Effect of Sintering Temperature on Microstructure and Electric Properties of 0.95(K0.5Na0.5)NbO3-0.05Li(Nb0.5Sb0.5)O3with Copper Oxide Sintering Aid

被引：51
作者：
Zhao, Yongjie [1 ]
Zhao, Yuzhen [1 ]
Huang, Rongxia [1 ]
Liu, Rongzheng [1 ]
Zhou, Heping [1 ]
机构：
[1] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2011年 / 94卷 / 03期
基金：
中国国家自然科学基金;
关键词：
FREE PIEZOELECTRIC CERAMICS; CUO;
D O I：
10.1111/j.1551-2916.2010.04353.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The 0.95(K0.5Na0.5NbO3)-0.05Li(Nb0.5Sb0.5)O-3 doped with 0.8 mol% copper oxide (CuO) lead-free piezoelectric ceramics were synthesized by conventional solid-state reaction route. The introduction of CuO could significantly improve the sinterability of 0.95(K0.5Na0.5NbO3)-0.05Li(Nb0.5Sb0.5)O-3 ceramics. The grain size of the specimen was considerably decreased due to the formation of a large amount of liquid phase when the sintering temperature exceeded 960 degrees C. The piezoelectric constant (d(33)), planar electromechanical coupling (k(p)), and dielectric constant ( <file name="jace_04353_mu1.gif" type="gif"/>) values increased with increasing relative density and grain size. The improved piezoelectric and dielectric properties of d(33)=207 pC/N, k(p)=44%, tan delta=0.0137, Q(m)=320, and <file name="jace_04353_mu2.gif" type="gif"/>=340 can be obtained for specimens sintered at 960 degrees C for 2 h.
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页码：656 / 659
页数：4
相关论文
共 25 条
[1]   Effect of ZnO and CuO on the sintering temperature and piezoelectric properties of a hard piezoelectric ceramic [J].
Ahn, CW ;
Song, HC ;
Nahm, S ;
Priya, S .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2006, 89 (03) :921-925
[2]   Low temperature sintering and piezoelectric properties in Pb(ZrxTi1-x)O3-Pb(Zn1/3Nb2/3)O3-Pb(Ni1/3Nb2/3)O3 ceramics [J].
Ahn, CW ;
Song, HC ;
Park, SH ;
Nahm, S ;
Uchino, K ;
Priya, S ;
Lee, HG ;
Kang, NK .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2005, 44 (03) :1314-1321
[3]  
Dai YJ, 2007, APPL PHYS LETT, V90, DOI 10.1063/1.2751607
[4]   (Na0.5K0.5)NbO3-LiTaO3 lead-free piezoelectric ceramics [J].
Guo, YP ;
Kakimoto, K ;
Ohsato, H .
MATERIALS LETTERS, 2005, 59 (2-3) :241-244
[5]   Phase transitional behavior and piezoelectric properties of (Na0.5K0.5)NbO3-LiNbO3 ceramics [J].
Guo, YP ;
Kakimoto, K ;
Ohsato, H .
APPLIED PHYSICS LETTERS, 2004, 85 (18) :4121-4123
[6]   Temperature dependence on the piezoelectric property of (1-x)(Na0.5K0.5)NbO3-xLiNbO3 ceramics [J].
Higashide, Kazuhiko ;
Kakimoto, Ken-ichi ;
Ohsato, Hitoshi .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (13-15) :4107-4110
[7]   Piezoelectric properties of Li- and Ta-modified (K0.5Na0.5)NbO3 ceramics -: art. no. 182905 [J].
Hollenstein, E ;
Davis, M ;
Damjanovic, D ;
Setter, N .
APPLIED PHYSICS LETTERS, 2005, 87 (18) :1-3
[8]   ACTIVATED SINTERING AND ELECTRICAL PROPERTIES OF NAKNBO3 [J].
KOSEC, M ;
KOLAR, D .
MATERIALS RESEARCH BULLETIN, 1975, 10 (05) :335-339
[9]   Microstructure, dielectric and piezoelectric properties of (K0.5Na0.5)NbO3-Ba(Ti0.95Zr0.05)O3 lead-free ceramics with CuO sintering aid [J].
Lin, D. ;
Kwok, K. W. ;
Chan, H. L. W. .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2007, 88 (02) :359-363
[10]   Effect of Alkali Elements Content on the Structure and Electrical Properties of (K0.48Na0.48Li0.04)(Nb0.90Ta0.04Sb0.06)O3 Lead-Free Piezoelectric Ceramics [J].
Lin, Dunmin ;
Kwok, Kin Wing ;
Chan, Helen Lai-wa .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (11) :2765-2767
123