采用熔盐法合成单一Bi4Ti3O12(BTO),研究了温度及升温速率对熔盐法合成钛酸铋形貌的影响,结果表明,合成的BTO为板状结构,颗粒尺寸为0.2～8μm;BTO晶体的{010}晶面族晶面沿b轴有明显的择优取向.当温度为850～950℃时,升温速率对{010}晶面族晶面择优取向程度的影响大于温度对其的影响.相同升温速率下,温度对{010}晶面族晶面相对衍射强度值最高为1.153倍;而相同温度下,升温速率对{010}晶面族晶面相对衍射强度值最高为12.404倍.通过研究工艺参数(温度、升温速率等)对{010}晶面族晶面择优取向程度的影响,可以实现BTO晶体形貌的可控.
参考文献
| [1] | Hiroshi Irie;Masaru Miyayama;Tetsuichi Kudo .Structure dependence of ferroelectric properties of bismuth layer-structured ferroelectric single crystals[J].Journal of Applied Physics,2001(8):4089-4094. |
| [2] | Jovalekic C;Stevic S .A study of ferroelectric properties of Bi4Ti3O12 ceramics prepared from chemically derived powders[J].Ferroelectrics,1992,132:185. |
| [3] | Takenaka T;Sakata K .Grain orientation effects on electrical properties of bismuth layer-structured ferroelectric Pb(1-x)(NaCe)(x/2)Bi4Ti4O15 solid solution[J].Journal of Applied Physics,1984,55:1092. |
| [4] | Ikegami S;Ueda L .Piezoelectricity in ceramics of ferroelectilc bismuth compound with layer structurel[J].Japanese Journal of Applied Physics,1974,13:1572. |
| [5] | Dorrian J F;Newnham R E;Smith D K et al.Crystal structure of Bi4Ti3012[J].Ferroelectrics,1971,3:17. |
| [6] | Du Y L;Fang J L;Zhang M S et al.Phase character and structural anomaly of Bi4Ti3O12 nanoparticles prepared by chemical coprecipitation[J].Materials Letters,2002,57:802. |
| [7] | shi Y H;Cao C S;Feng S H .Hydrothermal synthesis and characterization of Bi4Ti3O12[J].Materials Letters,2000,46:270. |
| [8] | 刘鹏,姚熹.La调节Pb（Zr,Sn,Ti）O3反铁电陶瓷的相变与电学性质[J].物理学报,2002(07):1621-1627. |
| [9] | 陈实,刘梅冬.薄膜型热释电红外探测器的发展[J].压电与声光,1999(05):370-375. |
| [10] | 刘益民.铁电薄膜的制备、表征和应用[J].物理,1992(11):671. |
| [11] | 肖定全 .当前铁电学和铁电材料研究的几个问题[J].压电与声光,1996,18:45. |
| [12] | 徐国成,潘玲,关庆丰,邹广田.非晶钛酸铋的晶化过程[J].物理学报,2006(06):3080-3085. |
| [13] | Yao W F;Wang H;Xu X H et al.Synthesis and photocatalytic property of bismuth titanate Bi4Ti3O12[J].Materials Letters,2003,57:1899. |
| [14] | 高峰,张昌松,张慧君,田长生.过量Bi2O3对熔盐法制备钛酸铋的影响[J].机械工程材料,2006(05):23-25,29. |
| [15] | 阚艳梅,王佩玲,李永祥,程一兵.工艺参数对熔盐法制备钛酸铋粉体影响的研究[J].无机材料学报,2002(05):1063-1067. |
| [16] | 夏傲,苗鸿雁,李永强.水热合成钛酸铋纳米粉体的研究[J].电子元件与材料,2005(11):16-18,21. |
| [17] | 陈永翀,徐兴军,崔宏芝,代克化,宋兆爽,江卫军,其鲁.晶体的择优取向与LiCoO2正极材料X射线衍射峰的强度比[J].物理化学学报,2007(12):1948-1953. |
| [18] | 田清泉;王秀峰;于成龙 et al.高有序生长硅酸铋(Bi4Si3O12)晶体畴结构及缺陷分析[J].中国科学E辑,2009,52:2295. |
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