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High Performance BaTiO3‐Based BMEMLCC Nanopowder Prepared by Aqueous Chemical Coating Method

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Dispersion plays an important role in aqueous chemical coating process for the preparation of BaTiO3‐based powder for base‐metal‐electrode multilayer ceramic capacitors (BMEMLCCs) in our previous research. In this article, a powerful sand mill (SC‐milling) machine is utilized instead of traditional ball milling to produce BaTiO3 MLCC nanopowder, in which small ZrO2 beads help to achieve high centrifugal accelerations and avoid BaTiO3 agglomerates. As much as 1 kg BaTiO3 nanopowder has been effectively dispersed very well in one time, then a uniform coating of additives on BT nanoparticles has been achieved by aqueous chemical coating method. High performance X7R BaTiO3 nanoceramics with the average grain size of about 96 nm are obtained. The experimental result indicates that this technology can be feasible to the industry for manufacturing next generation BMEMLCCs.

Document Type: Research Article


Publication date: 2012-05-01

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