• CN 101,971,381 B
  • Filed: 03/18/2009
  • Issued: 10/14/2015
  • Est. Priority Date: 03/19/2008
  • Status: Active Grant
First Claim
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1. piezoelectric, it comprises the perovskite composite oxide represented by general formula (1):

  • xABO 3-yA′

    BO 3-zA″


    O 3Wherein A is Bi element;

    A '"'"' is La;

    B is Ti and Zn;

    A " is Ba;

    B '"'"' is for being selected from least one element in divalence, trivalent, pentavalent, tetravalence and hexad;

    And x is the value of 0.10-0.95, y be greater than 0 and be less than or equal to 0.5 value, and z is the value of 0-0.7, and condition is x+y+z=1.

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