Influence of sintering on microstructure and electrical properties of ZnO-based multilayer varistor (MLV)

W. S. Lee; W. T. Chen; Y. C. Lee; Tony Yang; C. Y. Su; C. L. Hu

doi:10.1016/j.ceramint.2006.02.017

Influence of sintering on microstructure and electrical properties of ZnO-based multilayer varistor (MLV)

W. S. Lee, W. T. Chen, Y. C. Lee, Tony Yang, C. Y. Su, C. L. Hu

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The effect of sintering on microstructure, dielectric property and varistor property of ZnO-based multilayer varistor (MLV) were investigated. The results show that an optimum microstructure of ZnO-based MLV can be obtained when sintering at 950 °C/1.5 h. The reaction between ZnO and Sb₂O₃ is noted. Also, the segregation of Bi₂O₃ to the inner electrode and thus the reaction of Bi₂O₃ with Pd are observed. The V_B and α value of ZnO-based MLV can be controlled in a straightforward manner through the control of grain size. The decrease in V_B directly relates to the grain growth of ZnO grains when increasing the sintering temperatures from 900 to 1050 °C. Moreover, the increase of capacitance with sintering temperature may mainly result from the coalescence of ZnO matrix grains. The energy absorption capabilities in terms of electro-static discharge (ESD) and peak current (PC) measurements of ZnO-based MLV are reported. The optimum varistor properties of ZnO-based MLV can be obtained when sintering at 950 °C.

Original language	English
Pages (from-to)	1001-1005
Number of pages	5
Journal	Ceramics International
Volume	33
Issue number	6
DOIs	https://doi.org/10.1016/j.ceramint.2006.02.017
Publication status	Published - 2007 Aug

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.ceramint.2006.02.017

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title = "Influence of sintering on microstructure and electrical properties of ZnO-based multilayer varistor (MLV)",

abstract = "The effect of sintering on microstructure, dielectric property and varistor property of ZnO-based multilayer varistor (MLV) were investigated. The results show that an optimum microstructure of ZnO-based MLV can be obtained when sintering at 950 °C/1.5 h. The reaction between ZnO and Sb2O3 is noted. Also, the segregation of Bi2O3 to the inner electrode and thus the reaction of Bi2O3 with Pd are observed. The VB and α value of ZnO-based MLV can be controlled in a straightforward manner through the control of grain size. The decrease in VB directly relates to the grain growth of ZnO grains when increasing the sintering temperatures from 900 to 1050 °C. Moreover, the increase of capacitance with sintering temperature may mainly result from the coalescence of ZnO matrix grains. The energy absorption capabilities in terms of electro-static discharge (ESD) and peak current (PC) measurements of ZnO-based MLV are reported. The optimum varistor properties of ZnO-based MLV can be obtained when sintering at 950 °C.",

author = "Lee, {W. S.} and Chen, {W. T.} and Lee, {Y. C.} and Tony Yang and Su, {C. Y.} and Hu, {C. L.}",

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AU - Lee, W. S.

AU - Chen, W. T.

AU - Lee, Y. C.

AU - Yang, Tony

AU - Su, C. Y.

AU - Hu, C. L.

PY - 2007/8

Y1 - 2007/8

N2 - The effect of sintering on microstructure, dielectric property and varistor property of ZnO-based multilayer varistor (MLV) were investigated. The results show that an optimum microstructure of ZnO-based MLV can be obtained when sintering at 950 °C/1.5 h. The reaction between ZnO and Sb2O3 is noted. Also, the segregation of Bi2O3 to the inner electrode and thus the reaction of Bi2O3 with Pd are observed. The VB and α value of ZnO-based MLV can be controlled in a straightforward manner through the control of grain size. The decrease in VB directly relates to the grain growth of ZnO grains when increasing the sintering temperatures from 900 to 1050 °C. Moreover, the increase of capacitance with sintering temperature may mainly result from the coalescence of ZnO matrix grains. The energy absorption capabilities in terms of electro-static discharge (ESD) and peak current (PC) measurements of ZnO-based MLV are reported. The optimum varistor properties of ZnO-based MLV can be obtained when sintering at 950 °C.

AB - The effect of sintering on microstructure, dielectric property and varistor property of ZnO-based multilayer varistor (MLV) were investigated. The results show that an optimum microstructure of ZnO-based MLV can be obtained when sintering at 950 °C/1.5 h. The reaction between ZnO and Sb2O3 is noted. Also, the segregation of Bi2O3 to the inner electrode and thus the reaction of Bi2O3 with Pd are observed. The VB and α value of ZnO-based MLV can be controlled in a straightforward manner through the control of grain size. The decrease in VB directly relates to the grain growth of ZnO grains when increasing the sintering temperatures from 900 to 1050 °C. Moreover, the increase of capacitance with sintering temperature may mainly result from the coalescence of ZnO matrix grains. The energy absorption capabilities in terms of electro-static discharge (ESD) and peak current (PC) measurements of ZnO-based MLV are reported. The optimum varistor properties of ZnO-based MLV can be obtained when sintering at 950 °C.

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Influence of sintering on microstructure and electrical properties of ZnO-based multilayer varistor (MLV)

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