Patent · US Active

Multilayer iron nitride hard magnetic materials

US10573439B2 · kind B2 · utility

3Cited by

16References

32Claims

0Family size

Assignee

Regents of the University of Minnesota · US

Inventors

Jian-Ping Wang · Shoreview, US
Yanfeng Jiang · Minneapolis, US

Key dates

Filing date	Aug 5, 2015
Grant date	Feb 25, 2020
Priority date	—
Expiry date	Jan 17, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH02K1/02
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The disclosure describes multilayer hard magnetic materials including at least one layer including α″-Fe16N2 and at least one layer including α″-Fe16(NxZ1-x)2 or a mixture of α″-Fe16N2 and α″-Fe16Z2, where Z includes at least one of C, B, or O, and x is a number greater than zero and less than one. The disclosure also describes techniques for forming multilayer hard magnetic materials including at least one layer including α″-Fe16N2 and at least one layer including α″-Fe16(NxZ1-x)2 or a mixture of α″-Fe16N2 and α″-Fe16Z2 using chemical vapor deposition or liquid phase epitaxy.

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