing precursor is synthesized, then mixed with boron nitride nanotubes (BNNTs) to produce a composite solution which is used to make green bodies of different forms including, for example, fibers, mats, films, and plates. The green bodies are pyrolized to facilitate transformation into BN—BN composite ceramics. The pyrolysis temperature, pressure, atmosphere and time are controlled to produce a desired BN crystalline structure. The wholly BN structured materials exhibit excellent thermal stability, high thermal conductivity, piezoelectricity as well as enhanced toughness, hardness, and radiation shielding properties. By substituting with other elements into the original structure of the nanotubes and/or matrix, new nanocomposites (i.e., BCN, BCSiN ceramics) which possess excellent hardness, tailored photonic bandgap and photoluminescence, result.