发明专利
JP2012072037A Dielectric ceramic composition, method for producing the same and ceramic electronic part
审中-公开
基本信息:
- 专利标题： Dielectric ceramic composition, method for producing the same and ceramic electronic part
- 专利标题（中）：电介质陶瓷组合物，其制造方法和陶瓷电子部件
- 申请号：JP2010219775 申请日：2010-09-29
- 公开(公告)号：JP2012072037A 公开(公告)日：2012-04-12
- 发明人： TAKEDA SAORI , SATO FUMIAKI , SATO ATSUSHI , HOSONO MASAKAZU
- 申请人： Tdk Corp , Tdk株式会社
- 专利权人： Tdk Corp,Tdk株式会社
- 当前专利权人： Tdk Corp,Ｔｄｋ株式会社
- 优先权： JP2010219775 2010-09-29
- 主分类号： C04B35/468
- IPC分类号： C04B35/468 ; C04B35/49 ; H01B3/12 ; H01G4/12 ; H01G4/30
摘要：
PROBLEM TO BE SOLVED: To provide a dielectric ceramic composition exhibiting superior temperature characteristics while keeping high relative permittivity, a method for producing the same and a ceramic electronic part applied with the dielectric ceramic composition.SOLUTION: The dielectric ceramic composition includes a compound having a general formula denoted as ABO(wherein, A is Ba alone or at least one selected from among Ba, Ca and Sr; and B is Ti alone or Ti and Zr) and a perovskite type crystal structure and an oxide of Y. In the dielectric ceramic composition including dielectric particles whose main component is the compound, the value of α is 11.0 or less when α is defined as α=1000×(c/a)/d (wherein, d (nm) is the average particle diameter of a raw material powder for the compound; and c/a is the ratio of the lattice constant of the c-axis to the lattice constant of the a-axis in the perovskite type crystal structure of the raw material powder).
摘要（中）：
要解决的问题：提供一种在保持高的相对介电常数的同时显示出优异的温度特性的介电陶瓷组合物，其制造方法和涂覆有电介质陶瓷组合物的陶瓷电子部件。 电介质陶瓷组合物包括具有通式表示为ABO