Preparation and characterization of hafnium doped barium titanate ceramics

被引：55

作者：

Tian, H. Y. ^{[1
]}

Wang, Y.

Miao, J.

Chan, H. L. W.

Choy, C. L.

机构：

[1] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China

[2] Hong Kong Polytech Univ, Mat Res Ctr, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 431卷 / 1-2期

关键词：

X-ray diffraction; thermal analysis; solid-state reaction; piezoelectric property;

D O I：

10.1016/j.jallcom.2006.05.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

BaHfxT1-xO3 powders and ceramics with x varying from 0 to 0.15 were prepared via a solid-state reaction technique. Probable reaction pathways were elucidated by employing simultaneous thermogravimetry analysis and differential scanning calorimetry (TGA and DSC). Phase variations in compounds were analyzed by X-ray diffraction (XRD). The microstructures and composition of the powders and ceramics were measured and confirmed by SEM images and EDX spectra. Dielectric properties and piezoelectric properties were investigated. The results suggested that the three transitions in BaTiO3 were pinched by substituting titanium with hafnium and the Curie temperatures decreased as the hafnium content rose in the compounds. A high piezoelectric parameter (d(33) similar to 305 pC/N) was obtained between the orthorhombic and rhombohedral phases. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：197 / 202

页数：6

共 11 条

[1] Piezoelectric and electrostrictive strain behavior of Ce-doped BaTiO3 ceramics [J].

Ang, C ;

Yu, Z ;

Jing, Z ;

Guo, R ;

Bhalla, AS ;

Cross, LE .

APPLIED PHYSICS LETTERS, 2002, 80 (18) :3424-3426

[2] ON THE TRANSITION-TEMPERATURES OF BACO3 AND SRCO3 AS DTA TEMPERATURE REFERENCE MATERIALS [J].

IWAFUCHI, K ;

WATANABE, C ;

OTSUKA, R .

THERMOCHIMICA ACTA, 1983, 64 (03) :381-386

[3]

JAFFE B, 1971, PIEZOELECTRIC CERAMI, P47

[4] Dielectric properties of Ba(Ti1-yYy)O3 ceramics [J].

Jing, Z ;

Ang, C ;

Yu, Z ;

Vilarinho, PM ;

Baptista, JL .

JOURNAL OF APPLIED PHYSICS, 1998, 84 (02) :983-986

[5] Peculiarities of CaCO3, SrCO3 and BaCO3 decomposition in CO2 as a proof of their primary dissociative evaporation [J].

L'vov, BV ;

Ugolkov, VL .

THERMOCHIMICA ACTA, 2004, 410 (1-2) :47-55

[6] Characterization of hydrothermally prepared BaTi1-xZrxO3 [J].

Outzourhit, A ;

Raghni, MAE ;

Hafid, ML ;

Bensamka, F ;

Outzourhit, A .

JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 340 (1-2) :214-219

[7] Crystallographically engineered BaTiO3 single crystals for high-performance piezoelectrics [J].

Park, SE ;

Wada, S ;

Cross, LE ;

Shrout, TR .

JOURNAL OF APPLIED PHYSICS, 1999, 86 (05) :2746-2750

[8] Effects of grain size on the dielectric properties and tunabilities of sol-gel derived Ba(Zr0.2Ti0.8)O3 ceramics [J].

Tang, XG ;

Wang, J ;

Wang, XX ;

Chan, HLW .

SOLID STATE COMMUNICATIONS, 2004, 131 (3-4) :163-168

[9] Ferroelectric characteristics of ytterbium-doped barium zirconium titanate ceramics [J].

Wang, YL ;

Li, LT ;

Qi, JQ ;

Gui, ZL .

CERAMICS INTERNATIONAL, 2002, 28 (06) :657-661

[10] Orientation dependence of the ferroelectric and piezoelectric behavior of Ba(Ti1-xZrx)O3 single crystals [J].

Yu, Z ;

Guo, RY ;

Bhalla, AS .

APPLIED PHYSICS LETTERS, 2000, 77 (10) :1535-1537

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