Low-temperature Sintering of B2O3-added Ba(Mg 1/3Nb2/3)O3 ceramics

Jong Bong Lim; Jin Ok Son; Sahn Nahm; Woo Sung Lee; Myong Jae Yoo; Nam Gi Gang; Hwack Joo Lee; Young Sik Kim

doi:10.1143/JJAP.43.5388

Low-temperature Sintering of B₂O₃-added Ba(Mg _1/3Nb_2/3)O₃ ceramics

Jong Bong Lim, Jin Ok Son, Sahn Nahm, Woo Sung Lee, Myong Jae Yoo, Nam Gi Gang, Hwack Joo Lee, Young Sik Kim

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

24 Citations (Scopus)

Abstract

The sintering temperature of Ba(Mg_1/3Nb_2/3)O ₃ (BMN) ceramic is about 1450°C. When B₂O₃ was added, BMN sintered at 900°C and it had a 1:2 ordered hexagonal structure. A liquid phase, which could be responsible for the decrease in sintering temperature, was observed in B₂O₃-added BMN. Mg₄Nb₂O₉ and Ba₂B₂O ₅ second phases were found in the specimens and the Ba ₂B₂O₅ second phase might be related to the liquid phase. The dielectric constant (ε_r) and Q value increased with increasing sintering temperature and it is due to the increase in bulk density. However, they decreased with increasing B₂O₃ content, which can be explained by the existence of the second phases. Good microwave dielectric properties of Q × f = 8500 GHz, ε_r = 27.5 and temperature coefficient of resonance frequency (τ_f) = 27.0 ppm/°C were obtained for BMN with 2.0 mol% B₂O₃ sintered at 930°C for 2 h.

Original language	English
Pages (from-to)	5388-5391
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	43
Issue number	8 A
DOIs	https://doi.org/10.1143/JJAP.43.5388
Publication status	Published - 2004 Aug

Keywords

BO LTCC microwave dielectric properties
Ba(MgNb)O

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.43.5388

Cite this

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title = "Low-temperature Sintering of B2O3-added Ba(Mg 1/3Nb2/3)O3 ceramics",

abstract = "The sintering temperature of Ba(Mg1/3Nb2/3)O 3 (BMN) ceramic is about 1450°C. When B2O3 was added, BMN sintered at 900°C and it had a 1:2 ordered hexagonal structure. A liquid phase, which could be responsible for the decrease in sintering temperature, was observed in B2O3-added BMN. Mg4Nb2O9 and Ba2B2O 5 second phases were found in the specimens and the Ba 2B2O5 second phase might be related to the liquid phase. The dielectric constant (εr) and Q value increased with increasing sintering temperature and it is due to the increase in bulk density. However, they decreased with increasing B2O3 content, which can be explained by the existence of the second phases. Good microwave dielectric properties of Q × f = 8500 GHz, εr = 27.5 and temperature coefficient of resonance frequency (τf) = 27.0 ppm/°C were obtained for BMN with 2.0 mol% B2O3 sintered at 930°C for 2 h.",

keywords = "BO LTCC microwave dielectric properties, Ba(MgNb)O",

author = "Lim, {Jong Bong} and Son, {Jin Ok} and Sahn Nahm and Lee, {Woo Sung} and Yoo, {Myong Jae} and Gang, {Nam Gi} and Lee, {Hwack Joo} and Kim, {Young Sik}",

year = "2004",

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doi = "10.1143/JJAP.43.5388",

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T1 - Low-temperature Sintering of B2O3-added Ba(Mg 1/3Nb2/3)O3 ceramics

AU - Lim, Jong Bong

AU - Son, Jin Ok

AU - Nahm, Sahn

AU - Lee, Woo Sung

AU - Yoo, Myong Jae

AU - Gang, Nam Gi

AU - Lee, Hwack Joo

AU - Kim, Young Sik

PY - 2004/8

Y1 - 2004/8

N2 - The sintering temperature of Ba(Mg1/3Nb2/3)O 3 (BMN) ceramic is about 1450°C. When B2O3 was added, BMN sintered at 900°C and it had a 1:2 ordered hexagonal structure. A liquid phase, which could be responsible for the decrease in sintering temperature, was observed in B2O3-added BMN. Mg4Nb2O9 and Ba2B2O 5 second phases were found in the specimens and the Ba 2B2O5 second phase might be related to the liquid phase. The dielectric constant (εr) and Q value increased with increasing sintering temperature and it is due to the increase in bulk density. However, they decreased with increasing B2O3 content, which can be explained by the existence of the second phases. Good microwave dielectric properties of Q × f = 8500 GHz, εr = 27.5 and temperature coefficient of resonance frequency (τf) = 27.0 ppm/°C were obtained for BMN with 2.0 mol% B2O3 sintered at 930°C for 2 h.

AB - The sintering temperature of Ba(Mg1/3Nb2/3)O 3 (BMN) ceramic is about 1450°C. When B2O3 was added, BMN sintered at 900°C and it had a 1:2 ordered hexagonal structure. A liquid phase, which could be responsible for the decrease in sintering temperature, was observed in B2O3-added BMN. Mg4Nb2O9 and Ba2B2O 5 second phases were found in the specimens and the Ba 2B2O5 second phase might be related to the liquid phase. The dielectric constant (εr) and Q value increased with increasing sintering temperature and it is due to the increase in bulk density. However, they decreased with increasing B2O3 content, which can be explained by the existence of the second phases. Good microwave dielectric properties of Q × f = 8500 GHz, εr = 27.5 and temperature coefficient of resonance frequency (τf) = 27.0 ppm/°C were obtained for BMN with 2.0 mol% B2O3 sintered at 930°C for 2 h.

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