POLYCRYSTALLINE MAGNETOCALORIC MATERIALS

What are described are polycrystalline magnetocaloric materials of the general formula MnaCobGecAx with A, B or C 0 x 0.5, 0.9 a 1.1, 0.9 b 1.1, 0.9 c 1.0, where up to 30 mol % of the Mn or Co may be replaced by Fe, Ni, Cr, V or Cu or up to 30 mol % of the Mn, Co or Ge may be replaced by vacancies,...

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Bibliographic Details
Main Author REESINK BENNIE
Format Patent
LanguageEnglish
Published 24.02.2011
Subjects
ADHESIVES
ALLOYS
BASIC ELECTRIC ELEMENTS
BLASTING
CHEMISTRY
COMBINED HEATING AND REFRIGERATION SYSTEMS
DYES
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
HEAT PUMP SYSTEMS
HEATING
INDUCTANCES
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MAGNETS
MANUFACTURE OR STORAGE OF ICE
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
MECHANICAL ENGINEERING
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WEAPONS
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Summary:What are described are polycrystalline magnetocaloric materials of the general formula MnaCobGecAx with A, B or C 0 x 0.5, 0.9 a 1.1, 0.9 b 1.1, 0.9 c 1.0, where up to 30 mol % of the Mn or Co may be replaced by Fe, Ni, Cr, V or Cu or up to 30 mol % of the Mn, Co or Ge may be replaced by vacancies, in which phases of the orthorhombic TiNiSi structure type and of the hexagonal Ni2In structure type are present at a temperature below −40° C.
Bibliography:Application Number: US20100852750