不同烧结工艺对K0.5Na0.5NbO3陶瓷微结构的影响

doi:10.3724/SP.J.1077.2012.00277

无机材料学报 ›› 2012, Vol. 27 ›› Issue (3): 277-280.DOI: 10.3724/SP.J.1077.2012.00277 CSTR: 32189.14.SP.J.1077.2012.00277

不同烧结工艺对K_0.5Na_0.5NbO₃陶瓷微结构的影响

郭福强, 张保花, 王伟, 陈惠敏

(昌吉学院物理系, 昌吉 831100)

收稿日期:2011-03-22 修回日期:2011-05-25 出版日期:2012-03-20 网络出版日期:2012-02-16
基金资助:
新疆维吾尔自治区高校科研计划青年教师科研培育基金(XJEDU2010S46)

Effect of Different Sintering Processing on the Microstructure of K_0.5Na_0.5NbO₃ Ceramics

GUO Fu-Qiang, ZHANG Bao-Hua, WANG Wei, CHEN Hui-Min

(Department of Physics, Changji College, Changji 831100, China)

Received:2011-03-22 Revised:2011-05-25 Published:2012-03-20 Online:2012-02-16
Supported by:
Xinjiang Uygur Autonomous Region of Scientific Research Program Training Young Teachers Fund Projects (XJEDU2010S46)

摘要/Abstract

摘要： 采用普通烧结方法和热压烧结方法制备了K_0.5Na_0.5NbO₃ (KNN)无铅压电陶瓷. 着重研究了两种烧结工艺对陶瓷的微观结构、晶粒形貌及致密度的影响. 研究结果表明, 两种烧结方法制备的陶瓷样品都具有单一的正交钙钛矿结构, 与普通烧结工艺相比, 利用热压烧结工艺制备的样品呈现较高的相对密度(大于98%)、较小的晶粒尺寸 (0.6 μm左右)及较低的介电损耗(1 kHz, tanδ≤2.8%). 实验中发现对于热压烧结的样品, 通过改变后期退火温度, 样品的晶粒尺寸, 致密度可以有规律地变化.

关键词: 热压烧结, 微观结构, 晶粒形貌, 无铅压电陶瓷

Abstract: Lead-free K_0.5Na_0.5NbO₃(KNN) piezoelectric ceramics were prepared by conventional solid-state reaction technique and sintered through conventional and hot-pressing sintering process respectively. The effects of sintering method and annealing temperature on the microstructure, morphology and density of KNN ceramics were investigated. The crystallographic structure of KNN ceramic was investigated by X-ray diffraction (XRD) and the fractured microstructures of sintered ceramics were characterized by scanning electronic microscope (SEM). The results show that all specimens exhibit pure perovskite structures. However, compared with the sample prepared with conventional sintering, higher relative density (greater than 98%), smaller grain size (0.6 μm) and lower tanδ (≤2. 8%, 1 kHz) are obtained in the KNN ceramics sintered through hot-pressure sintering process, meantime various particle sizes and densities of KNN ceramics can be obtained by selecting suitable annealing temperature.

Key words: hot-pressure sintering, microstructure, crystal morphology, lead-free, piezoelectric ceramic

中图分类号:

TN379

郭福强, 张保花, 王伟, 陈惠敏. 不同烧结工艺对K_0.5Na_0.5NbO₃陶瓷微结构的影响[J]. 无机材料学报, 2012, 27(3): 277-280.

GUO Fu-Qiang, ZHANG Bao-Hua, WANG Wei, CHEN Hui-Min. Effect of Different Sintering Processing on the Microstructure of K_0.5Na_0.5NbO₃ Ceramics[J]. Journal of Inorganic Materials, 2012, 27(3): 277-280.

参考文献

[1] Guo Y, Kakimoto K, Ohsato H, et al. Structure and electrical properties of lead-free (Na0.5K0.5)NbO3-BaTiO3 ceramics. Jpn. J. Appl. Phys., 2004, 43(9B): 6662-6666.

[2] Guo Y, Ken-ichi Kakimoto, Hitoshi Ohsato, et al. (Na0. 5K0. 5)NbO3- LiTaO3 lead-free piezoelectric ceramics. Mater. Lett., 2005, 59(2/3): 241-244.

[3] Park H Y, Ahn C W, Song H C, et al. Microstructure and piezoelectric properties of 0.95(Na0. 5K0. 5) NbO3-0.05BaTiO3 ceramics. Appl. Phys. Lett., 2006, 89(6): 062906-1-3.

[4] Saito Y, Takao H, Tani T, et al. Lead-free piezoceramics. Nature, 2004, 432(7013): 84-87.

[5] Birol H, Damjanovic D, Setter N, et al. Preparation and characterization of (K0.5Na0.5)NbO3 ceramics. J. Eur. Ceram. Soc., 2006, 26(6): 861-866.

[6] Guo Y P, Kakimoto Ken-ichi, Ohsato Hitoshi, et al. Phase transitional behavior and piezoelectric properties of Na0.5K0.5NbO3- LiNbO3 ceramics. Appl. Phys. Lett., 2004, 85(18): 4121-4123.

[7] Zhang S J, Xia R, Shrout T R, et al. Piezoelectric properties in perovskite 0.948(K0.5Na0.5)NbO3-0.052LiSbO3 lead-free ceramics. J. Appl. Phys., 2006, 100(10): 104108-1-6.

[8] Zuo R Z, Jürgen Rdel, Chen R Z, et al. Sintering and electrical properties of lead-free piezoelectric Na0.5K0.5NbO3 ceramics. J. Am. Ceram. Soc., 2006, 89(6): 2010-2015.

[9] Du H L, Li Z M, Tang F S, et al. Preparation and piezoelectric properties of (K0.5Na0.5)NbO3 lead-free piezoelectric ceramics with pressure-less sintering. Mater. Sci. Eng. B, 2006, 131(1/2/3): 83-87.

[10] CHU Rui-Qing, HAO Ji-Gong, XU Zhi-Jun, et al.Preparation and characterization of (K0.5Na0.5)0.94-2xLi0.06SrxNb0.98Sb0.02O3 lead-free piezoelectric ceramics. Journal of Inorganic Materials, 2010, 25(11): 1164-1168.

[11] Jaeger R E, Egerton L. Hot pressing of potassium-sodium niobates. J. Am. Ceram. Soc., 1962, 45(5): 209-213.

[12] Wang R, Xie R, Sekiya T, et al. Fabrication and characterization of potassium–sodium niobate piezoelectric ceramics by sparklasma-sintering method. Mater. Res. Bull., 2004, 39(11): 1709-1715.

[13] Liu L J, Fan H Q, Fang L, et al. Effects of Na/K evaporation on electrical properties and intrinsic defects in Na0.5K0.5NbO3 ceramics. Mater. Chem. Phys., 2009, 117(1): 138-141

[14] Shao S F, Zhang J L, Zhang Z, et al. High piezoelectric properties and domain configuration in BaTiO3 ceramics obtained through solid-state reaction route. Appl. Phys. Lett., 2008, 41(12): 125408-1-5.

[15] Liu L J, Fan H Q, Ke S M, et al. Effect of sintering temperature on on the structure and properties of cerium-doped 0.94(Bi0.5Na0.5)TiO3-0.06BaTiO3 piezoelectric ceramics. J. Alloys Compd., 2008, 458(1/2): 504-508.

不同烧结工艺对K_0.5Na_0.5NbO₃陶瓷微结构的影响

Effect of Different Sintering Processing on the Microstructure of K_0.5Na_0.5NbO₃ Ceramics

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