TY - JOUR
T1 - Crystalline structure and dielectric properties of Li1+x-yNb1-x-3yTix+4yO3 M-phase solid solutions
AU - Borisevich, Albina Y.
AU - Davies, Peter K.
PY - 2002/3
Y1 - 2002/3
N2 - The structure and dielectric properties of the so-called M-phase solid solutions in the Li2O-Nb2O5-TiO2 system have been investigated. Detailed studies of the lattice parameters of these phases agree well with structure models based on intergrowths of LiNbO3 slabs with a titanium-rich corundum-type layer. The relative permittivity ranges from ∼80 to ∼55; microwave quality factors increase with the titanium content, reaching values of Q×f = 9000 at 6 GHz. The temperature coefficient of the resonant frequency changes sign within the solid solution region, thus permitting tunability to a zero value. All the compositions can be sintered to high density at temperatures ≤1100°C.
AB - The structure and dielectric properties of the so-called M-phase solid solutions in the Li2O-Nb2O5-TiO2 system have been investigated. Detailed studies of the lattice parameters of these phases agree well with structure models based on intergrowths of LiNbO3 slabs with a titanium-rich corundum-type layer. The relative permittivity ranges from ∼80 to ∼55; microwave quality factors increase with the titanium content, reaching values of Q×f = 9000 at 6 GHz. The temperature coefficient of the resonant frequency changes sign within the solid solution region, thus permitting tunability to a zero value. All the compositions can be sintered to high density at temperatures ≤1100°C.
UR - http://www.scopus.com/inward/record.url?scp=0036510706&partnerID=8YFLogxK
U2 - 10.1111/j.1151-2916.2002.tb00134.x
DO - 10.1111/j.1151-2916.2002.tb00134.x
M3 - Article
AN - SCOPUS:0036510706
SN - 0002-7820
VL - 85
SP - 573
EP - 578
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 3
ER -