Processing of Manganese-Doped [Bi0.5Na0.5]TiO3 Ferroelectrics: Reduction and Oxidation Reactions During Calcination and Sintering

被引：73

作者：

Aksel, Elena ^{[2
]}

Jakes, Peter ^{[1
]}

Erdem, Emre ^{[1
]}

Smyth, Donald M. ^{[3
]}

Ozarowski, Andrew ^{[4
]}

van Tol, Johan ^{[4
]}

Jones, Jacob L. ^{[2
]}

Eichel, Ruediger-A. ^{[1
]}

机构：

[1] Univ Freiburg, Inst Phys Chem, D-79104 Freiburg, Germany

[2] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA

[3] Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA

[4] Florida State Univ, Natl High Magnet Field Lab, Ctr Interdisciplinary Magnet Resonance, Tallahassee, FL 32310 USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2011年 / 94卷 / 05期

关键词：

ELECTRON-PARAMAGNETIC-RESONANCE; LEAD-FREE; PHASE-TRANSITIONS; PIEZOELECTRIC CERAMICS; DEFECT STRUCTURE; PBTIO3; CERAMICS; SPIN-RESONANCE; VALENCE STATE; MN; BATIO3;

D O I：

10.1111/j.1551-2916.2010.04249.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 effect of multivalent manganese doping on the defect structure is studied for the "lead-free" piezoelectric [Bi0.5Na0.5]TiO3 (BNT) by means of high-frequency electron paramagnetic resonance (EPR) spectroscopy. The results show that manganese is incorporated with di- and trivalent oxidation states on a titanium site, acting as an acceptor (Mn'(Ti), Mn ''(Ti)). In particular, it is demonstrated that during calcination at 800 degrees C the manganese functional centers are oxidized to Mn3+. Subsequent to the sintering at 1100 degrees C, part of the trivalent manganese centers are reduced back to the initial Mn2+-oxidation state.

引用

页码：1363 / 1367

页数：5

共 45 条

[1] Abragam A., 1970, ELECT PARAMAGNETIC R
[2] PROCESSING AND PROPERTIES OF Na0.5Bi0.5TiO3 PIEZOELECTRIC CERAMICS MODIFIED WITH La, Mn AND Fe
Aksel, Elena
Foronda, Humberto
Calhoun, Kyle A.
Jones, Jacob L.
Schaab, Silke
Granzow, Torsten
[J]. FUNCTIONAL MATERIALS LETTERS, 2010, 3 (01) : 45 - 48
[3] Defect structure and materials "hardening" in Fe2O3-doped [Bi0.5Na0.5]TiO3 ferroelectrics
Aksel, Elena
Erdem, Emre
Jakes, Peter
Jones, Jacob L.
Eichel, Ruediger-A.
[J]. APPLIED PHYSICS LETTERS, 2010, 97 (01)
[4] [Anonymous], 2000, DEFECT CHEM MET OXID
[5] MN-DOPED POLYCRYSTALLINE BATIO3
BURN, I
[J]. JOURNAL OF MATERIALS SCIENCE, 1979, 14 (10) : 2453 - 2458
[6] Chase M.W., 1998, J. of Physical and Chemical Reference Data, DOI 10.18434/T42S31
[7] Mn-modified Pb(Mg1/3Nb2/3)O3-PbTiO3 ceramics:: Improved mechanical quality factors for high-power transducer applications
Chen, YH
Hirose, S
Viehland, D
Takahashi, S
Uchino, K
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2000, 39 (08): : 4843 - 4852
[8] Materials science - Lead-free at last
Cross, E
[J]. NATURE, 2004, 432 (7013) : 24 - 25
[9] WHAT CAN BE EXPECTED FROM LEAD-FREE PIEZOELECTRIC MATERIALS?
Damjanovic, Dragan
Klein, Naama
Li, Jin
Porokhonskyy, Viktor
[J]. FUNCTIONAL MATERIALS LETTERS, 2010, 3 (01) : 5 - 13
[10] Desu S. B., 1981, ADV CERAM, V1, P189

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