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Spherical shape Ba-based glass powders prepared by spray pyrolysis for MLCCs

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Abstract

Spherical shape BaO–B2O3–SiO2 glass powders were directly prepared by high temperature spray pyrolysis at >1000 °C. The thermal and morphological characteristics of the prepared glass powders were investigated. The glass powders prepared at temperature of 1000 °C had spherical shape and hollow inner structure. On the other hand, the powders prepared at high temperature of 1300 °C had complete spherical shape and dense inner structure by complete melting. The mean size of the glass powders was 0.9 μm. The glass transition temperatures (T g) of the glass powders obtained by spray pyrolysis at preparation temperatures between 1000 and 1300 °C were 601.1 °C regardless of the preparation temperatures. The specimen of the glass powders obtained by spray pyrolysis at the preparation temperature of 1300 °C had small number of voids even at low sintering temperature of 700 °C. In addition, the specimen sintered at temperature of 800 °C had dense microstructure without voids.

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Authors and Affiliations

  1. Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul, 143-701, South Korea

    Seung Kwon Hong, Dae Soo Jung & Yun Chan Kang

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  1. Seung Kwon Hong
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  2. Dae Soo Jung
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  3. Yun Chan Kang
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Correspondence to Yun Chan Kang.

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Hong, S.K., Jung, D.S. & Kang, Y.C. Spherical shape Ba-based glass powders prepared by spray pyrolysis for MLCCs. J Electroceram 23, 437–441 (2009). https://doi.org/10.1007/s10832-008-9484-4

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  • DOI: https://doi.org/10.1007/s10832-008-9484-4

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