Dielectric properties of (Ba,Ca)(Ti,Zr)O3 based MLCC novel cofired with Ni by free and constrained sintering

Wen-Shi Lee, Shih Hao Wang

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

In this paper, the (Ba,Ca)(Ti,Zr)-MLCCs with nickel electrodes by free sintering and constrained sintering as different heating rate have been investigated as different heating rate with 200°C/hr, 1500°C/hr and 3000°C/hr, respectively. The BaTiO3 was adopted as constraining layer due to the tensile stress of generation resulted from the different onset temperature. The electrical characteristics were closely related to the microstructure change including electrode overlap areas and grain size by free and constrained sintering with different heating rate. The variation of dielectric constant and insulation resistance can be explained by grain size change. The variation of dielectric loss can be explained by the curve of the temperature coefficient of capacitance. To compare with the free sintering, the capacitance value of constrained sintering of MLCCs has increased regardless of the heating rates. The high capacitance, high electrode continuity (>98%) and high insulation resistance (>1010Ω) of BCTZ-based MLCC with nickel electrode can be attained by using a rapid constrained sintering technique.

Original languageEnglish
Pages (from-to)128-136
Number of pages9
JournalFerroelectrics
Volume434
Issue number1
DOIs
Publication statusPublished - 2012 Jan 1
Event7th International Conference on Microwave Materials and Their Applications, MMA 2012 - Taipei, Taiwan
Duration: 2012 Jun 32012 Jun 6

Fingerprint

Dielectric properties
dielectric properties
sintering
Sintering
Heating rate
Electrodes
heating
Capacitance
electrodes
capacitance
Nickel
insulation
Insulation
grain size
nickel
Dielectric losses
tensile stress
dielectric loss
continuity
Tensile stress

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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title = "Dielectric properties of (Ba,Ca)(Ti,Zr)O3 based MLCC novel cofired with Ni by free and constrained sintering",
abstract = "In this paper, the (Ba,Ca)(Ti,Zr)-MLCCs with nickel electrodes by free sintering and constrained sintering as different heating rate have been investigated as different heating rate with 200°C/hr, 1500°C/hr and 3000°C/hr, respectively. The BaTiO3 was adopted as constraining layer due to the tensile stress of generation resulted from the different onset temperature. The electrical characteristics were closely related to the microstructure change including electrode overlap areas and grain size by free and constrained sintering with different heating rate. The variation of dielectric constant and insulation resistance can be explained by grain size change. The variation of dielectric loss can be explained by the curve of the temperature coefficient of capacitance. To compare with the free sintering, the capacitance value of constrained sintering of MLCCs has increased regardless of the heating rates. The high capacitance, high electrode continuity (>98{\%}) and high insulation resistance (>1010Ω) of BCTZ-based MLCC with nickel electrode can be attained by using a rapid constrained sintering technique.",
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Dielectric properties of (Ba,Ca)(Ti,Zr)O3 based MLCC novel cofired with Ni by free and constrained sintering. / Lee, Wen-Shi; Wang, Shih Hao.

In: Ferroelectrics, Vol. 434, No. 1, 01.01.2012, p. 128-136.

Research output: Contribution to journalConference article

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AB - In this paper, the (Ba,Ca)(Ti,Zr)-MLCCs with nickel electrodes by free sintering and constrained sintering as different heating rate have been investigated as different heating rate with 200°C/hr, 1500°C/hr and 3000°C/hr, respectively. The BaTiO3 was adopted as constraining layer due to the tensile stress of generation resulted from the different onset temperature. The electrical characteristics were closely related to the microstructure change including electrode overlap areas and grain size by free and constrained sintering with different heating rate. The variation of dielectric constant and insulation resistance can be explained by grain size change. The variation of dielectric loss can be explained by the curve of the temperature coefficient of capacitance. To compare with the free sintering, the capacitance value of constrained sintering of MLCCs has increased regardless of the heating rates. The high capacitance, high electrode continuity (>98%) and high insulation resistance (>1010Ω) of BCTZ-based MLCC with nickel electrode can be attained by using a rapid constrained sintering technique.

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