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:
Oct. 18, 2022
Filed:
Aug. 24, 2020
Rogers Corporation, Chandler, AZ (US);
Li Zhang, Luzhou, CN;
Yajie Chen, Brighton, MA (US);
ROGERS CORPORATION, Chandler, AZ (US);
Abstract
In an aspect, a composition comprises a plurality of magnetic particles. The magnetic particles each independently comprise a nickel ferrite core having the formula NiMPeO, wherein M is at least one of Zn, Mg, Co, Cu, Al, Mn, or Cr; x is 0 to 0.95, and y=−0.5 to 0.5; and an iron nickel shell at least partially surrounding the core, wherein the iron nickel shell comprises iron, nickel, and optionally M. In another aspect, a method of forming the magnetic particles comprises heat treating a plurality of nickel ferrite particles in a hydrogen atmosphere to form the plurality of magnetic particles having the iron nickel shell on the nickel ferrite core. In yet another aspect, a composite can comprise the magnetic particles and a polymer.