Microwave dielectric properties and chemical resistance of low-temperature-sintered CaZrB2O6 ceramics

Hyo Tae Kim; Myoung Hwa Nam; Jong Hee Kim; Sahn Nahm

doi:10.1111/j.1744-7402.2009.02381.x

Microwave dielectric properties and chemical resistance of low-temperature-sintered CaZrB₂O₆ ceramics

Hyo Tae Kim, Myoung Hwa Nam, Jong Hee Kim, Sahn Nahm

Department of Materials Science and Engineering

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

4 Citations (Scopus)

Abstract

Dolomite-type borate ceramics consisting of CaZrB₂ O₆ were synthesized via a conventional solid-state reaction route; low-temperature sintering was explored using Bi₂ O₃-CuO additives of 1-7wt% for low-temperature co-fired ceramics applications. For several sintering temperatures, the microwave dielectric properties and chemical resistance of the ceramics were investigated. The CaZrB₂O₆ ceramics with 3wt% Bi₂O₃-CuO addition could be sintered below 925°C, and the microwave dielectric properties of the low-temperature samples were ε_r = 10.55, Q × f = 87,350GHz, and τ_f = + 2 ppm/°C. The chemical resistance test result showed that both CaZrB₂O₆- and Bi₂O₃-CuO-added CaZrB₂O₆ ceramics were durable in basic solution but were degraded in acid solution.

Original language	English
Pages (from-to)	587-592
Number of pages	6
Journal	International Journal of Applied Ceramic Technology
Volume	6
Issue number	5
DOIs	https://doi.org/10.1111/j.1744-7402.2009.02381.x
Publication status	Published - 2009

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Marketing
Materials Chemistry

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title = "Microwave dielectric properties and chemical resistance of low-temperature-sintered CaZrB2O6 ceramics",

abstract = "Dolomite-type borate ceramics consisting of CaZrB2 O6 were synthesized via a conventional solid-state reaction route; low-temperature sintering was explored using Bi2 O3-CuO additives of 1-7wt% for low-temperature co-fired ceramics applications. For several sintering temperatures, the microwave dielectric properties and chemical resistance of the ceramics were investigated. The CaZrB2O6 ceramics with 3wt% Bi2O3-CuO addition could be sintered below 925°C, and the microwave dielectric properties of the low-temperature samples were εr = 10.55, Q × f = 87,350GHz, and τf = + 2 ppm/°C. The chemical resistance test result showed that both CaZrB2O6- and Bi2O3-CuO-added CaZrB2O6 ceramics were durable in basic solution but were degraded in acid solution.",

author = "Kim, {Hyo Tae} and Nam, {Myoung Hwa} and Kim, {Jong Hee} and Sahn Nahm",

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AU - Nahm, Sahn

PY - 2009

Y1 - 2009

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