Effect of eutectic lithium sulfate-sodium sulfate flux on the synthesis of lead magnesium niobate

K. H. Yoon; Y. S. Cho; D. H. Kang; K. Uchino; K. Y. Oh

doi:10.1080/00150199408222462

Effect of eutectic lithium sulfate-sodium sulfate flux on the synthesis of lead magnesium niobate

K. H. Yoon, Y. S. Cho, D. H. Kang, K. Uchino, K. Y. Oh

Department of Materials Science and Engineering

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

3 Citations (Scopus)

Abstract

The effect of the amount of sulfate flux (Li2S04-Na2S04) on the phase stability and dielectric properties of lead magnesium niobate ceramics prepared by molten salt synthesis, has been studied as a function of calcining and sintering temperatures. The percentage of perovskite phase tended to increase with increasing the amount of flux and calcination temperature. When powders containing the same amount of flux with respect to starting oxides were calcined at 750°C for 2 h, the pyrochlore phase was about 2%. Above 800°C, the perovskite phase was stable at about 97% regardless of the amount of flux. However, the increase of the amount of sulfate flux resulted in an increase of the average particle size and a decrease of dielectric constant. These results can be explained by the sinterability and micro-structure analysis.

Original language	English
Pages (from-to)	255-264
Number of pages	10
Journal	Ferroelectrics
Volume	160
Issue number	1
DOIs	https://doi.org/10.1080/00150199408222462
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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10.1080/00150199408222462

Cite this

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title = "Effect of eutectic lithium sulfate-sodium sulfate flux on the synthesis of lead magnesium niobate",

abstract = "The effect of the amount of sulfate flux (Li2S04-Na2S04) on the phase stability and dielectric properties of lead magnesium niobate ceramics prepared by molten salt synthesis, has been studied as a function of calcining and sintering temperatures. The percentage of perovskite phase tended to increase with increasing the amount of flux and calcination temperature. When powders containing the same amount of flux with respect to starting oxides were calcined at 750°C for 2 h, the pyrochlore phase was about 2%. Above 800°C, the perovskite phase was stable at about 97% regardless of the amount of flux. However, the increase of the amount of sulfate flux resulted in an increase of the average particle size and a decrease of dielectric constant. These results can be explained by the sinterability and micro-structure analysis.",

author = "Yoon, {K. H.} and Cho, {Y. S.} and Kang, {D. H.} and K. Uchino and Oh, {K. Y.}",

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

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T1 - Effect of eutectic lithium sulfate-sodium sulfate flux on the synthesis of lead magnesium niobate

AU - Yoon, K. H.

AU - Cho, Y. S.

AU - Kang, D. H.

AU - Uchino, K.

AU - Oh, K. Y.

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

PY - 1994/10

Y1 - 1994/10

N2 - The effect of the amount of sulfate flux (Li2S04-Na2S04) on the phase stability and dielectric properties of lead magnesium niobate ceramics prepared by molten salt synthesis, has been studied as a function of calcining and sintering temperatures. The percentage of perovskite phase tended to increase with increasing the amount of flux and calcination temperature. When powders containing the same amount of flux with respect to starting oxides were calcined at 750°C for 2 h, the pyrochlore phase was about 2%. Above 800°C, the perovskite phase was stable at about 97% regardless of the amount of flux. However, the increase of the amount of sulfate flux resulted in an increase of the average particle size and a decrease of dielectric constant. These results can be explained by the sinterability and micro-structure analysis.

AB - The effect of the amount of sulfate flux (Li2S04-Na2S04) on the phase stability and dielectric properties of lead magnesium niobate ceramics prepared by molten salt synthesis, has been studied as a function of calcining and sintering temperatures. The percentage of perovskite phase tended to increase with increasing the amount of flux and calcination temperature. When powders containing the same amount of flux with respect to starting oxides were calcined at 750°C for 2 h, the pyrochlore phase was about 2%. Above 800°C, the perovskite phase was stable at about 97% regardless of the amount of flux. However, the increase of the amount of sulfate flux resulted in an increase of the average particle size and a decrease of dielectric constant. These results can be explained by the sinterability and micro-structure analysis.

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Effect of eutectic lithium sulfate-sodium sulfate flux on the synthesis of lead magnesium niobate

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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