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Ceramic dielectric material as well as preparation method and application thereof

A ceramic dielectric, ceramic capacitor technology, applied in the direction of fixed capacitor dielectric, fixed capacitor components, fixed capacitors, etc., can solve the problems of MLCC products such as electrical performance decline, poor bending resistance, cracking failure, etc., to achieve excellent durability, The effect of improving bending resistance and improving strength

Active Publication Date: 2022-03-04
广东省先进陶瓷材料科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] MLCC is an integral component that is alternately laminated with ceramic materials and metal materials, and then pressed and co-fired. The ceramic materials mainly include ABO 3 Ceramic materials (mainly BaTiO 3 ), which is characterized by poor toughness, high brittleness, and poor bending resistance
In the process of using MLCC products, a problem often occurs: in the process of welding MLCC products on the circuit board, MLCC is susceptible to bending mechanical stress, cracking and failure.
[0004] ZrO 2 Ceramic materials have the characteristics of high strength, high toughness, and high bending strength. If they are mixed into MLCC ceramic materials, it is expected to improve the above cracking problems. However, if ZrO 2 Ceramics are added to ceramic materials as anti-bending reinforcement components, and the electrical performance of MLCC products will decrease.

Method used

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  • Ceramic dielectric material as well as preparation method and application thereof
  • Ceramic dielectric material as well as preparation method and application thereof
  • Ceramic dielectric material as well as preparation method and application thereof

Examples

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Embodiment Construction

[0043] The technical solutions of the present invention will be further described below in conjunction with specific examples. The raw materials used in the following examples, unless otherwise specified, can be obtained from conventional commercial channels; the processes used, unless otherwise specified, are conventional processes in the art.

[0044] A ceramic dielectric material whose main component is BaTiO 3 , according to BaTiO 3 The molar percentage of is 100% meter, also contains other raw materials of proportioning as described in table 1 below:

[0045] Table 1. Raw materials and mole percentages of ceramic dielectric materials

[0046]

[0047]

[0048] In addition, the raw materials of the ceramic dielectric materials of each embodiment and comparative example also include BaTiO 3 0.5% by mass of dispersant polyester amide salt, accounting for BaTiO 3 7.0% by mass of binder PVB, accounting for BaTiO 3 3% plasticizer polyethylene glycol by mass and accou...

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Abstract

The invention discloses a ceramic dielectric material as well as a preparation method and application thereof. The raw materials of the ceramic dielectric material comprise BaTiO3 and Zr-containing perovskite minerals. The Zr-containing calcium-titanium mineral substance is added into the ceramic dielectric material, has high toughness and high bending strength, has good lattice matching property with BaTiO3, and can be better in solid solution with BaTiO3, so that the strength and bending resistance of the MLCC can be improved, the electrical properties of the MLCC are not affected, and the MLCC can have excellent durability.

Description

technical field [0001] The invention relates to the technical field of electronic ceramic components, in particular to a ceramic dielectric material and its preparation method and application. Background technique [0002] In recent years, electronic products such as notebook computers, satellite communications, smart phones and wearable devices have developed rapidly, and MLCC (multilayer chip ceramic capacitors), as a basic circuit electronic component, has also achieved rapid development, and the market demand is increasing. [0003] MLCC is an integral component that is alternately laminated with ceramic materials and metal materials, and then pressed and co-fired. The ceramic materials mainly include ABO 3 Ceramic materials (mainly BaTiO 3 ), which is characterized by poor toughness, high brittleness, and poor bending resistance. In the process of using MLCC products, a problem often arises: in the process of soldering MLCC products on the circuit board, MLCC is susce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/468C04B35/622C04B35/63C04B41/88C04B41/90H01G4/12H01G4/30
CPCC04B35/468C04B35/622C04B35/6303C04B41/009C04B41/5194C04B41/88C04B41/52C04B41/90H01G4/30H01G4/1227C04B2235/3206C04B2235/3262C04B2235/3241C04B2235/3225C04B2235/3248C04B2235/6025C04B2235/612C04B2235/656C04B2235/6567C04B2235/6582C04B2235/96C04B41/4535C04B41/0072C04B41/5127C04B41/5144C04B41/515C04B41/4564
Inventor 邱基华陈烁烁
Owner 广东省先进陶瓷材料科技有限公司
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