Influence of Nonstoichiometry on Extrinsic Electrical Conduction and Microwave Dielectric Loss of BaCo1/3Nb2/3O3 Ceramics

被引：53

作者：

Li, Ming ^{[1
]}

Feteira, Antonio ^{[1
]}

Mirsaneh, Mehdi ^{[1
]}

Lee, Soonil ^{[2
]}

Lanagan, Michael T. ^{[2
]}

Randall, Clive A. ^{[2
]}

Sinclair, Derek C. ^{[1
]}

机构：

[1] Univ Sheffield, Dept Mat Engn, Ceram & Composites Lab, Sheffield S1 3JD, S Yorkshire, England

[2] Penn State Univ, Mat Res Inst, Ctr Dielectr Studies, University Pk, PA 16802 USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2010年 / 93卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

BA(ZN1/3TA2/3)O-3 CERAMICS; SINTERED ALUMINA; MICROSTRUCTURE; TRANSITION; OXIDE; BA(CO1/3NB2/3)O-3; SUBSTITUTION; RESONATORS; BOUNDARIES; CRYSTALS;

D O I：

10.1111/j.1551-2916.2010.03999.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 microwave (MW) dielectric loss (or quality factor, Q) of BaCo1/3Nb2/3O3 (BCN) ceramics exhibits a strong dependence on sample-processing conditions and is not always consistent with the degree of 1:2 B-site cation ordering. Impedance spectroscopy results reveal that these BCN ceramics exhibit remarkably different electrical properties due to low levels of nonstoichiometry induced during ceramic processing. These compositional changes are difficult to detect by common chemical techniques but can have a significant influence on the electrical properties, and in particular on the extrinsic electrical conduction and Q. The influence of extrinsic conduction induced by ceramic processing should therefore be considered when optimizing Q in MW dielectric ceramics.

引用

页码：4087 / 4095

页数：9

共 40 条

[1] Effects of microstructure on the microwave dielectric properties of Ba(Co1/3Nb2/3)O3 and (1-x)Ba(Co1/3Nb2/3)O3-xBa(Zn1/3Nb2/3)O3 ceramics [J].

Ahn, CW ;

Jang, HJ ;

Nahm, S ;

Park, HM ;

Lee, HJ .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2003, 23 (14) :2473-2478

[2] Microstructure and microwave dielectric properties of Ba(Co1/3Nb2/3)O3 ceramics [J].

Ahn, CW ;

Nahm, S ;

Lim, YS ;

Choi, W ;

Park, HM ;

Lee, HJ .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2002, 41 (08) :5277-5280

[3] Sintered alumina with low dielectric loss [J].

Alford, NM ;

Penn, SJ .

JOURNAL OF APPLIED PHYSICS, 1996, 80 (10) :5895-5898

[4] Dielectric loss of oxide single crystals and polycrystalline analogues from 10 to 320 K [J].

Alford, NM ;

Breeze, J ;

Wang, X ;

Penn, SJ ;

Dalla, S ;

Webb, SJ ;

Ljepojevic, N ;

Aupi, X .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2001, 21 (15) :2605-2611

[5]

[Anonymous], 2000, DEFECT CHEM MET OXID

[6] Cation ordering, domain growth, and zinc loss in the microwave dielectric oxide Ba3ZnTa2O9-δ [J].

Bieringer, M ;

Moussa, SM ;

Noailles, LD ;

Burrows, A ;

Kiely, CJ ;

Rosseinsky, MJ ;

Ibberson, RM .

CHEMISTRY OF MATERIALS, 2003, 15 (02) :586-597

[7] Do Grain Boundaries Affect Microwave Dielectric Loss in Oxides? [J].

Breeze, Jonathan D. ;

Perkins, James M. ;

McComb, David W. ;

Alford, Neil McN. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (03) :671-674

[8]

Chai L, 1997, J AM CERAM SOC, V80, P3193, DOI 10.1111/j.1151-2916.1997.tb03249.x

[9]

CONSTANT KP, 1992, J PHYS CHEM SOLIDS, V53, P405, DOI 10.1016/0022-3697(92)90175-D

[10]

Davies PK, 1997, J AM CERAM SOC, V80, P1727, DOI 10.1111/j.1151-2916.1997.tb03046.x

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