Impedance study of the microstructure dependence of the electrical properties of BIMEVOXes

Sintering conditions were determined for several BIMEVOX compounds. They are a function of the dopant and a careful investigation must be performed for each dopant. BIMEVOXes can be divided into two main groups: MEII doped BIMEVOXes such as Co, Cu, Ni, Zn and those doped with higher valence elements, MeV in particular such as Ta, Nb, Sn. The first group is characterised by low melting point and can be sintered at 750°C. In contrast, high melting point are observed for MeV doped compounds which must be sintered above 850°C. Relative density higher than 95% were obtained in all cases. Impedance spectroscopy revealed the electrical properties of a ceramic can be strongly dependant on its microstructure. Indeed, at low temperature, in the case of BICUVOX.10, lower conductivity was observed for sample with large grains.

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Source ISSN: 0167-2738
Author Pirovano, Caroline, César Steil, Marlu, Capoen, Edouard, Nowogrocki, Guy, Vannier, Rose-Noëlle
Maintainer CCSD
Last Updated May 10, 2026, 22:41 (UTC)
Created May 10, 2026, 22:41 (UTC)
Identifier hal-00082476
Language en
contributor Laboratoire de cristallochimie et physicochimie du solide (LCPS) ; Université de Lille, Sciences et Technologies-Centre National de la Recherche Scientifique (CNRS)
creator Pirovano, Caroline
date 2005-05-10T00:00:00
harvest_object_id 1d609144-bac8-46d0-940d-b7693a4ce265
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2026-04-11T00:00:00
relation info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ssi.2004.06.026
set_spec type:ART