Patents Assigned to TRIDELTA Hartferrite GmbH
  • Magnetically hard material
    Patent number: 8828265
    Abstract: The invention relates to a modified strontium ferrite of the general chemical formula: Sr1-xLaxFe12-yCoyO19; in which x=y=0.01-1.00 or x=0.15 and y=x/1.6n to =x/2.6n, where n is the Fe2O3:SrO ratio used and may be 5-6. According to the invention, lanthanum and cobalt are added in an amount such that 0.14?x?0.145 and 0.14?y?0.145. The modified strontium ferrite thus prepared has excellent magnetic properties with regard to the remanence BR, the coercive force HCJ and the ratio of HK to HCJ.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: September 9, 2014
    Assignee: TRIDELTA Hartferrite GmbH
    Inventor: Kevin Mikenda
  • MAGNETICALLY HARD MATERIAL
    Publication number: 20100155651
    Abstract: The invention relates to a modified strontium ferrite of the general chemical formula: Sr1-xLaxFe12-yCoyO19; in which x=y=0.01-1.00 or x=0.15 and y=x/1.6n to =x/2.6n, where n is the Fe2O3:SrO ratio used and may be 5-6. According to the invention, lanthanum and cobalt are added in an amount such that 0.14?x?0.145 and 0.14?y?0.145. The modified strontium ferrite thus prepared has excellent magnetic properties with regard to the remanence BR, the coercive force HCJ and the ratio of HK to HCJ.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 24, 2010
    Applicant: TRIDELTA Hartferrite GmbH
    Inventor: Kevin Mikenda