摘要
以低软化点的CaO-B2O3-SiO2玻璃和BaZrO3为原料,采用两步烧结法制备了BaZrO3/CaO-B2O3-SiO2低温共烧复合材料。对比研究了两步烧结法与传统烧结法的不同,以及两步烧结法中各工艺阶段对复合材料结构与性能的影响。结果表明:两步烧结法能明显优化其微观结构,提高其介电性能;当复合材料快速升温到960℃(θ1)保温5min,再降温到920℃(θ2)保温5h两步烧结后,其εr约为15,tanδ约为1.5×10–4,可望作为低温共烧多层陶瓷电容器(MLCC)材料应用。
The BaZrO3/CaO2-B2O3-SiO2 of low temperature cofired composite material was prepared by two-step sintering method, using low softening point of CaO-B2O3-SiO2 glass and BaZrO3 as raw materials. The difference of two-step sintering method from traditional sintering method, as well as the influence of various process stages in two-step sintering on the microstructure and dielectric properties of composite material were studied. The results show that two-step sintering method can significantly optimize the microstructure of composite material and improve its dielectric properties; when the composite material is fast heated to θ1 of 960 ℃ and hold for 5 min then decreases down to θ2 of 920 ℃ and hold for 5 h, the er reaches about 15 and tanδ reaches about 1.5×10^-4. This composite material is hopeful to be applied in low temperature cofired multilayer ceramic capacitors （MLCC）.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2009年第2期1-4,共4页
Electronic Components And Materials
基金
国防基础科研基金资助项目
