Modified phase transition and electrical properties of [Li0.05(Na0.535K0.48)0.95](Nb0.94Sb0.06)O3 lead-free piezoelectric ceramic by sintering temperature

被引：2

作者：

Zhao Xiaokun ^{[1
]}

Zhang Boping ^{[1
]}

Zhao Lei ^{[1
]}

Zhu Lifeng ^{[1
]}

Li Yan ^{[1
]}

Cheng Liqian ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

RARE METALS | 2012年 / 31卷 / 06期

基金：

北京市自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

lead-free; sintering temperature; microstructure; phase; piezoelectric properties; piezoelectric ceramic;

D O I：

10.1007/s12598-012-0563-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Li/Sb-doped (Na,K)NbO3 with a nominal composition of [Li-0.05(Na0.535K0.48)(0.95)](Nb0.94Sb0.06)O-3 ceramic was synthesized by normal sintering. The phase structure, microstructure, and electrical properties were investigated with a special emphasis on the influence of the sintering temperature. A polymorphic phase transition (PPT) from orthorhombic to tetragonal symmetry was observed when the sintering temperature was raised from 1040 to 1050 degrees C, whereby the piezoelectric coefficient d(33) and the electromechanical coupling coefficient k(p) reached the peak values of 245 pC.N-1 and 41.2%, respectively. The PPT induced by varying the sintering temperature is due to the different volatilization extents of alkali metals and appears to a lower sintering temperature with increasing Li content. The trace modifying of alkali metal content is more effective than doping B site element to enhance the d(33) value.

引用

页码：590 / 594

页数：5

共 21 条

[1] (Na0.5K0.5)NbO3-LiTaO3 lead-free piezoelectric ceramics [J].

Guo, YP ;

Kakimoto, K ;

Ohsato, H .

MATERIALS LETTERS, 2005, 59 (2-3) :241-244

[2] 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

[3] Influence of Sb2O3 doping on the properties of KBT-NBT-BT lead-free piezoelectric ceramics [J].

Huang Xinyou ;

Gao Chunhua ;

Wei Minxian ;

Chen Zhigang ;

Cui Yongzhen .

RARE METALS, 2011, 30 (01) :72-75

[4] PIEZOELECTRIC PROPERTIES OF LEAD ZIRCONATE-LEAD TITANATE SOLID-SOLUTION CERAMICS [J].

JAFFE, B ;

ROTH, RS ;

MARZULLO, S .

JOURNAL OF APPLIED PHYSICS, 1954, 25 (06) :809-810

[5]

Jaffe B., 1971, PIEZOELECTRIC CERAMI, P193

[6]

Li HT, 2009, IEEE INT FERRO, P159

[7] Phase structure and electrical properties of K0.5Na0.5(Nb0.94Sb0.06) O3-LiTaO3 lead-free piezoelectric ceramics [J].

Lin, Dunmin ;

Kwok, K. W. ;

Lam, K. H. ;

Chan, H. L. W. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (05)

[8] Phase structure and nano-domain in high performance of BaTiO3 piezoelectric ceramics [J].

Ma, Nan ;

Zhang, Bo-Ping ;

Yang, Wei-Gang ;

Guo, Dong .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2012, 32 (05) :1059-1066

[9] Effect of CuO on the sintering temperature and piezoelectric properties of lead-free 0.95(Na0.5K0.5)NbO3-0.05CaTiO3 ceramics [J].

Park, Seok-Jung ;

Park, Hwi-Yeol ;

Cho, Kyung-Hoon ;

Nahm, Sahn ;

Lee, Hyeung-Gyu ;

Kim, Duk-Hee ;

Choi, Byung-Hyun .

MATERIALS RESEARCH BULLETIN, 2008, 43 (12) :3580-3586

[10] Perspective on the Development of Lead-free Piezoceramics [J].

Roedel, Juergen ;

Jo, Wook ;

Seifert, Klaus T. P. ;

Anton, Eva-Maria ;

Granzow, Torsten ;

Damjanovic, Dragan .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (06) :1153-1177

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