Patents Assigned to Universiteit van Amsterdam, faculteit der Natuurwetenschappen
  • Material for magnetic refrigeration preparation and application
    Patent number: 7069729
    Abstract: A material that can be used for magnetic refrigeration, wherein the material substantially has the general formula (AYB1?y)2+?C1?xDx) wherein A is selected from Mn and Co; B is selected from Fe and Cr; C and D are different and are selected from P, As, B, Se, Ge, Si and Sb; x and y each is a number in the range 0–1; and ? is a number from (?0.1)–(+0.1).
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: July 4, 2006
    Assignees: Stichting voor de Technische Wetenschappen, Universiteit van Amsterdam, faculteit der Natuurwetenschappen
    Inventors: Ekkehard Hubertus Brück, Ojiyed Tegusi, Frank Roelof De Boer
  • Magnetic material with cooling capacity, a method for the manufacturing thereof and use of such material
    Publication number: 20060117758
    Abstract: The invention relates to a material that can be used for magnetic refrigeration, wherein the material substantially has the general formula (AYB1-Y)2+?CWDXEZ Wherein: A is selected from Mn and Co; B is selected from Fe and Cr; of C, D and E at least two are different, have a non-vanishing concentration and are selected from P, B. Se, Ge, Ga, Si, Sn and Sb; wherein at least one of C, D and E is Ge or Si; W, X, Y and Z each is a number in the range 0-1, and W+X+Z=1; and?as a number from (?0.1)-(+0.1).
    Type: Application
    Filed: January 29, 2003
    Publication date: June 8, 2006
    Applicants: Stichting voor de Technische Weteneschappen, Universiteit van Amsterdam, faculteit der natuurwetenschappen, Wiskunde en Informatica
    Inventors: Ekkehard Brück, Ojiyed Tegusi, Frank De Boer