研究了添加5%B2O3-CuO基础上再添加不同含量的Li2CO3 复合烧结助剂对(Ca0.9375Sr0.0625)0.3(Li0.5Sm0.5)0.7TiO3 (CSLST)陶瓷的烧结行为及微波介电性能的影响.研究结果表明:添加复合烧结助剂的陶瓷烧结后其晶相仍呈斜方钙钛矿结构.在不劣化微波介电性能的条件下,陶瓷的烧结温度可降至950 ℃,随Li2CO3含量的增加,添加复合烧结助剂的CSLST陶瓷的体积密度和介电常数εr 逐渐降低.当Li2CO3添加量为0.5 %时,在950 ℃保温5 h,所制得的陶瓷具有优良的微波介电性能:εr=84.7,Qf=1929 GHz,τf=28.76×10-6 /℃.
参考文献
| [1] | 姚尧;赵梅瑜;王依琳 等.BiNbO4微波介质陶瓷的研究[J].无机材料学报,1998,13(02):176-180. |
| [2] | Chio W;Kim K Y;Moon M R et al.Effects of Nd2O3 on the Microwave Dielectric Properties Use[J].Journal of Materials Research,1992,13(10):2945-2949. |
| [3] | Kagata H;Inoue T;Kato J et al.Low-fire Bismuth-based Dielectric Ceramics for Microwave Use[J].Japanese Journal of Applied Physics,1992,31(9B):3152-3155. |
| [4] | W.C.Tzou;C.F.Yang .Improvements in the sintering and microwave properties of BiNbO_4 microwave ceramics by V_2O_5 addition[J].Journal of the European Ceramic Society,2000(7):991-996. |
| [5] | Kim D W;Kim I T;Park B G et al.Microwave Dielectric Properties of (1-x)Cu3Nb2O8-xZn3Nb2O8 Ceramics[J].Journal of Materials Research,2001,16(05):1465-1470. |
| [6] | 王睿;王悦辉;周济 等.低温共烧陶瓷技术及其应用[J].硅酸盐学报,2007,35(08):125-130. |
| [7] | 王家邦,杨辉,张启龙,刘兴元,邹佳丽.叠层共烧微波介质陶瓷器件的银扩散机理[J].硅酸盐学报,2004(12):1549-1554. |
| [8] | 杨辉,张启龙,王家邦,尤源,黄伟.微波介质陶瓷及器件研究进展[J].硅酸盐学报,2003(10):965-973,980. |
| [9] | 张华,李月明,江良,李润润,刘虎.Sr2+置换改性Ca0.25（Li1/2Sm1/2）0.75TiO3陶瓷的微波介电性能研究[J].人工晶体学报,2010(03):696-701. |
| [10] | Tong JX;Zhang QL;Yang H;Zou JL .Low-temperature firing and microwave dielectric properties of Ca[(Li1/3Nb2/3)(0.84)Ti-0.16]O3-delta ceramics for LTCC applications[J].Journal of the American Ceramic Society,2007(3):845-849. |
| [11] | 丑修建,翟继卫,孙建英,姚熹.B2O3-Li2O掺杂低温烧结Ba0.6Sr0.4TiO3陶瓷的介电性能[J].硅酸盐学报,2007(02):149-153. |
| [12] | Kajfea D .Temperature Characterization of the Dielectric-resonator Materials[J].Journal European Ceramic Society,2001,21(15):2663-2667. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%