Effect of Li2CO3 addition on the sintering temperature and microwave dielectric properties of Mg2V 2O7 ceramics

Mi Ri Joung; Jin Seong Kim; Myung Eun Song; Jae Hong Choi; Jong Woo Sun; Sahn Nahm; Jong Hoo Paik; Byung Hyun Choi

doi:10.1111/j.1551-2916.2009.03179.x

Effect of Li₂CO₃ addition on the sintering temperature and microwave dielectric properties of Mg₂V ₂O₇ ceramics

Mi Ri Joung, Jin Seong Kim, Myung Eun Song, Jae Hong Choi, Jong Woo Sun, Sahn Nahm, Jong Hoo Paik, Byung Hyun Choi

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

19 Citations (Scopus)

Abstract

Li₂CO₃ was added to Mg₂V₂O ₇ ceramics in order to reduce the sintering temperature to below 900°C. At temperatures below 900°C, a liquid phase was formed during sintering, which assisted the densification of the specimens. The addition of Li₂CO₃ changed the crystal structure of Mg ₂V₂O₇ ceramics from triclinic to monoclinic. The 6.0 mol% Li₂CO₃-added Mg₂V ₂O₇ ceramic was well sintered at 800°C with a high density and good microwave dielectric properties of ε_r=8.2, Q × f=70 621 GHz, and τ_f=-35.2 ppm/°C. Silver did not react with the 6.0 mol% Li₂CO₃-added Mg₂V ₂O₇ ceramic at 800°C. Therefore, this ceramic is a good candidate material in low-temperature co-fired ceramic multilayer devices.

Original language	English
Pages (from-to)	2151-2154
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	92
Issue number	9
DOIs	https://doi.org/10.1111/j.1551-2916.2009.03179.x
Publication status	Published - 2009 Sept

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1111/j.1551-2916.2009.03179.x

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title = "Effect of Li2CO3 addition on the sintering temperature and microwave dielectric properties of Mg2V 2O7 ceramics",

abstract = "Li2CO3 was added to Mg2V2O 7 ceramics in order to reduce the sintering temperature to below 900°C. At temperatures below 900°C, a liquid phase was formed during sintering, which assisted the densification of the specimens. The addition of Li2CO3 changed the crystal structure of Mg 2V2O7 ceramics from triclinic to monoclinic. The 6.0 mol% Li2CO3-added Mg2V 2O7 ceramic was well sintered at 800°C with a high density and good microwave dielectric properties of εr=8.2, Q × f=70 621 GHz, and τf=-35.2 ppm/°C. Silver did not react with the 6.0 mol% Li2CO3-added Mg2V 2O7 ceramic at 800°C. Therefore, this ceramic is a good candidate material in low-temperature co-fired ceramic multilayer devices.",

author = "Joung, {Mi Ri} and Kim, {Jin Seong} and Song, {Myung Eun} and Choi, {Jae Hong} and Sun, {Jong Woo} and Sahn Nahm and Paik, {Jong Hoo} and Choi, {Byung Hyun}",

year = "2009",

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doi = "10.1111/j.1551-2916.2009.03179.x",

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T1 - Effect of Li2CO3 addition on the sintering temperature and microwave dielectric properties of Mg2V 2O7 ceramics

AU - Joung, Mi Ri

AU - Kim, Jin Seong

AU - Song, Myung Eun

AU - Choi, Jae Hong

AU - Sun, Jong Woo

AU - Nahm, Sahn

AU - Paik, Jong Hoo

AU - Choi, Byung Hyun

PY - 2009/9

Y1 - 2009/9

N2 - Li2CO3 was added to Mg2V2O 7 ceramics in order to reduce the sintering temperature to below 900°C. At temperatures below 900°C, a liquid phase was formed during sintering, which assisted the densification of the specimens. The addition of Li2CO3 changed the crystal structure of Mg 2V2O7 ceramics from triclinic to monoclinic. The 6.0 mol% Li2CO3-added Mg2V 2O7 ceramic was well sintered at 800°C with a high density and good microwave dielectric properties of εr=8.2, Q × f=70 621 GHz, and τf=-35.2 ppm/°C. Silver did not react with the 6.0 mol% Li2CO3-added Mg2V 2O7 ceramic at 800°C. Therefore, this ceramic is a good candidate material in low-temperature co-fired ceramic multilayer devices.

AB - Li2CO3 was added to Mg2V2O 7 ceramics in order to reduce the sintering temperature to below 900°C. At temperatures below 900°C, a liquid phase was formed during sintering, which assisted the densification of the specimens. The addition of Li2CO3 changed the crystal structure of Mg 2V2O7 ceramics from triclinic to monoclinic. The 6.0 mol% Li2CO3-added Mg2V 2O7 ceramic was well sintered at 800°C with a high density and good microwave dielectric properties of εr=8.2, Q × f=70 621 GHz, and τf=-35.2 ppm/°C. Silver did not react with the 6.0 mol% Li2CO3-added Mg2V 2O7 ceramic at 800°C. Therefore, this ceramic is a good candidate material in low-temperature co-fired ceramic multilayer devices.

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JO - Journal of the American Ceramic Society

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Effect of Li₂CO₃ addition on the sintering temperature and microwave dielectric properties of Mg₂V ₂O₇ ceramics

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