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采用传统固相烧结工艺, 结合特殊的气氛控制技术,制备了铌酸钾钠(KNN)基无铅透明陶瓷 xBa(Sc0.5Nb0.5)O3-(1-x) (K0.5N0.5)NbO3 (简写xBSN-(1-x)KNN). 并对其微观结构、介电、铁电性能和光学透光率进行了研究. 结果表明该体系陶瓷具有准立方钙钛矿结构, 没有其他杂相, 晶粒大小与可见光波长相当, 高度致密, 无明显的晶界存在. 在 x=0.05时, d33最高可达到110 pC/N, 2Pr达到25.4 C/cm2. 同时该材料具有良好的透明性, 在可见光范围内,透过率达到54%左右, 近红外2500 nm处,透过率接近83%, 是一种有望取代铅基透明陶瓷的环境友好型无铅透明陶瓷.Using conventional solid-phase sintering technique combined with a special atmosphere controlling technique, KNN-based lead-free transparent ceramics, xBa(Sc0.5Nb0.5)O3-(1-x) (K0.5N0.5)NbO3 (xBSN-(1-x) KNN), are prepared and investigated. Their microstructure, dielectric performance, ferroelectric performance and optical transparency are investigated. The results show that such ceramics are each with a pseudocubic-Perovskite structure, without any other impure phase. Their grain size is comparable to the light wavelength and the grains are highly condensed without evident crystal borders. For x=0.05, the d33 reaches up to 110 pC/N maximally and the 2Pr =25.4 C/cm2. Moreover, such ceramics are each with an excellent transparency. Their optical transparency reaches about 54%, In the near-infrared wavelength 2500 nm, their optical transparency is near 83%. Such ceramics are a type of environment-friendly lead-free transparent ceramics which may be promising in replacing lead-based transparent ceramics.
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Keywords:
- KNN /
- lead-free transparent ceramics /
- transmission /
- crystal borders
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[1] Ji Y M, Jiang D Y, Feng T 2004 J. Inorg. Mate. 19 275 (in Chinese) [吉亚明, 蒋丹宇, 冯涛 2004无机材料学报 19 275]
[2] Huang Y H,Jiang D L,Zhang J X, Lin Q L 2010 Acta Phys. Sin. 59 300 (in Chinese) [黄毅华,江东亮,张景贤, 林庆玲 2010 59 300]
[3] Zhang B, Zhang H J, Yang Q H, Lu S Z 2010 Acta Phys. Sin. 59 1335 (in Chinese) [张斌,张浩佳, 杨秋红, 陆神洲2010 59 1335]
[4] Shi J L, Feng T 2008 Inorganic Optical Transparent ceramics (1st Ed.) (Shanghai Popular Science Press) p12 (in Chinese) [施剑林,冯涛 2008 无机光学透明陶瓷, 第一版,上海科学普及出版社, 第12页]
[5] Haertling G H 1999 Am. Ceram. Soc. Bull. 82 7972818
[6] Li W D, Cao Y, Fang M H, Huang Z H 2007 J. Synth. Cryst. 36 102 (in Chinese) [李卫东,曹瑛,房明浩,黄朝晖 2007 人工晶体学报 36 102]
[7] Jaffe B, Cook W R, Jaffe H 1971 Piezoelectric Ceramics (London: Academic Press)
[8] Saito Y, Takao H 2004 Nature 432 84
[9] Cross E 2004 Nature 432 (7013) 24225
[10] Xiao D Q,WU W J, Liang W F, Zhu J G 2010 Mater. Rew. 24 01 (in Chinese) [肖定全,吴文娟,梁文峰,朱建国 2010材料导报 24 01]
[11] Ming B Q,Wang J F, Zang G Z, Wang C M, Gai Z G, Du J, Zheng L M 2008 Acta Phys. Sin. 9 57 (in Chinese) [明保全,王矜奉,臧国忠,王春明,盖志刚,杜鹃,郑立梅 2008 9 57]
[12] Ying J X, Zhang B, Cui X, Xu X Zh 2011 High Power Laser and Particle Beams 38 581 (in Chinese) [应建新,张彬,崔鑫,徐学珍 2011强激光与粒子束 38 581]
[13] Maeder M D, Damjanovic D, Setter N 2004 J. Electron.Ceram. 13 385
[14] Park S H, Ahn C W, Nahm S 2004 Jpn. J. Appl. Phys. 43 8B L10722
[15] Mat subara M, Yamaguchi T, Kikuta K 2005 Jpn. J. Appl. Phys. 43 715927163
[16] Zheng L M, Wang J F, Zang G Z, Zhao M L, Qi P, Du J, Su W B, Ming B Q 2006 Sci. China 51 195521957 (in Chinese) [郑立梅, 王矜奉, 臧国忠, 赵明磊,亓鹏,杜鹃,苏文斌,明保全2006 科学通报 51 195521957]
[17] Lin D M , Xiao D Q, Zhu J G , Yu P, Yan H J 2010 Funct. Mater. 34 615 (in Chinese) [赁敦敏,肖定全,朱建国,余萍,鄢洪建 2003 功能材料 34 615]
[18] Hollenstein E, Davis M , Damjanovic D 2005 Appl. Phys. Lett. 87 1829052123
[19] Takenaka T, Maruyama K, Sakata K 1991 Jpn. J. Appl. Phys 30 3622239
[20] Hou H H, Sun X L, Tian G L, Wu S G, Ma X F, Shao J D, Fan Z X 2009 Acta Phys. Sin. 58 6425 (in Chinese) [侯海虹,孙喜莲,田光磊,吴师岗,马小凤,邵建达,范正修 2009 58 6425]
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