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. 29, 2020
Filed:
Jun. 05, 2019
Government of the United States, As Represented BY the Secretary of the Air Force, Wright-Patterson AFB, OH (US);
Dean R. Evans, Beavercreek, OH (US);
Yuri Barnakov, Nashville, TN (US);
Ighodalo U. Idehenre, Tipp City, OH (US);
Sergey A. Basun, Beavercreek, OH (US);
United States of America as represented by the Secretary of the Air Force, Wright-Patterson AFB, OH (US);
Abstract
A method for synthesizing ferroelectric nanoparticles comprises introducing solutions of Ba(NO)(1 mmol) in 5 ml of deionized water, NaOH (12.5 mmol) in 5 ml of deionized water, Ti(IV) n-butoxide (1 mmol) in 5 ml of 1-butanol, 2.5 ml of oleic acid, and 5 ml of 1-butanol into a Teflon-lined autoclave vessel; heating the vessel to 135° C. for 18 h, resulting in barium titanate nanoparticles; and ball-milling the barium titanate nanoparticles in a solution of oleic acid and heptane to create a colloidal suspension of nanoparticles. The weight ratio of barium titanate:oleic acid:heptane is 1:1:20. The ball-milling step may further comprise introducing a slurry comprising 0.1 g of synthesized BaTiOnanocubes, 0.1 g of oleic acid, and 15 mL of heptane into a ball-mill crucible filled with 2 mm ZrOballs; subjecting the slurry to rotation at 500 rpm for 5 hours; converting the resulting nanoparticle suspension to a powder using anhydrous ethanol with sequential washing/drying at ambient temperature.