Patents Assigned to Technology Foundation STW
  • METHOD FOR PRODUCING METAL-BASED MATERIALS FOR MAGNETIC COOLING OR HEAT PUMPS
    Publication number: 20110061775
    Abstract: The process for preparing metal-based materials for magnetic cooling or heat pumps comprises the following steps: a) reacting chemical elements and/or alloys in a stoichiometry which corresponds to the metal-based material in the solid phase and/or liquid phase, b) if appropriate converting the reaction product from stage a) to a solid, c) sintering and/or heat treating the solid from stage a) or b), d) quenching the sintered and/or heat treated solid from stage c) at a cooling rate of at least 100 K/s.
    Type: Application
    Filed: April 27, 2009
    Publication date: March 17, 2011
    Applicants: Technology Foundation STW, University of Amsterdam
    Inventors: Ekkehard Brueck, Thanh Trung Nguyen
  • POLYCRYSTALLINE MAGNETOCALORIC MATERIALS
    Publication number: 20110041513
    Abstract: 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.
    Type: Application
    Filed: August 9, 2010
    Publication date: February 24, 2011
    Applicant: Technology Foundation STW
    Inventor: Bennie REESINK