Scheelite Microwave Dielectric Ceramic Material and Preparation Method Thereof

A method for preparing a scheelite microwave dielectric ceramic material, the method comprising:

• mixing the materials that include V2O5, In2O3, MoO3, and Bi2O3 according to a stoichiometry ratio consistent with a general formula Bi(V1-xInx/3Mo2x/3)MoO4, where 0.06≦x≦0.12;
• ball-milling the materials for 3 to 6 hours;
• drying the ball-milled materials at 100° C-200° C.;
• sieving the dried ball-milled materials;
• compressing the sieved materials into blocks;
• pre-sintering the blocks at 650° C-750° C.;
• insulating the blocks for 4 to 6 hours to obtain sample clinkers;
• grinding the sample clinkers;
• ball-milling the sample clinkers for 5 to 6 hours;
• drying the ball-milled sample clinkers at 100° C-200° C.;
• granulating and sieving the dried ball-milled sample clinkers to obtain a ceramic powder;
• compressing and molding the ceramic powder;
• and
• sintering the powder for 2 to 3 hours at 780° C-840° C. to obtain a scheelite microwave dielectric ceramic material that has a structure expression Bi(V1-xInx/3Mo2x/3)MoO4, where 0.06≦x≦0.12.