采用传统固相反应法制备了添加H3BO3助烧剂的Li2Zn3Ti4O12 (LZT)陶瓷,分别通过XRD、SEM、排水法及网络分析仪等方法研究了不同H3BO3添加量对所得陶瓷的物相、微观形貌、烧结特性与微波介电性能的影响.结果表明在LZT陶瓷中添加3wt% H3BO3可有效降低烧结温度,在900 ℃/2 h烧结条件下可以获得高致密性及优异的微波介电性:ρ=4.15 g/cm3,εr=17.916,Q×f=61200 GHz,Tf=-52.87×10-6/℃.
Li2Zn3Ti4O12 (LZT) ceramics doped with H3BO3 addition were prepared using conventional solid-state reaction method.X-ray diffraction,scanning electron microscopy,the drainage method and dielectric measurements were introduced to investigate the phase, microstructure, sintering behavior and microwave dielectric properties of the LZT specimens with different amounts of H3BO3.The results show that the Li2Zn3Ti4O12 ceramics sintered at 900 ℃ with 3wt% H3BO3 for 2 h shows high density and good microwave dielectric properties(ρ=4.15 g/cm3,εr=17.916,Q×f=61200 GHz,Tf=-52.87×10-6/℃).
参考文献
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%