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Fine barium titanate powder

  • US 8,367,206 B2
  • Filed: 03/12/2010
  • Issued: 02/05/2013
  • Est. Priority Date: 03/12/2009
  • Status: Active Grant
First Claim
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1. A barium titanate based powder represented by Chemical Formula 1:


  • (BaxR1r1R2r2)(TiyR3r3R4r4)O3



    [Chemical Formula 1]wherein R1 is at least one element selected from the group consisting of yttrium (Y) and lanthanoids;

    R2 is at least one element selected from the group consisting of magnesium (Mg), calcium (Ca) and strontium (Sr);

    R3 includes phosphorus (P) and niobium (Nb);

    R4 is at least one element selected from the group consisting of aluminum (Al), vanadium (V), chrome (Cr), manganese (Mn), cobalt (Co), zirconium (Zr) and tantalum (Ta);

    r1 and r3 independently represent a real number greater than 0 and equal to or less than 0.05;

    r2 and r4 independently represent a real number greater than 0 and equal to or less than 0.1; and

    (x+r1+r2)/(y+r3+r4) is a real number ranging from 0.85 to 1.15.

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