丝网印刷技术制备高性能织构化K0.45Na0.55NbO3陶瓷

doi:10.3724/SP.J.1077.2011.11519

无机材料学报 ›› 2012, Vol. 27 ›› Issue (2): 214-218.DOI: 10.3724/SP.J.1077.2011.11519 CSTR: 32189.14.SP.J.1077.2011.11519

丝网印刷技术制备高性能织构化K_0.45Na_0.55NbO₃陶瓷

李亚利¹, 惠春¹, 李永祥², 王有亮²

(1. 上海交通大学生物医学工程学院, 上海 200030; 2. 中国科学院上海硅酸盐研究所, 中国科学院无机功能材料与器件重点实验室, 上海 200050)

收稿日期:2011-08-19 出版日期:2012-02-10 网络出版日期:2012-01-05
作者简介:李亚利. E-mail: liyali0128@yahoo.com.cn

Enhanced Ferroelectric and Piezoelectric Properties of Textured K_0.45Na_0.55NbO₃ Ceramics Prepared by Screen-printing Technique

LI Ya-Li¹, HUI Chun¹, LI Yong-Xiang², WANG You-Liang²

(1. School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China; 2. The Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China)

Received:2011-08-19 Published:2012-02-10 Online:2012-01-05
About author:LI Ya-Li (1981-), female, candidate of PhD. E-mail: liyali0128@yahoo.com.cn
Supported by:
Foundation item: National Basic Research Program of China (2009CB623305);National Natural Science Foundation of China (50932007)

摘要/Abstract

摘要：

以片状NaNbO₃晶粒为模板, 以K₄CuNb₈O₂₃(KCN)为助烧剂, 通过丝网印刷技术制备出晶粒定向的K_0.45Na_0.55NbO₃(KNN)无铅压电陶瓷. 片状的NaNbO₃模板是以铋层状Bi_2.5Na_3.5Nb₅O₁₈为前驱物, 通过熔盐-拓扑微观反应制得. 织构化(K_0.45Na_0.55)NbO₃陶瓷的晶粒定向程度达到95%, 其定向晶粒沿丝网印刷方向平行排列, 块体的相对密度达到92%. 在平行和垂直于丝网印刷方向的两个面上, 织构化(K_0.45Na_0.55)NbO₃陶瓷表现出不同的定向程度, 且其介电、铁电和压电性能均明显优于无织构化陶瓷. 介电常数ε_r、压电系数d₃₃、机电耦合系数k_p在平行于丝网印刷方向的表面上, 分别提高了75%、44%、42%; 在垂直于丝网印刷方向的表面上分别提高了35%、30%、35%. 相对于目前其它的晶粒定向技术, 丝网印刷方法既简单又高效.

关键词: 晶粒定向, 织构化, 丝网印刷, KNN陶瓷

Abstract:

Grain oriented K_0.45Na_0.55NbO₃ (KNN) lead-free piezoceramics with sintering aid K₄CuNb₈O₂₃ (KCN) were fabricated by screen-printing technique, using plate-like NaNbO₃ as templates. The plate-like NaNbO₃ template particles were synthesized from bismuth layer-structured Bi_2.5Na_3.5Nb₅O₁₈ precursors by the topochemical micro-crystal conversion method. The textured KNN ceramics showed brick-wall-like grains which aligned parallel to the screen-printing direction. The screen-printed KNN ceramics possessed both a high grain orientation (Lotgering factor f=95%) and a relative high density (92% of theoretical density). The orientation degree and electrical properties of textured (K_0.45Na_0.55)NbO₃ ceramics exhibited anisotropic feature in the parallel (sp//) and perpendicular (sp?) plane. Compared with the random oriented ceramics with same composition, the dielectric constant ε_r, piezoelectric constant d₃₃, and electromechanical coupling coefficient k_p were increased by about 75%, 44% and 42% in sp// plane, respectively, and about 35%, 30% and 35% in sp? plane, respectively. Screen-printing is a simple and effective method for the fabrication of grain oriented lead-free piezoelectric ceramics.

Key words: grain orientation, texture, screen-printing, KNN ceramic

中图分类号:

TB321

李亚利, 惠春, 李永祥, 王有亮. 丝网印刷技术制备高性能织构化K_0.45Na_0.55NbO₃陶瓷[J]. 无机材料学报, 2012, 27(2): 214-218.

LI Ya-Li, HUI Chun, LI Yong-Xiang, WANG You-Liang. Enhanced Ferroelectric and Piezoelectric Properties of Textured K_0.45Na_0.55NbO₃ Ceramics Prepared by Screen-printing Technique[J]. Journal of Inorganic Materials, 2012, 27(2): 214-218.

图/表 7

Fig. 1 The micrograph of molten salt synthesized NaNbO3 platelets

Fig. 2 XRD patterns of textured KNN ceramics sintered at 970℃, 1070℃, 1080℃, 1090℃ for 2 h in air

Fig. 3 SEM images of KNN textured ceramics sintered at (a) 970℃; (b) 1080℃

Fig. 4 XRD patterns of the textured KNN ceramics in the sp// plane, sp^ plane, and the random-oriented ceramics

Fig. 5 The P-E hysteresis loops of the textured and random- oriented KNN ceramics measured at room temperature

Fig. 6 The temperature dependence of the dielectric properties for the textured KNN ceramics in sp// plane and sp⊥ plane in comparison with random-oriented KNN ceramic

Table 1 Comparison of electrical properties between textured and random-oriented KNN ceramics

Electrical property	Textured ceramics (sp//)	Textured ceramics (sp⊥)	Random-oriented ceramics
ε_r (1 kHz)	432	331	246
tgδ (1 kHz)	0.06	0.04	0.02
P_r/(μC·cm^-2)	18.4	18.6	23.1
E_c/(kV·cm^-1)	10.1	10.5	12.6
d₃₃/(pC·N^-1)	133	120	92
k_P	0.44	0.42	0.31
T_c /℃	401	401	401

参考文献 17

[1]	Birol H, Damjanovic D, Setter N. Preparation and characterization of (K0.5Na0.5)NbO3 ceramics. J. Euro. Ceram. Soc., 2006, 26(6): 861-866.
[2]	Kosec M, Kolar D. On activated sintering and electrical properties of NaKNbO3. Mat. Res. Bull., 1975, 10(5): 335-340.
[3]	Zhang B P, Li J F, Wang K.et al. Compositional dependence of piezoelectric properties in NaxK1-xNbO3 lead-free ceramics prepared by spark plasma sintering. J. Am. Ceram. Soc., 2006, 89(5): 1605-1609.
[4]	Yilmaz H, Trolier-Mckinstry S, Messing G L. (Reactive) templated grain growth of textured sodium bismuth titanate (Na1/2Bi1/2TiO3-BaTiO3) ceramics-II dielectric and piezoelectric properties. J. Electroceram., 2003, 11(3): 217-226.
[5]	Saito Y, Takao H, Tani T, et al. Lead-free piezoceramics. Nature, 2004, 432(7013): 84-87
[6]	Liu J, Shen Z J, Yan H X, et al. Dielectric, piezoelectric, and ferroelectric properties of grain-orientated Bi3.25La0.75Ti3O12 ceramics. J. Appl. Phys., 2007, 102(10): 104107-104110.
[7]	Tam W K, Kwok K W, Zeng J T, et al. Fabrication of textured BNKLT ceramics by reactive templated grain growth using NBT templates. J. Phys. D: Appl. Phys., 2008, 41(4): 45402-045405.
[8]	Chang Y F, Poterala S F, Yang Z P, et al. <001> textured (K0.5Na0.5)(Nb0.97Sb0.03)O3 piezoelectric ceramics with high electromechanical coupling over a broad temperature range. Appl. Phys. Lett., 2009, 95(23): 232905-232907.
[9]	Zeng J T, Li Y X, Yang Q B, et al. Grain oriented CaBi4Ti4O15 piezoceramics prepared by the screen-printing multilayer grain growth technique. J. Eur. Ceram. Soc., 2005, 25(12): 2727-2730.
[10]	Wu M J, Li Y X, Wang D, et al. Grain oriented (Na0.5Bi0.5)0.94Ba0.06TiO3 piezoceramics prepared by the screen-printing multilayer grain growth technique. J. Electroceram., 2009, 22(1/2/3): 131-135.
[11]	Winter M R, DiAntonio C B, Yang P, et al. Screen printing to achieve highly textured Bi4Ti3O12. J. Am. Ceram. Soc., 2010, 93(7): 1922-1926.
[12]	Lim J B, Zhang S, Jeon J H, et al. (K,Na)NbO3-based ceramics for piezoelectric ‘‘hard’’ lead-free materials. J. Am. Ceram. Soc., 2010, 93(5): 1218-1220.
[13]	Zhao P, Zhang B P, Li J F. High piezoelectric d33 coefficient in Li-modified lead-free (Na,K)NbO3 ceramics sintered at optimal temperature. Appl. Phys. Lett., 2007, 90(24): 242909-242912.
[14]	Lotgering F K. Topotactical reactions with ferromagnetic oxides having hexagonal crystal structures-I. J. Inorg. Nucl. Chem. 1959, 9(2): 113-123
[15]	Takao H, Saito Y, Aoki Y, et al. Microstructural evolution of crystalline-oriented (K0.5Na0.5)NbO3 piezoelectric ceramics with a sintering aid of CuO. J. Am. Ceram. Soc., 2006, 89(6): 1951-1956.
[16]	Zhang S, Lim J B, Lee H J, et al. Characterization of hard piezoelectric lead-free ceramic. IEEE Trans. Ultrason. Ferroelectr. Freq. Control., 2009, 56(8): 1523-1527.
[17]	Gao F, Zhang C S, Liu X C, et al. Microstructure and piezoelectric properties of textured (Na0.84K0.16)0.5Bi0.5TiO3 lead-free ceramics. J. Eur. Ceram. Soc., 2007, 27(12): 3453-3458.

丝网印刷技术制备高性能织构化K_0.45Na_0.55NbO₃陶瓷

Enhanced Ferroelectric and Piezoelectric Properties of Textured K_0.45Na_0.55NbO₃ Ceramics Prepared by Screen-printing Technique

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