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Ceramic composition, ceramic sintered body, laminated ceramic electronic component and method for preparing same

A technology of composition and sintered body, which is applied in the direction of electrical components, circuits, resistors, etc., to achieve the effect of reducing room temperature resistance

Active Publication Date: 2021-02-26
THINKING ELECTRONIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even though PTC thermistors have the above-mentioned excellent functions, due to the limitations of manufacturing technology development, thermistors with low room temperature resistance and excellent temperature coefficient of resistance are still to be developed to meet market demand

Method used

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  • Ceramic composition, ceramic sintered body, laminated ceramic electronic component and method for preparing same
  • Ceramic composition, ceramic sintered body, laminated ceramic electronic component and method for preparing same
  • Ceramic composition, ceramic sintered body, laminated ceramic electronic component and method for preparing same

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preparation example 1

[0053] Preparation Example 1: Multilayer Ceramic Electronic Components

[0054] Each group of formulas shown in Table 1 is used as the starting raw material, and toluene and alcohol are used as the solvent. The amount of solvent added can be adjusted according to the required degree of dispersion, and the addition is about 0.5% by weight to 0.75% by weight of the total weight of the starting material. Percent polymeric dispersant (commodity model BYK-110, 111 and / or 115), and polyvinyl butyral resin binder added from about 25% by weight to 30% by weight of the total weight of the starting materials , and put it into a ball mill together with zirconium balls, and mix thoroughly with wet grinding to obtain ceramic slurry. The ceramic slurry is then formed into a sheet using a doctor blade method and then dried at a drying temperature of about 50 to 60° C.; the drying time is adjusted according to the actual situation to obtain a roll of thin tape.

[0055] Table 1: Ceramic comp...

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Abstract

The present invention provides a ceramic composition, a ceramic sintered body, a laminated ceramic electronic component and a method for preparing the same, and the obtained ceramic sintered body contains a glass phase and has an appropriate porosity by adjusting the micro-nano silica glass content of the ceramic composition so as to have good oxygenating efficiency, the laminated ceramic electronic component including the ceramic sintered body has excellent performance of a low room temperature resistance value and a high resistance temperature coefficient.

Description

technical field [0001] The present invention relates to a ceramic composition containing barium titanate, a ceramic sintered body formed by sintering it, and a laminated ceramic electronic component including the ceramic sintered body and its manufacturing method, especially for lamination of a positive temperature coefficient thermistor. Layer type ceramic electronic components. Background technique [0002] Thermistor is a variable resistor, that is, its resistance value will change with temperature, and it is divided into positive temperature coefficient thermistor, negative temperature coefficient thermistor, and critical temperature thermistor. Due to the high accuracy of thermistors in a specific temperature range, there are a wide range of applications today, such as: temperature sensors, inrush current limiters or resettable fuses. [0003] Positive temperature coefficient thermistor (Positive temperature coefficient thermistor), referred to as PTC thermistor, its r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/468H01C7/02
CPCC04B35/4682H01C7/022C04B2235/3225C04B2235/3224C04B2235/3229C04B2235/36C04B2235/96C04B2235/6567C04B2235/3236
Inventor 孙嘉聪
Owner THINKING ELECTRONIC IND CO LTD
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