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Title: Microwave Dielectric Properties of (1- x)Ba(Mg1/3Ta2/3) O3 – (x)Ba(Mg1/8Ta3/4)O3 Ceramics Synthesized by one Pot Metathesis Process
Authors: Bisht, Y
Abhilash, P
Lekshmi, DR
Thirumal, M
Keywords: Ba(Mg1/3 Ta2/3)O3
dielectric properties
One-pot metathesis process
Issue Date: 3-Apr-2020
Publisher: Informa UK Limited
Citation: Ferroelectrics;558(1): 92-103.
Abstract: Complex perovskites (1-x)Ba(Mg1/3Ta2/3)O3–(x)Ba(Mg1/8Ta3/4)O3 (0 ≤ x ≤ 1) were investigated for possible solid solution and composite range using one pot metathesis process. This process lowers the synthesis temperature of Ba-Mg-Ta ceramics to just 1100 °C. Till x = 0.5 the powder X-ray pattern shows the presence of only Ba(Mg1/3Ta2/3)O3 phase. Above x = 0.5 both Ba(Mg1/3Ta2/3)O3 and Ba(Mg1/8Ta3/4)O3 phase starts crystallizing. The samples can be sintered to >90% density at around 1350 °C. Dielectric properties measured at GHz frequency exhibits values in the range: εr = 22 − 29, Q.f = 7000 − 36000 GHz and τf = 14 − 50 ppm/ °C. © 2020, © 2020 Taylor & Francis Group, LLC.
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