Microstructure and dielectric properties of pmn prepared by molten salt synthesis

Ki Hyun Yoon; Yong Soo Cho; Dong Heon Kang

doi:10.1080/00150199408007698

Microstructure and dielectric properties of pmn prepared by molten salt synthesis

Ki Hyun Yoon, Yong Soo Cho, Dong Heon Kang

Department of Materials Science and Engineering

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

4 Citations (Scopus)

Abstract

Lead magnesium niobate Pb(Mg1/3Nb2/3)03 was prepared by molten salt synthesis using 0.635Li2SO4-0.365Na,SO4 and the effects of PbO on the microstructure and dielectric properties of the resulting specimens have been investigated. At a temperature of 750°C, about 98% of the perovskite phase was synthesized. With the addition of excess PbO up to 3 mol%, the relative density and the dielectric constant for the specimens sintered at 900°C were about 97% and 15,000 at 1 kHz, respectively. Further additions of excess PbO resulted in lower densities and inferior dielectric constant, mainly due to the formation of a PbO rich phase in the grain boundaries.

Original language	English
Pages (from-to)	89-99
Number of pages	11
Journal	Ferroelectrics
Volume	160
Issue number	1
DOIs	https://doi.org/10.1080/00150199408007698
Publication status	Published - 1994 Oct

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/00150199408007698

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abstract = "Lead magnesium niobate Pb(Mg1/3Nb2/3)03 was prepared by molten salt synthesis using 0.635Li2SO4-0.365Na,SO4 and the effects of PbO on the microstructure and dielectric properties of the resulting specimens have been investigated. At a temperature of 750°C, about 98% of the perovskite phase was synthesized. With the addition of excess PbO up to 3 mol%, the relative density and the dielectric constant for the specimens sintered at 900°C were about 97% and 15,000 at 1 kHz, respectively. Further additions of excess PbO resulted in lower densities and inferior dielectric constant, mainly due to the formation of a PbO rich phase in the grain boundaries.",

author = "Yoon, {Ki Hyun} and Cho, {Yong Soo} and Kang, {Dong Heon}",

note = "Funding Information: This work was supported by the Korea Science and Engineering Foundation",

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AU - Yoon, Ki Hyun

AU - Cho, Yong Soo

AU - Kang, Dong Heon

N1 - Funding Information: This work was supported by the Korea Science and Engineering Foundation

PY - 1994/10

Y1 - 1994/10

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AB - Lead magnesium niobate Pb(Mg1/3Nb2/3)03 was prepared by molten salt synthesis using 0.635Li2SO4-0.365Na,SO4 and the effects of PbO on the microstructure and dielectric properties of the resulting specimens have been investigated. At a temperature of 750°C, about 98% of the perovskite phase was synthesized. With the addition of excess PbO up to 3 mol%, the relative density and the dielectric constant for the specimens sintered at 900°C were about 97% and 15,000 at 1 kHz, respectively. Further additions of excess PbO resulted in lower densities and inferior dielectric constant, mainly due to the formation of a PbO rich phase in the grain boundaries.

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Microstructure and dielectric properties of pmn prepared by molten salt synthesis

Abstract

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