公开(公告)号：US20180005735A1

公开(公告)日：2018-01-04

申请号：US15535621

申请日：2015-12-07

Applicant: BASF SE

Inventor： Florian SCHARF ,  Markus SCHWIND ,  David VAN ASTEN ,  Steven Alan JACOBS

IPC: H01F1/01 ,  F25B21/00

CPC classification number: H01F1/012 ,  F25B21/00

Abstract: A magnetocaloric cascade contains a sequence of magnetocaloric material layers having different Curie temperatures TC, wherein the magnetocaloric material layers include a cold-side outer layer, a hot-side outer layer and at least three inner layers between the cold-side outer layer and the hot-side outer layer, and each pair of next neighboring magnetocaloric layers of the magnetocaloric cascade has a respective Curie-temperature difference amount ΔTC between their respective Curie temperatures, wherein the hot-side outer layer or the cold-side outer layer or both the hot-side and cold-side outer layer exhibits a larger ratio mΔSmax/ΔTC in comparison with any of the inner layers, m denoting the mass of the respective magnetocaloric material layer and ΔSmax denoting a maximum amount of isothermal magnetic entropy change achievable in a magnetic phase transition of the respective magnetocaloric material layer.

公开(公告)号：US20170372821A1

公开(公告)日：2017-12-28

申请号：US15536036

申请日：2015-12-07

Applicant: BASF SE

Inventor： Florian SCHARF ,  Markus SCHWIND ,  David VAN ASTEN ,  Steven Alan JACOBS

IPC: H01F1/01 ,  F25B21/00

CPC classification number: H01F1/012 ,  C08K5/0016 ,  C08K5/06 ,  C08K5/095 ,  C08K5/101 ,  C08K5/151 ,  C09D133/12 ,  C09D139/08 ,  F25B21/00 ,  F25B2321/002 ,  G02F1/13363 ,  C08L33/12 ,  C08L39/08

Abstract: A magnetocaloric cascade contains a sequence of magnetocaloric material layers having different Curie temperatures TC, wherein the magnetocaloric material layers include a cold-side outer layer, a hot-side outer layer and at least three inner layers between the cold-side outer layer and the hot-side outer layer.