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Mg2SnO4 ceramics II. Electrical characterization

Summary: Mg2SnO4 ceramics
II. Electrical characterization
Abdul-Majeed Azad a,
*, Liew Jing Min a
, Mohammad A. Alim b
Department of Physics, University Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
Department of Electrical Engineering, Alabama A&M University, PO Box 297, Normal, AL 35762, USA
Received 6 June 2000; accepted 4 July 2000
The inverse spinel-structured Mg2SnO4 possessing steady capacitance over the temperature range between 27 and 300
C in a
frequency domain spanning nearly four decades has been examined by an a.c. technique. The samples investigated in this study
were synthesized by using solid state reaction (SSR) and self-heat-sustained (SHS) techniques. The a.c. immittance (impedance or
admittance) measurements in the frequency range 5 Hz±13 MHz were carried out on bodies sintered at 1500
C/6 h and 1600
C/2 h. The
acquired electrical data exhibited relaxation in the Z*-plane alone, in the form of a small arc of a large semicircle. The magnitude of the
terminal capacitance was found to be in a narrow window of $8±11 pF, while the average dielectric constant was about 10. Further


Source: Azad, Abdul-Majeed - Department of Chemical and Environmental Engineering, University of Toledo


Collections: Materials Science; Energy Storage, Conversion and Utilization