多相材料的微結構設計(III)奈米鈦酸鋇多相材料
Date Issued
2004
Date
2004
Author(s)
DOI
922216E002029
Abstract
Nickel is now used as the internal
electrode for the multilayer ceramic
capacitors (MLCCs). In order to increase
its volume efficiency, the size of Ni
particles decreases from micrometer-sized
range to nanometer-sized range. In the
present study, nano-sized Ni particles are
mixed intimately with BaTiO3 powder.
The powder compacts are then co-fired in
an atmosphere with low oxygen partial
pressure. The sintering behavior of the Nidoped
BaTiO3 is investigated. The
presence of the nanometer-sized Ni
inclusions can inhibit the grain growth of
BaTiO3. The solubility of Ni in BaTiO3
during co-firing is also determined. Two
techniques have been applied to determine
the solubility. Consistent results are
obtained. The solubility of the Ni in the
BaTiO3 is around 1000±100 ppm after cofiring
at 1330°C for 2 h in N2.
Publisher
臺北市：國立臺灣大學材料科學與工程學研究所
Type
report
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