Change search
ReferencesLink to record
Permanent link

Direct link
Structure and properties of Ba6 − xLnxNb10O30, Ln = La, Ce and Nd compounds
Show others and affiliations
1997 (English)In: Materials research bulletin, ISSN 0025-5408, E-ISSN 1873-4227, Vol. 32, no 4, 409-419 p.Article in journal (Refereed) Published
Abstract [en]

Ba6 − xLnxNb10O30 compounds, Ln = La, Ce and Nd, with a tetragonal tungsten bronze-type structure have been synthesized and were characterized by X-ray powder diffraction and EDS analysis. The homogeneity regions of the obtained compounds were found to be 0 ≤ x ≤ 2 for La, and 0 ≤ x ≤ 1.5 for Ce and Nd. The crystal structures of Ba5LaNb10O30 and Ba4La2Nb10O30 were refined using X-ray powder diffraction data. Refinement indicated the presence of vacancies in the positions. This observation was supported by oxidation studies of the La-substituted compounds. The temperature dependence of the normalized resistivity of the compounds showed a nonmetallic behavior. The increase in the ratio with decreasing temperature is less distinct for the phases with the higher concentration of rare-earth cation.

Place, publisher, year, edition, pages
1997. Vol. 32, no 4, 409-419 p.
Keyword [en]
oxides, chemical synthesis, X-ray diffraction, crystal structure, electric properties
National Category
Materials Chemistry
Research subject
Materials Chemistry
URN: urn:nbn:se:su:diva-43894DOI: 10.1016/S0025-5408(97)80008-6OAI: diva2:371120
Available from: 2010-11-18 Created: 2010-10-29 Last updated: 2011-11-16Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Svensson, GunnarNygren, Mats
By organisation
Department of Materials and Environmental Chemistry (MMK)
In the same journal
Materials research bulletin
Materials Chemistry

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 43 hits
ReferencesLink to record
Permanent link

Direct link