BaTiO₃-epoxy dielectric composites were prepared by curing the liquid epoxy monomer that infiltrated into the partially-sintered BaTiO₃ porous ceramics. The BaTiO₃ volume fraction of the composites maintained around 58.6% with increasing the sintering temperature from 600 °C to 1000 °C, while the significant microstructure evolution, improved connectivity of BaTiO₃ phase and dramatical increase in permittivity from 102 to 697 were observed. The permittivity and BaTiO₃ volume fraction further increased to 2328 and 83.5% for the sintering temperature of 1250 °C. The present composites had the permittivity 1–2 orders of magnitude higher than the 0–3 type ones, and the extraordinary results were mainly attributed to the improved connectivity of BaTiO₃ phase that benefited from partial sintering. The connectivity also had a significant effect on the temperature dependence of permittivity, and good combination of temperature-stable high permittivity, low dielectric loss and relatively low ceramic fraction could be obtained by regulating the connectivity of BaTiO₃ ceramic phase.

通过固化渗透到部分烧结的BaTiO ₃多孔陶瓷中的液态环氧单体，制备了BaTiO _3-环氧介电复合材料。随着烧结温度从600°C增加到1000°C，复合材料的BaTiO ₃体积分数保持在58.6％左右，同时观察到显着的微观结构演变，BaTiO ₃相的改善的连通性和介电常数从102到697的急剧增加。介电常数和BaTiO ₃对于1250℃的烧结温度，体积分数进一步增加至2328和83.5％。目前的复合材料的介电常数比0-3型的介电常数高1-2个数量级，非凡的结果主要归因于部分烧结使BaTiO ₃相的连通性得到了改善。连通性对介电常数的温度依赖性也具有显着影响，并且通过调节BaTiO ₃陶瓷相的连通性，可以获得温度稳定的高介电常数，低介电损耗和相对较低的陶瓷分数的良好组合。