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Piezoceramic material and preparation method thereof

A piezoelectric ceramic and graphene technology, applied in the field of piezoelectric ceramic materials and their preparation, can solve the problems of high brittleness and easy generation of cracks, and achieve the effects of long life, energy saving and low preparation temperature

Active Publication Date: 2015-03-11
WUJIANG JIA BILLION ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it also has its disadvantages, such as high brittleness and easy cracks, so the research and development of new functional ceramics is an important field in material science

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Weigh ZrO2 65kg, CaCO320kg, BaCO38kg, SiC2kg and BaTiO 3 1kg;

[0032] (2) Mix the above components evenly by wet ball milling, heat at 750°C for 30 minutes, add 8kg of PVA with an average molecular weight of 8000, 5kg of tetradecyl alcohol and 1kg of three-dimensional graphene, spray granulate, and press to form;

[0033] (3) Finally, sinter at 1150° C. for 2 hours in an inert atmosphere to obtain a piezoelectric ceramic material.

[0034] The performance test results of the prepared piezoelectric ceramic materials are shown in Table 1.

Embodiment 2

[0036] (1) Weigh ZrO2 73kg, CaCO323kg, BaCO315kg, SiC3kg and BaTiO 3 2kg;

[0037] (2) Mix the above components uniformly by wet ball milling, heat at 810°C for 50 minutes, add 12kg of PVA with an average molecular weight of 10,000, 8kg of tetradecyl alcohol and 1.2kg of three-dimensional graphene, spray granulate, and press to form;

[0038] (3) Finally, sinter at 1200°C for 3 hours in an inert atmosphere to obtain a piezoelectric ceramic material.

[0039] The performance test results of the prepared piezoelectric ceramic materials are shown in Table 1.

Embodiment 3

[0041] (1) Weigh ZrO2 68kg, CaCO315kg, BaCO310kg, SiC4kg and BaTiO 3 1kg;

[0042] (2) Mix the above components evenly by wet ball milling, heat at 780°C for 40 minutes, add 10kg of PVA with an average molecular weight of 9000, 6kg of tetradecyl alcohol and 1kg of three-dimensional graphene, spray granulate, and press to form;

[0043] (3) Finally, sinter at 1170°C for 2 hours in an inert atmosphere to obtain piezoelectric ceramic materials.

[0044] The performance test results of the prepared piezoelectric ceramic materials are shown in Table 1.

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Abstract

The invention discloses a piezoceramic material and a preparation method thereof. The piezoceramic material is characterized by being prepared from the following components in parts by weight: 65-73 parts of ZrO2, 15-23 parts of CaCO3, 8-15 parts of BaCO3, 8-12 parts of PVA (Polyvinyl Acetate), 5-8 parts of myristyl alcohol, 2-4 parts of SiC, 1-2 parts of BaTiO3 and 1-1.2 parts of graphene. The invention further provides the preparation method of the piezoceramic material. The method comprises the following steps: (1) weighing 65-73 parts of ZrO2, 15-23 parts of CaCO3, 8-15 parts of BaCO3, 2-4 parts of SiC, and 1-2 parts of BaTiO3; (2) adopting a wet ball-milling method to mix the components uniformly, heating the mixture at 750-810 DEG C, adding 8-12 parts of PVA, 5-8 parts of myristyl alcohol, and 1-1.2 parts of graphene to the mixture, and performing spray granulation and compression molding; (3) at last sintering the molded substance in an inert atmosphere at 1150-1200 DEG C for 2-3 hours to obtain the piezoceramic material.

Description

technical field [0001] The invention belongs to the field of ceramic materials, in particular to a piezoelectric ceramic material and a preparation method thereof. Background technique [0002] Ceramic materials are a class of inorganic non-metallic materials made of natural or synthetic compounds through shaping and high-temperature sintering. According to the use of ceramic materials, ceramic materials can be divided into ordinary ceramic materials and special ceramic materials. [0003] Ordinary ceramic materials are mainly made of feldspar, clay and quartz, which are typical silicate materials; while special ceramic materials are mainly made of high-purity artificially synthesized raw materials, which are formed and sintered by precise control technology, and generally have certain Special features to suit various needs. [0004] The main components of special ceramic materials are oxide ceramics, nitride ceramics, carbide ceramics, cermets, etc.; special ceramics have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/622
Inventor 陆全明
Owner WUJIANG JIA BILLION ELECTRONICS TECH
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