Patent · US Active

Method for making soft magnetic material having fine grain structure

US7905965B2 · kind B2 · utility

2Cited by

4References

36Claims

0Family size

Assignee

General Electric Company · US

Inventors

Michael Francis Xavier Gigliotti · Scotia, US
Richard DiDomizio · Scotia, US
Luana Emiliana Iorio · Clifton Park, US
Francis Johnson · Minneapolis, US
Pazhayannur Ramanathan Subramanian · Niskayuna, US
Mahesh Chandran · Bengaluru, IN

Key dates

Filing date	Nov 28, 2006
Grant date	Mar 15, 2011
Priority date	—
Expiry date	Oct 16, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH01F41/024
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method of making a soft magnetic material with fine grain structure is provided. The method includes the steps of providing a soft magnetic starting material; heating the soft magnetic starting material to a temperature at which the material has a microstructure comprising at least two solid phases; and deforming the soft magnetic starting material. An electrical device comprising a magnetic component is provided. The magnetic component comprises a soft magnetic material having a grain size less than about 3 micrometers. The material has a composition that comprises at least two solid phases at temperatures greater than about 500° C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.