001     46092
005     20240709081739.0
024 7 _ |2 DOI
|a 10.1016/j.jcrysgro.2005.03.038
024 7 _ |2 WOS
|a WOS:000229982600028
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037 _ _ |a PreJuSER-46092
041 _ _ |a eng
082 _ _ |a 540
084 _ _ |2 WoS
|a Crystallography
084 _ _ |2 WoS
|a Materials Science, Multidisciplinary
084 _ _ |2 WoS
|a Physics, Applied
100 1 _ |a Pithan, C.
|b 0
|u FZJ
|0 P:(DE-Juel1)130894
245 _ _ |a Microemulsion mediated synthesis of nanocrystalline (Kx,Na1-x)NbO3 powders
260 _ _ |a Amsterdam [u.a.]
|b Elsevier
|c 2005
300 _ _ |a 191 - 200
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
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336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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336 7 _ |a JOURNAL_ARTICLE
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336 7 _ |a article
|2 DRIVER
440 _ 0 |a Journal of Crystal Growth
|x 0022-0248
|0 3235
|v 280
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a The present study reports on the synthesis of nanocrystalline (K-x,Na1-x)NbO3 powders prepared via microemulsion mediated hydrolytic decomposition of mixed alkoxide solutions. Compositions with different K/Na ratios ranging between the two end members KNbO3 and NaNbO3 have been synthesized and characterized with respect to stoichiometry, purity, crystalline structure, particle size and powder morphology using X-ray diffraction, Raman spectroscopy and inductively coupled plasma with optical emission spectroscopy. Both raw as well as calcined powders were investigated. For the technically relevant and piezoelectric most active composition (K-0.50,Na-0.50)NbO3 the results are presented and discussed in comparison to micron-sized and submicron-sized powders, that have been prepared by solid state reaction for reference. The study of the crystallographic structure of these reference powders by XRD and Raman spectroscopy confirms the size induced phase transition between the thermodynamically stable monoclinic modification for large particles towards a new triclinic polymorph, which has been reported for nano-powders of this composition by us previously. As possible origin for this phenomenon, internal OH- groups, variations in K-/Na-site occupancy and mechanical stresses arising from the large surface curvature of the nanocrystalline powders are addressed. (c) 2005 Elsevier B.V. All rights reserved.
536 _ _ |a Chemie und Dynamik der Geo-Biosphäre
|c U01
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536 _ _ |a Kondensierte Materie
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588 _ _ |a Dataset connected to Web of Science
650 _ 7 |a J
|2 WoSType
653 2 0 |2 Author
|a nanostructures
653 2 0 |2 Author
|a niobates
653 2 0 |2 Author
|a piezoelectric materials
700 1 _ |a Shiratori, Y.
|b 1
|u FZJ
|0 P:(DE-Juel1)VDB32996
700 1 _ |a Dornseiffer, J.
|b 2
|u FZJ
|0 P:(DE-Juel1)129189
700 1 _ |a Haegel, F.-H.
|b 3
|0 P:(DE-HGF)0
700 1 _ |a Magrez, A.
|b 4
|0 P:(DE-HGF)0
700 1 _ |a Waser, R.
|b 5
|u FZJ
|0 P:(DE-Juel1)131022
773 _ _ |a 10.1016/j.jcrysgro.2005.03.038
|g Vol. 280, p. 191 - 200
|p 191 - 200
|q 280<191 - 200
|0 PERI:(DE-600)1466514-1
|t Journal of crystal growth
|v 280
|y 2005
|x 0022-0248
856 7 _ |u http://dx.doi.org/10.1016/j.jcrysgro.2005.03.038
909 C O |o oai:juser.fz-juelich.de:46092
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|v Chemie und Dynamik der Geo-Biosphäre
|l Chemie und Dynamik der Geo-Biosphäre
|b Environment (Umwelt)
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913 1 _ |k M02
|v Kondensierte Materie
|l Kondensierte Materie
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914 1 _ |y 2005
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
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|d 31.12.2006
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920 1 _ |k IFF-IEM
|l Elektronische Materialien
|d 31.12.2006
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