Dielectric nonlinear capacitor ceramic material and its making technique

A ceramic capacitor and ceramic technology, which is applied in the field of materials and components for electrical energy storage and release, can solve the problems of low electrical breakdown strength, wide electrical hysteresis, and difficulty in reaching capacitor materials.
CN1688004AInactive Publication Date: 2005-10-26XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2005-10-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention discloses an anti-ferroelectric ceramic capacitor material and its preparation technology, which applies Sn of positive four valency to replace Zr of positive 4 valency, applies the positive 3 valency La to replace 2 valency Pb in the compound of Pb(Zr, Ti) O3 to form a multi-component solid solution with Pb vacancy. The balanced formula of the charge and the valency is: (Pb1-3 2 / 2Laz)[(Zri-ysny)1-Tix]O3, in which, x varies between 0.06`0.20, y: 0.2010.40, z varies between 0.02-0.08, or positive 2 valency Sr or Ba is added to replace 2 valency Pb in Pb(zr, Ti) O3, the formula is [(Pb1-wBw)1-3z / 2Laz][Zr1-ySny]1-xTix ]O3, B expresses Sr or Ba of 2 valency, w varies between 0.02-0.12. A conventional electronic ceramic preparation method is applied in the method.
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Description

technical field

[0001] The invention belongs to the technical field of materials and components for electric energy storage and release. In particular, it relates to the ceramic material and its manufacturing process for making dielectric nonlinear capacitors. Background technique

[0002] A capacitor is a component used to store and release electrical energy and is widely used in electronics and power instruments. Energy storage density (electrical energy stored per unit volume) is an important performance indicator of a capacitor. The higher the energy storage density of a capacitor, the greater its ability to store and release electrical energy. With the development of high efficiency and miniaturization of electronic and electric equipment, the industry has an urgent need for capacitors with high energy storage density and high output electric power. At present, the materials used to make capacitors are mainly organic and inorganic dielect...

Claims

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