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Pressure-sensitive ceramic membrane and preparation method thereof

A technology of pressure-sensitive ceramics and thin films, which is applied in the field of ceramic processing, can solve the problems of high equipment requirements, high one-time investment, and difficulty in reducing product costs, and achieve low cost, low leakage current density, and suppression of instantaneous high voltage.

Inactive Publication Date: 2014-12-24
DOSHAN NEW STRATEGY INTPROP CULTURECO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] CN201110107605.7 discloses a zinc oxide-based low-voltage pressure-sensitive ceramic thin film material and its preparation method. The patent uses the ingredients to be ball-milled and then dried, granulated and then pressed into a green body, which is then sintered into a sputtering target; and then prepared by magnetron sputtering. Zinc-based low-voltage pressure-sensitive ceramic thin film material, although the performance of the obtained ceramic thin film is better, but it has higher requirements for equipment, which leads to problems such as high one-time investment and difficulty in reducing product cost in the industrial application of this patent; the present invention From the perspective of cost saving, ZnO, Bi 2 o 3 etc. as raw materials to develop a ceramic thin film with simple process, low cost and excellent performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A pressure-sensitive ceramic film is composed of the following components in parts by weight:

[0024] 60 parts of ZnO, Bi 2 o 3 5 parts, Sb 2 o 3 3 parts, MnO 2 1.5 parts, Pr 6 o 11 10 servings.

[0025] Its preparation method comprises the following steps:

[0026] Pour the above-mentioned substances into a stirring ball mill in proportion, and add pure water whose weight is 80% of the total weight of the additive, ball mill until the particle size reaches 1.0 μm, then heat the resulting mixed solution to 100°C, keep warm and stir Evaporate the solvent to a viscous paste, spray the paste on the alloy substrate material by spray drying technology, calcinate at 300°C for 10 hours, and obtain a pressure-sensitive ceramic thin film product after demoulding.

Embodiment 2

[0028] A pressure-sensitive ceramic film is composed of the following components in parts by weight:

[0029] 85 parts of ZnO, Bi 2 o 3 10 parts, Sb 2 o 3 5 parts, MnO 2 0.2 part, Pr 6 o 11 7 servings.

[0030] Its preparation method comprises the following steps:

[0031] Pour the above-mentioned substances into a stirring ball mill in proportion, and add pure water whose weight is 80% of the total weight of the additive, ball mill until the particle size reaches 0.5 μm, then heat the resulting mixed solution to 100°C, keep warm and stir Evaporate the solvent to a viscous paste, spray the paste on the alloy substrate material by spray drying technology, calcinate at 300°C for 10 hours, and obtain a pressure-sensitive ceramic thin film product after demoulding.

Embodiment 3

[0033] A pressure-sensitive ceramic film is composed of the following components in parts by weight:

[0034] 70 parts of ZnO, Bi 2 o 3 10 parts, Sb 2 o 3 3 parts, MnO 2 0 0.8 parts, Pr 6 o 11 7 servings.

[0035] Its preparation method comprises the following steps:

[0036] Pour the above-mentioned substances into a stirring ball mill in proportion, and add pure water whose weight is 80% of the total weight of the additive, ball mill until the particle size reaches 0.5 μm, then heat the resulting mixed solution to 85°C, keep warm and stir Evaporate the solvent to a viscous paste, spray the paste on the alloy substrate material by spray drying technology, calcinate at 300°C for 10 hours, and obtain a pressure-sensitive ceramic thin film product after demoulding.

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Abstract

The invention relates to a pressure-sensitive ceramic membrane and a preparation method of the pressure-sensitive ceramic membrane and belongs to the technical field of ceramic processing. The pressure-sensitive ceramic membrane comprises the following components in parts by weight: 60-90 parts of ZnO, 1-10 parts of Bi2O3, 0-5 parts of Sb2O3, 0.2-1.5 parts of MnO2, and 5-10 parts of Pr6O11. The preparation method comprises the following steps: pouring the substances into a stirring ball mill according to the above ratio; adding pure water which is 75-80% of total weight of the additive; carrying out ball-milling until the particle size is 0.5-1.5 microns, and then heating the obtained mixed solution to 85-100 DEG C; carrying out heat preservation and stirring continuously, so that the solvent is evaporated into a sticky paste; spraying the sticky paste on an alloy substrate material by adopting a spray drying technology; and calcining at 200-300 DEG C for 6-10 hours, and demolding so as to obtain a pressure-sensitive ceramic membrane product. The ceramic membrane has good pressure-sensitive characteristic, is simple in preparation process, and is suitable for mass industrial production.

Description

Technical field [0001] The present invention involves a ceramic film and its preparation method, which specifically involves a kind of pressure -sensitive ceramic material and its preparation method, which belongs to the field of ceramic processing technology. Background technique [0002] Voltage-sensitive ceramic materials refer to a semiconductor ceramic material that has a non-linear Ohm (V-I) characteristics and its resistance value with the increase in voltage within a specific voltage range.According to this non-linear V-I characteristics, this semiconductor ceramic material can be used to make non-linear resistance elements, that is, pressure-sensitive resistors.The application of pressure -sensitive resistors is widely used and can be used to inhibit voltage waves and overvoltage protection.Because voltage resistors play an important role in protecting the safety of power equipment and ensuring the normal stability of electronic instruments, and because of their low cost...

Claims

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Application Information

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IPC IPC(8): C04B35/453C04B35/622
Inventor 李志坚
Owner DOSHAN NEW STRATEGY INTPROP CULTURECO
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