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:
Feb. 19, 2002
Filed:
May. 19, 1999
Robert T. Paine, Albuquerque, NM (US);
William J. Kroenke, Albuquerque, NM (US);
Eugene A. Pruss, Albuquerque, NM (US);
University of New Mexico, Albuquerque, NM (US);
Abstract
The present invention involves a process and system for producing spherical BN O particles that are converted to crystalline BN. The process involves adding a boron compound to an aqueous solution, creating an aerosol spray from the solution in the form of aerosol droplets using an aerosol generator. The aerosol droplets are fed with an inert carrier gas into a heated furnace at a preset flow rate while simultaneously injecting a gaseous nitriding agent into the heated furnace in a direct proportion to the flow rate of the carrier gas containing the aerosol droplets whereby a precursor of spherically shaped BN O particles are formed which are further heat treated into particles of spherically shaped BN having a turbostratic or hexagonal structure.