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dc.contributor.authorTu, Chi-Shun
dc.contributor.authorChien, R. R.
dc.contributor.authorSchmidt, V. Hugo
dc.contributor.authorLee, S.-C.
dc.contributor.authorHuang, C.-C.
dc.date.accessioned2019-02-08T18:37:00Z
dc.date.available2019-02-08T18:37:00Z
dc.date.issued2012
dc.identifier.citationC.-S. Tu, R.R. Chien, V.H. Schmidt, S.C. Lee, and C.-C. Huang, “Temperature-dependent structures of proton-conducting Ba(Zr0.8-xCexY0.2)O2.9 ceramics by Raman scattering and x-ray diffraction,” Journal of Physics: Condensed Matter 24, 155403 (6 pp.) (2012), doi: 10.1088/0953-8984/24/15/155403.en_US
dc.identifier.issn0953-8984
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/15228
dc.description.abstractIn situ temperature-dependent micro-Raman scattering and x-ray diffraction have been performed to study atomic vibration, lattice parameter and structural transition of proton-conducting Ba(Zr0.8−xCexY 0.2)O2.9 (BZCY) ceramics (x = 0.0–0.8) synthesized by the glycine–nitrate combustion process. The Raman vibrations have been identified and their frequencies increase with decreasing x as the heavier Ce4+ ions are replaced by Zr4+ ions. The main Raman vibrations of Ba(Ce0.8Y 0.2)O2.9 appear near 305, 332, 352, 440 and 635 cm−1. The X–O ( X=Ce, Zr, Y) stretching modes are sensitive to the variation of Ce/Zr ratio. A rhombohedral–cubic structural transition was observed for x = 0.5–0.8, in which the transition shifts toward higher temperature as cerium increases, except for Ba(Ce0.8Y 0.2)O2.9. A minor monoclinic phase possibly coexists in the rhombohedral matrix for x = 0.5–0.8. The lower-cerium BZCYs (x = 0.0–0.4) ceramics do not exhibit any transition in the region of 20–900 °C, indicating a cubic phase at and above room temperature.en_US
dc.description.sponsorshipDOE subcontract DE-AC06-76RL01830; National Science Council of Taiwan grant nos. 96-2112-M-030-001 and 100-2112-M-030-002-MY3en_US
dc.language.isoenen_US
dc.rightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en_US
dc.titleTemperature-dependent structures of proton-conducting Ba(Zr0.8-xCexY0.2)O2.9 ceramics by Raman scattering and x-ray diffractionen_US
dc.typeArticleen_US
mus.citation.extentfirstpage155403en_US
mus.citation.extentlastpage155408en_US
mus.citation.issue15en_US
mus.citation.journaltitleJournal of Physics: Condensed Matteren_US
mus.citation.volume24en_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.identifier.doi10.1088/0953-8984/24/15/155403en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentPhysics.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage4en_US


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