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RESEARCH PRODUCT

BST ceramics: Effect of attrition milling on dielectric properties

Mario MaglioneA. MorellS. Tusseau-nenezMichel PateJean-pierre GanneJean-claude Niepce

subject

PermittivityMaterials scienceMineralogy02 engineering and technologyDielectric01 natural sciencesCondensed Matter::Materials ScienceCondensed Matter::Superconductivity0103 physical sciencesMaterials ChemistryCeramicComposite materialBSTMillingYttria-stabilized zirconia010302 applied physicsSr) TiO3[CHIM.MATE]Chemical Sciences/Material chemistry021001 nanoscience & nanotechnologyMicrostructureGrain sizeGrain size[ CHIM.MATE ] Chemical Sciences/Material chemistryDielectric propertiesvisual_artCeramics and Compositesvisual_art.visual_art_mediumDissipation factor(BaParticle size0210 nano-technology

description

Abstract The effect of grain size on the dielectric properties of Ba0.6Sr0.4TiO3 (BST) ceramics is investigated. Attrition milling is chosen to obtain nanometre particle size from micrometre particle size powders. Fine grained ceramics are obtained by hot uniaxial pressing (HUP). Additionally, the present study is focused on the effect of the nature of milling balls on loss tangent and permittivity. For that, three kinds of balls are tested: calcia, yttria or ceria stabilised zirconia balls. The properties of these samples are evaluated in the range of MHz. The balls induce an involuntary doping of powders which modifies the dielectric properties, especially the Curie temperature and loss tangent.

yearjournalcountryeditionlanguage
2004-09-01Journal of the European Ceramic Society
https://doi.org/10.1016/j.jeurceramsoc.2003.11.019