The modification of surface, size and shape of barium zirconate powder via salt flux

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dc.contributor.authorCharoonsuk, Thitirat
dc.contributor.authorKolodiazhnyi, Taras
dc.contributor.authorVittayakorn, Naratip
dc.date.accessioned2026-08-06T10:23:34Z
dc.date.available2026-08-06T10:23:34Z
dc.date.issued2019-01-01
dc.description.abstractThe “top-down” process via direct conversion of the micro (μm)-to-submicroscale (sub-μm) particle was applied in this work by using eutectic chloride salts to prepare BaZrO<inf>3</inf>. The particle size at optimum condition could be decreased by more than 10 times from 2.1 ± 0.9 μm to 168 ± 23 nm without destroying the 1:1 of Ba:Zr stoichiometry. The uniform sub-μm-BaZrO<inf>3</inf> powder was sintered in order to obtain ~98% dense ceramic at 1400°C/10 h, which is significantly lower than the 1650°C in normal cases. The microwave dielectric constant, tan δ, and quality factor were also determined. Furthermore, this method also was applied to lead-free piezoelectric material in the 0.87BaTiO<inf>3</inf>–0.13BaZrO<inf>3</inf>–CaTiO<inf>3</inf>(0.87BT–0.13BZ–CT) system. The particle size of 0.87BT–0.13BZ–CT was reduced greatly from >10 µm to 2.8 ± 0.4 µm. It can be proved that salt flux dissolution method enables high-purity with uniform sub-micro/nanometer powder production in one step by using simple laboratory equipment and low-cost raw materials.
dc.identifier.citationJournal of the American Ceramic Society, 102(10), 5772-5785, 2019
dc.identifier.doi10.1111/jace.16495
dc.identifier.issn00027820
dc.identifier.other2-s2.0-85065244684
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/9598
dc.sourceJournal of the American Ceramic Society
dc.subjectBaZrO3
dc.subjectmicrowave dielectric ceramic
dc.subjectnanoparticles
dc.subjectsalt-flux dissolution
dc.titleThe modification of surface, size and shape of barium zirconate powder via salt flux
dc.typeArticle

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