کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1617411 | 1005686 | 2011 | 5 صفحه PDF | دانلود رایگان |
The microwave dielectric properties of CaTiO3-added Mg2(Ti0.95Sn0.05)O4 ceramics prepared by the mixed oxide route have been investigated. The combination of spinel-structured Mg2(Ti0.95Sn0.05)O4 and perovskite-structured CaTiO3 forms a two-phase system (1 − x)Mg2(Ti0.95Sn0.05)O4–xCaTiO3, which was confirmed by the XRD patterns and the EDX analysis and it also leads to a zero τf. The microwave dielectric properties of the ceramics can be effectively controlled by varying the x value. For practical applications, a new microwave dielectric material 0.91Mg2(Ti0.95Sn0.05)O4–0.09CaTiO3 is suggested and it possesses a good combination of dielectric properties with an ɛr of ∼18.01, a Q × f of ∼92,000 GHz, and a τf of ∼0 ppm/°C, which makes it is a very promising candidate material for high frequency applications.
Journal: Journal of Alloys and Compounds - Volume 509, Issue 11, 17 March 2011, Pages 4247–4251