OXIDE CERAMIC AND CERAMIC ELECTRONIC COMPONENT

摘要

An oxide ceramic represented by the general formula [Sr2−xBaxCo2−y(ZnuNi1−u)yFe12−zAlzO22]. In the formula, 0.7≦x≦1.3 and 0.8≦z≦1.2. y is 0≦y≦0.8 when 0.5≦u≦1.0 and is 0≦y≦1.6 when 0≦u≦0.5. y is preferably 0.4 or less. Further, a variable inductor as a ceramic electronic component has a component base body formed from the oxide ceramic.

主权项

1. An oxide ceramic comprising:
a ferrite compound containing at least Sr, Ba, Co, and Fe, wherein the Ba is contained in a form of substitution for some of the Sr, and x is 0.7 to 1.3 when a content of the Ba is expressed as x/2 in molar ratio with respect to a total of the Ba and the Sr, at least either one element M of Zn and Ni is contained in a form of substitution for some of the Co, and when a content of the element M is expressed as y/2 in molar ratio with respect to a total of the element M and the Co,
y is 0.8 or less when the element M is the Zn and when the element M is combined so that a content of the Zn is equal to or more than a content of the Ni in molar ratio, ory is 1.6 or less when the element M is the Ni and when the element M is combined so that the content of the Zn is less than the content of the Ni in molar ratio, and Al is contained in a form of substitution for some of the Fe, and z is 0.8 to 1.2 when a content of the Al is expressed as z/12 in molar ratio with respect to a total of the Al and the Fe.