| abstract |
The invention provides a preparation method of a microwave dielectric sintered powder material, microwave dielectric ceramic and application thereof, wherein the method comprises the following steps: preparation of Main powder xMgO- (1-x) TiO 2 X is the mole fraction ratio of MgO, and x is more than or equal to 0.475 and less than or equal to 0.495; mixing main powder xMgO- (1-x) TiO 2 And modifier CaCO 3 、ZnO、ZrO 2 、Mn 3 O 4 、SiO 2 Mixing to obtain a mixture; adding water, ball-milling, crushing and drying to obtain a microwave medium sintered powder material; modifier CaCO 3 、ZnO、ZrO 2 、Mn 3 O 4 、SiO 2 Occupying the main powder xMgO- (1-x) TiO 2 The mass percentages of the components are respectively 1.7-5.89%, 0.05-2%, 0.05-1% and 0.05-1%. The preparation process is simple, no pollution is caused, and the obtained microwave dielectric ceramic is compact and meets the application requirements of microwave devices. |