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, 2019
Filed:
May. 18, 2015
Peking University, Beijing, CN;
Jilin University, Changchun, CN;
Daining Fang, Beijing, CN;
Hao Zhou, Beijing, CN;
Yongmao Pei, Beijing, CN;
Hongwei Zhao, Beijing, CN;
Peking University, Beijing, CN;
Abstract
A method for testing a local magnetomechanical coupling coefficient of a magnetic material includes defining a square of a local magnetomechanical coupling coefficient kas a the ratio of a magnetic energy stored in a magnetic material to an input reversible mechanical work, and characterizing the local magnetomechanical coupling coefficient of the magnetic material by measuring nano-indentation load-depth curves of the magnetic material under both situations of a saturated magnetic field and an unsaturated magnetic field. The method is simple in operation and has the advantages in local performance test of composite materials and other heterogeneous materials and also in small-scale performance test of nano-films.