以钛酸四丁酯、硝酸铋、醋酸钠和冰醋酸为原料,利用溶胶-凝胶工艺得到透明凝胶,经干燥后煅烧成(Na0.5Bi0.5)TiO3微粉.通过对溶胶体系水/醇盐的摩尔比、初始pH值及胶凝温度对(Na0.5Bi0.5)TiO3凝胶体系溶胶-凝胶形成过程影响的研究,发现水/醇盐比R在35≤R≤60,pH在2.2～3.5,反应温度在40～60℃时,能够得到透明的溶胶;通过TG-DTA、SEM、X-ray等分析手段对(Na0.5Bi0.5)TiO3粉体进行测试,表明在650℃合成1h可以得到单一钙钛矿(Na0.5Bi0.5)TiO3晶体;采用TEM对(Na0.5Bi0.5)TiO3干凝胶粉体分析其粒径大小约为10 nm.
参考文献
| [1] | Atsushi Sasaki;Tatsuya Chiba;Youichi Mamiya;Etsuo Otsuki .Dielectric and Piezoelectric Properties of (Bi_(0.5)Na_(0.5))TiO_3-(Bi_(0.5)K_(0.5))TiO_3 Systems[J].Japanese journal of applied physics,1999(9B):5564-5567. |
| [2] | 李正法,王春雷,钟维烈,赵明磊,王矜奉,陈洪存.溶胶-凝胶K0.5Bi0.5TiO3陶瓷的高温XRD研究[J].压电与声光,2004(01):69-71. |
| [3] | Takenaka T;Maruyama K;Sakata K.(Na1/2Bi1/2)TiO3-BaTiO3 system for lead free piezoelectric ceramics[J].JAPANESE JOURNAL OF APPLIED PHYSICS,1991(30):2236-2239. |
| [4] | 赵明磊,钟维烈,王春雷,王矜奉,张沛霖.钛酸铋钠系铁电体的相变研究[J].物理学报,2002(08):1856-1860. |
| [5] | Said S;Mercuiro J P .Relaxor behavior of low lead and lead free ferroelectric ceramics of the (Na1/2Bi1/2)TiO3-BaTiO3 and (Na1/2Bi1/2)TiO3-BaTiO3 systems[J].Journal of the European Ceramic Society,2001,21:1333-1335. |
| [6] | 肖定全,万征.环境协调型压电铁电陶瓷[J].压电与声光,1999(05):363-366. |
| [7] | 王天宝;高敏;王列娥 等.非铅系统压电陶瓷的研究[J].无机材料学报,1987,2(03):223-232. |
| [8] | 初宝进,李国荣,江向平,陈大任.Na1/2Bi1/2TiO3-BaTiO3系陶瓷压电性?及弛豫相变研究[J].无机材料学报,2000(05):815-821. |
| [9] | Smolenskii G A;Isupv V A;Afranovskaya A I et al.New ferroelectrics of complex compostion[J].Soviet Physics-Solid State,1961,2(11):2651-2654. |
| [10] | Buhrer C F .Some properties of bismuth perovskites[J].Journal of Chemical Physics,1962,36:798-803. |
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%