| B位离子共沉-煅烧法制备Ba(Mg1/3Ta2/3)O3微波陶瓷材料 |
| |
| 引用本文： | 杨传仁,秦广宇,周大雨,游文南,苟富均.B位离子共沉-煅烧法制备Ba(Mg1/3Ta2/3)O3微波陶瓷材料[J].硅酸盐学报,1999,27(4):437-444. |
| |
| 作者姓名： | 杨传仁 秦广宇 周大雨 游文南 苟富均 |
| |
| 作者单位： | 电子科技大学信息材料工程学院 |
| |
| 摘 要： | 采用钽镁共沉淀法制备ＭｇＴａ２Ｏ６粉体，然后与ＢａＣＯ粉体混合制备Ｂａ（Ｍｇ１／３Ｔａ２／３）Ｏ３（简称ＢＭＴ）微波陶瓷材料，成功地解决了ＴａＣｌ３溶解问题。对钽镁共沉条件和粉体热分解工艺与粉体的平均粒径和钽镁比例关系；ＢＭＴ陶瓷制备工艺与材料的微观结构和微波性能关系进行了研究，制备的ＭｇＴａ２Ｏ６晶相粉体平均粒径为０．３μｍ，最大与最小粒径比为５。制备的ＢＭＴ陶瓷的几乎不含ＢａＴａ２Ｏ６等杂相，
|
| 关 键 词： | 钽镁酸钡微波陶瓷 共沉法 湿-干结合技术 钽酸镁粉体 钽酸钡杂相 |
PREPARATION OF Ba(Mg1/3Ta2/3)O3 MICROWAVE CERAMICS BY WET-DRY COMBINATION TECHNIQUE |
| |
| Yang Chuanren,Qin Guangyu,Zhou Dayu,You Wennan,Gou Fujun.PREPARATION OF Ba(Mg1/3Ta2/3)O3 MICROWAVE CERAMICS BY WET-DRY COMBINATION TECHNIQUE[J].Journal of The Chinese Ceramic Society,1999,27(4):437-444. |
| |
| Authors: | Yang Chuanren Qin Guangyu Zhou Dayu You Wennan Gou Fujun |
| |
| Abstract: | MgTa2O6 powder was prepared by chemical coprecipitation method, and then mixed with high purity fine BaCO3 powder to prepare Ba(Mg1/3Ta2/3)O3 (BMT) ceramics by ordinary dry method. The problem of TaCl5 dissolving has been solved. The influence of coprecipitation and thermal decomposition conditions on the particle size and Ta/Mg molar ratio of MgTa2O6 powder was studied. The relation of microstructure and microwave properties of BMT ceramics with Ta/Mg molar ratio and sintering conditions was also investigated. The crystalline MgTa2O6 fine powder with particle size of 0.3 m (dmax/dmin=5) was obtained by chemical coprecipitation method. BMT ceramics without BaTa2O6 extra phase, which has a unloaded Q value of 5400 (at 10 GHz), was obtained by the wet-dry combination technique when the BaMgTa is 312 (molar ratio) |
| |
| Keywords: | barium magnesium tantalate microwave ceramics coprecipitation method wet-dry combination technique magnesium tantalate powder barium tantalate extra phase |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
