TY - JOUR
T1 - Effect of Zn/Si ratio on the microstructural and microwave dielectric properties of Zn2SiO4 ceramics
AU - Nguyen, Ngoc Huan
AU - Lim, Jong Bong
AU - Nahm, Sahn
AU - Paik, Jong Hoo
AU - Kim, Jong Hee
PY - 2007/10
Y1 - 2007/10
N2 - Zn2SiO4 ceramics synthesized by the conventional solid-state method exhibited a low Q × f value, possibly due to the formation of a ZnO second phase. However, with a small ZnO reduction from the Zn2SiO4 ceramics, the ZnO second phase disappeared and grain growth occurred due to the formation of a Si-rich liquid phase. Specimens with a large grain size exhibited an improved Q × f value. In particular, the ceramics with nominal composition Zn1.8SiO3.8 sintered at 1300°C exhibited improved microwave dielectric properties of εr=6.6, Q × f=147 000 GHz, and τf=-22 ppm/°C.
AB - Zn2SiO4 ceramics synthesized by the conventional solid-state method exhibited a low Q × f value, possibly due to the formation of a ZnO second phase. However, with a small ZnO reduction from the Zn2SiO4 ceramics, the ZnO second phase disappeared and grain growth occurred due to the formation of a Si-rich liquid phase. Specimens with a large grain size exhibited an improved Q × f value. In particular, the ceramics with nominal composition Zn1.8SiO3.8 sintered at 1300°C exhibited improved microwave dielectric properties of εr=6.6, Q × f=147 000 GHz, and τf=-22 ppm/°C.
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U2 - 10.1111/j.1551-2916.2007.01891.x
DO - 10.1111/j.1551-2916.2007.01891.x
M3 - Article
AN - SCOPUS:34548819642
SN - 0002-7820
VL - 90
SP - 3127
EP - 3130
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 10
ER -