TY - JOUR
T1 - Microwave dielectric properties of MgSn0.05Ti0.95 O3-SrTiO3 multiphase ceramics
AU - Gong, Zhijie
AU - Wang, Zhefei
AU - Wang, Lixi
AU - Han, Wei
AU - Fu, Zhenxiao
AU - Zhang, Qitu
PY - 2013/1
Y1 - 2013/1
N2 - The microwave dielectric multiphase ceramics of (1-x)MgSn0.05 Ti0.95O3-xSrTiO3 were prepared by a conventional solid-state route. The sinterability, microstructure and microwave dielectric properties of the multiphase ceramics were investigated. The results show that MgSn0.05 Ti0.95O3 and SrTiO3 can co-exist as two phases without any solid solution. The relative dielectric constant (εr) linearly increased, the quality factor (Q × f) decreased and the value of the temperature coefficient of resonance frequency (τf) varied from negative to positive with the increase of SrTiO3 content. In addition, a near-zero τf value was obtained by the adjustment of the value of x. The variation in the the value of τf of (1-x)MgSn0.05 Ti0.95 O3-xSrTiO3multiphase ceramics followed the Lichtenecker mixture rules. The multiphase ceramic 0.98MgSn0.05 Ti0.95O3-0.02SrTiO3sintered at 1330°C for 4 h had excellent microwave dielectric properties (i.e., εr=19.32, Q ×f=193.527 THz, τf=-2 ×10-6/°C).
AB - The microwave dielectric multiphase ceramics of (1-x)MgSn0.05 Ti0.95O3-xSrTiO3 were prepared by a conventional solid-state route. The sinterability, microstructure and microwave dielectric properties of the multiphase ceramics were investigated. The results show that MgSn0.05 Ti0.95O3 and SrTiO3 can co-exist as two phases without any solid solution. The relative dielectric constant (εr) linearly increased, the quality factor (Q × f) decreased and the value of the temperature coefficient of resonance frequency (τf) varied from negative to positive with the increase of SrTiO3 content. In addition, a near-zero τf value was obtained by the adjustment of the value of x. The variation in the the value of τf of (1-x)MgSn0.05 Ti0.95 O3-xSrTiO3multiphase ceramics followed the Lichtenecker mixture rules. The multiphase ceramic 0.98MgSn0.05 Ti0.95O3-0.02SrTiO3sintered at 1330°C for 4 h had excellent microwave dielectric properties (i.e., εr=19.32, Q ×f=193.527 THz, τf=-2 ×10-6/°C).
KW - Dielectric properties
KW - Microwave dielectric ceramic
KW - Multiphase ceramics
KW - Quality factor
UR - http://www.scopus.com/inward/record.url?scp=84877075146&partnerID=8YFLogxK
U2 - 10.7521/j.issn.0454-5648.2013.01.10
DO - 10.7521/j.issn.0454-5648.2013.01.10
M3 - 文章
AN - SCOPUS:84877075146
SN - 0454-5648
VL - 41
SP - 50
EP - 54
JO - Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
JF - Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
IS - 1
ER -