铌酸钠钾(KNN)基无铅压电陶瓷性能的提高可通过掺杂、取代和添加烧结助剂等方法来实现,还可通过适当改变陶瓷制备工艺来达到.为了探索可实用化的KNN陶瓷制备工艺,以纯KNN陶瓷的制备为例,考察了3种不同粉体制备工艺(包括传统固相反应法、原料中添加活性炭的固相反应法、以及粉体经分批预烧处理后再混合的固相反应法)对KNN元铅压电陶瓷的晶相、微观结构和电学性能的影响.实验结果表明:采用原料中添加活性炭的固相反应法制得的纯KNN陶瓷,其表面晶粒尺寸相对均一,晶界清晰,样品致密性好;所得的陶瓷样具有较好的介电、压电性能,其中d33=116pC/N,κP=0.37,e=630,tanδ=0.034,Pr=22.40μC/cm2,Ec=0.675kV/mm,Tc=405℃.
参考文献
[1] | 肖定全.关于无铅压电陶瓷及其应用的几个问题[J].电子元件与材料,2004(11):62-65. |
[2] | Guo Yiping;Ken-ichi K;Hitoshi O .[J].Applied Physics Letters,2004,85:4121-4123. |
[3] | Matsubara M;Kikuta K;Hirano S .[J].Journal of Applied Physics,2005,97:114105. |
[4] | Seungho P;Cheolwoo A;Sahn N et al.[J].Japanese Journal of Applied Physics,2004,43:8B,L1072-L1074. |
[5] | Zhao Pei;Zhang Boping;Li Jingfeng .[J].Applied Physics Letters,2007,90:242909. |
[6] | Zuo Ruzhong;Ye Chun .[J].Applied Physics Letters,2007,91:062916. |
[7] | Wu Jiagang;Xiao Dingquan;Wang Yuanyu .[J].Applied Physics Letters,2007,91:252907. |
[8] | Zhang Shujun;Xia Ru;Hap Hua et al.[J].Applied Physics Letters,2008,91:1152904. |
[9] | Lee T;Kwok K W;Chan H L W .[J].Journal of Physics D:Applied Physics,2008,41:155402. |
[10] | Yilmaz H;Messing G L;Trolier-Mckinstry S .[J].Journal of Electroceramics,2003,11:217-226. |
[11] | Yasuyoshi S;Hisaaki T;Toshihiko T et al.[J].NATURE,2004,432:84-87. |
[12] | David B J;Rik B;Richard D E .[J].Advanced Materials,2005,17:2474-2477. |
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%