Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Medium-medium high-Q-value temperature-stable microwave dielectric ceramic powder and preparation method thereof
The invention discloses a medium high Q value temperature stable type microwave dielectric ceramic powder and a preparation scheme thereof, and the medium high Q value temperature stable type microwave dielectric ceramic powder comprises the following components in percentage by mass: MgO, ZnO, TiO2, CaCO3, BaCO3, Nb2O5, MnCO3, SiO2, ZrO2, H3B03 and SrCO3. The preparation method comprises the following steps: 1) weighing materials; (2) putting the weighed materials into high-purity water according to the mass ratio of the powder to the water being 1: (1-1.2), then adding a dispersing agent, and uniformly dispersing by using a sand mill to form slurry; 3) dehydrating the sanded slurry by using centrifugal spray drying; 4) calcining the dried powder by using a muffle furnace or a pushed slab kiln; and (5) pulverizing and crushing the calcined powder by using a universal pulverizing machine to obtain the ceramic powder disclosed by the invention. The technological process is short, the production efficiency is high, and the prepared ceramic powder is high in repeatability, stable in electrical property and low in temperature change coefficient.
本发明公开了一种中介高Q值温度稳定型微波介电陶瓷粉体及其制备方案，该中介高Q值温度稳定型微波介电陶瓷粉体按照质量百分数计，包括组分：MgO，ZnO，TiO2，CaCO3，BaCO3，Nb2O5，MnC03，SiO2，ZrO2，H3B03，SrCO3。制备方法包括步骤：1)称取物料；2)将称取好的物料投入高纯水中，粉体：水的质量比为1：1～1.2，然后加入分散剂，用砂磨机分散均匀形成浆料；3)使用离心喷雾干燥将砂磨好的浆料进行脱去水分；4)将干燥后的粉体使用马弗炉或者推板窑进行煅烧；5)煅烧后的粉体使用万能打粉机进行打粉破碎，打粉后即可得到本发明的陶瓷粉体。本发明的工艺流程短、生产效率高，所制备出的陶瓷粉体，重复性高、电性能稳定、温度变化系数低。
Medium-medium high-Q-value temperature-stable microwave dielectric ceramic powder and preparation method thereof
The invention discloses a medium high Q value temperature stable type microwave dielectric ceramic powder and a preparation scheme thereof, and the medium high Q value temperature stable type microwave dielectric ceramic powder comprises the following components in percentage by mass: MgO, ZnO, TiO2, CaCO3, BaCO3, Nb2O5, MnCO3, SiO2, ZrO2, H3B03 and SrCO3. The preparation method comprises the following steps: 1) weighing materials; (2) putting the weighed materials into high-purity water according to the mass ratio of the powder to the water being 1: (1-1.2), then adding a dispersing agent, and uniformly dispersing by using a sand mill to form slurry; 3) dehydrating the sanded slurry by using centrifugal spray drying; 4) calcining the dried powder by using a muffle furnace or a pushed slab kiln; and (5) pulverizing and crushing the calcined powder by using a universal pulverizing machine to obtain the ceramic powder disclosed by the invention. The technological process is short, the production efficiency is high, and the prepared ceramic powder is high in repeatability, stable in electrical property and low in temperature change coefficient.
本发明公开了一种中介高Q值温度稳定型微波介电陶瓷粉体及其制备方案，该中介高Q值温度稳定型微波介电陶瓷粉体按照质量百分数计，包括组分：MgO，ZnO，TiO2，CaCO3，BaCO3，Nb2O5，MnC03，SiO2，ZrO2，H3B03，SrCO3。制备方法包括步骤：1)称取物料；2)将称取好的物料投入高纯水中，粉体：水的质量比为1：1～1.2，然后加入分散剂，用砂磨机分散均匀形成浆料；3)使用离心喷雾干燥将砂磨好的浆料进行脱去水分；4)将干燥后的粉体使用马弗炉或者推板窑进行煅烧；5)煅烧后的粉体使用万能打粉机进行打粉破碎，打粉后即可得到本发明的陶瓷粉体。本发明的工艺流程短、生产效率高，所制备出的陶瓷粉体，重复性高、电性能稳定、温度变化系数低。
Medium-medium high-Q-value temperature-stable microwave dielectric ceramic powder and preparation method thereof
一种中介高Q值温度稳定型微波介电陶瓷粉体及其制备方法
ZI MEIYONG (Autor:in)
25.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Medium microwave dielectric ceramic powder and preparation method thereof
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2021
Temperature-stable medium-dielectric-constant microwave dielectric ceramic BaLi2LaVO6
| Europäisches Patentamt | 2016