Microwave dielectric properties of Ba(Mg1/3Ta((2-2x))(/3)Wx/3Tix/3)O-3 ceramics

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Title:	Microwave dielectric properties of Ba(Mg1/3Ta((2-2x))(/3)Wx/3Tix/3)O-3 ceramics
Authors:	Surendran, K P Mohanan, P Sebastian, M T
Keywords:	Ceramics X-ray diffraction Crystal structure Dielectric properties Complex permittivity Temperature Resonators Perovskite
Issue Date:	2006
Publisher:	Elsevier
Citation:	Materials Research Bulletin 41(4):784-790;13 Apr 2006
Abstract:	The microwave dielectric properties of ceramics based on Ba(Mg1/3Ta(2-2x)/3Wx/3Tix/3)O-3 is investigated as a function of x. The densification as well as dielectric properties deteriorate with increase in the substitution levels of (Ti1/3W1/3)(3.33+) at (Ta-2/3)(3.33+) site in Ba(Mg1/3Ta2/3)O-3. The iota(f) is approaching zero betweenx = 0.1 and 0. 15 in Ba(Mg(1/3)Ta((2-2x)/3)k(x/3)Ti(x/3))O-3 where quality factor is reasonably good (Q(u) x f = 80,000-90,000 GHz). The Ba(Mg1/3Ta(2-2x)/3Wx/3Tix/3)O-3 with x = 1.0 has epsilon(r) = 15.4, iota(f) = -25.1 ppm/ degrees C, Q(u) x f = 35,400 GHz.
URI:	http://ir.niist.res.in:8080/jspui/handle/123456789/2191
ISSN:	0025-5408
Appears in Collections:	2006

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