Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Chip varistor ceramic powder, chip varistor preparation method and product
The invention discloses chip varistor ceramic powder, a chip varistor preparation method and a product. The preparation method of the chip varistor ceramic powder comprises that Bi2O3, Sb2O3, Ni2O3 and part of ZnO are pre-sintered, and the pyrochlore crystal phase is generated preliminarily, so that after the pre-mixed powder is added into the mixture, the pyrochlore crystal phase is used for effectively inhibiting excessive growth of crystal grains, improving the uniformity of a ZnO ceramic structure, improving the characteristics of the piezoresistor and increasing the voltage gradient of the ceramic powder at the same time. According to the invention, the ceramic powder with high voltage gradient and high performance can be provided, so that the chip varistor with small size and high performance can be produced by virtue of the ceramic powder, and the chip varistor is suitable for small electronic products in a high-voltage range.
本发明公开了一种片式压敏电阻陶瓷粉料、片式压敏电阻器制备方法及产品。所述片式压敏电阻陶瓷粉料的制备方法通过将BiO、SbO、NiO及部分ZnO进行预烧，初步生成焦绿石晶相，以在向混合物中加入预合粉料后，利用焦绿石晶相有效抑制晶粒的过度生长，改善ZnO陶瓷结构的均匀性，实现改善压敏电阻特性，同时提高陶瓷粉料的电压梯度。本发明能够提供一种高电压梯度、高性能的陶瓷粉料，使得可依靠陶瓷粉料生产出兼得小尺寸与高性能的片式压敏电阻器，以适用高压范围的小型电子产品。
Chip varistor ceramic powder, chip varistor preparation method and product
The invention discloses chip varistor ceramic powder, a chip varistor preparation method and a product. The preparation method of the chip varistor ceramic powder comprises that Bi2O3, Sb2O3, Ni2O3 and part of ZnO are pre-sintered, and the pyrochlore crystal phase is generated preliminarily, so that after the pre-mixed powder is added into the mixture, the pyrochlore crystal phase is used for effectively inhibiting excessive growth of crystal grains, improving the uniformity of a ZnO ceramic structure, improving the characteristics of the piezoresistor and increasing the voltage gradient of the ceramic powder at the same time. According to the invention, the ceramic powder with high voltage gradient and high performance can be provided, so that the chip varistor with small size and high performance can be produced by virtue of the ceramic powder, and the chip varistor is suitable for small electronic products in a high-voltage range.
本发明公开了一种片式压敏电阻陶瓷粉料、片式压敏电阻器制备方法及产品。所述片式压敏电阻陶瓷粉料的制备方法通过将BiO、SbO、NiO及部分ZnO进行预烧，初步生成焦绿石晶相，以在向混合物中加入预合粉料后，利用焦绿石晶相有效抑制晶粒的过度生长，改善ZnO陶瓷结构的均匀性，实现改善压敏电阻特性，同时提高陶瓷粉料的电压梯度。本发明能够提供一种高电压梯度、高性能的陶瓷粉料，使得可依靠陶瓷粉料生产出兼得小尺寸与高性能的片式压敏电阻器，以适用高压范围的小型电子产品。
Chip varistor ceramic powder, chip varistor preparation method and product
片式压敏电阻陶瓷粉料、片式压敏电阻器制备方法及产品
CEN QUANJIN (Autor:in) / CHEN ZHIHUA (Autor:in) / LI QIANG (Autor:in) / ZHOU QINGBO (Autor:in)
08.09.2020
Patent
Elektronische Ressource
Chinesisch
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