Low-temperature sintered BNT microwave dielectric material and preparation method thereof

The invention belongs to the technical field of electronic ceramic materials, and provides a low-temperature sintered BNT microwave dielectric material and a preparation method thereof. The BNT microwave dielectric material is prepared from the following raw materials: a main crystalline phase, a modifying additive and a sintering aid. According to the BNT microwave dielectric material, the sintering temperature of the BNT microwave dielectric material can be greatly reduced while the electrical property of the BNT microwave dielectric material during high-temperature sintering is maintained,so that the energy consumption is greatly reduced, co-sintering with low-palladium silver paste and even pure silver paste can be realized, and the production cost is saved. The preparation method issimple in preparation process, low in energy consumption in the whole process, relatively low in cost, easy to realize industrial production and capable of rapidly and stably realizing batch production conversion from a materi