Patent · US Active

Method for fabricating a functionally-graded monolithic sintered working component for magnetic heat exchange and an article for magnetic heat exchange

US9978487B2 · kind B2 · utility

33Cited by

3References

39Claims

0Family size

Assignee

Vacuumschmelze GmbH & Co. KG · DE

Inventors

Matthias Katter · Erlangen, DE
Alexander Barcza · Hanau, DE
Volker Zellmann · Gelnhausen, DE

Key dates

Filing date	Aug 17, 2011
Grant date	May 22, 2018
Priority date	—
Expiry date	Dec 6, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24992
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An article for magnetic heat exchange includes a functionally-graded monolithic sintered working component including La1-aRa(Fe1-x-yTyMx)13HzCb with a NaZn13-type structure. M is one or more of the elements from the group consisting of Si and Al, T is one or more of the elements from the group consisting of Mn, Co, Ni, Ti, V and Cr and R is one or more of the elements from the group consisting of Ce, Nd, Y and Pr. A content of the one or more elements T and R, if present, a C content, if present, and a content of M varies in a working direction of the working component and provides a functionally-graded Curie temperature. The functionally-graded Curie temperature monotonically decreases or monotonically increases in the working direction of the working component.

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