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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/42021


    Title: Dispersion of nano-sized BaTiO3 powders in nonaqueous suspension with phosphate ester and their applications for MLCC
    Authors: Chu, Li-wen;Prakash, Kuraganti Niranjan;Tsai, Men-tsuan;林諭男;Lin, I-nan
    Contributors: 淡江大學物理學系
    Keywords: Suspensions;Tape-casting;Nanocomposites;BaTiO3;Capacitors
    Date: 2008
    Issue Date: 2010-02-23 14:13:37 (UTC+8)
    Publisher: Elsevier
    Abstract: The stability of nano-sized BaTiO3 nonaqueous suspension with different phosphate ester surfactants was investigated. Among the three phosphate esters (mono-alkyl, di-alkyl and ethoxy types), the 2-ethoxy ethyl dihydrogen (1EO-) phosphate esters show not only better coverage over the nano-BaTiO3 powders, but also superior dispersion for the suspension. Contrary to the conventional 200 nm-BaTiO3 suspensions, which need longer carbon-chain phosphate esters surfactant for dispersing the BaTiO3 powders, the 50 nm-BaTiO3 suspensions require shorter carbon-chain phosphate esters surfactant for dispersing them. Multilayer ceramic capacitors (MLCC) made of 50 nm-BaTiO3 suspensions contain ultra-thin ceramic layer (2.6–2.8 μm), which shows the larger capacitance and superior breakdown voltage than those made of 200 nm-BaTiO3 powders.
    Relation: Journal of the European Ceramic Society 28(6), pp.1205-1212
    DOI: 10.1016/j.jeurceramsoc.2007.10.015
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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