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LJournal of Alloys and Compounds 270 (1998) 95106 Characterization of BaSnO -based ceramics3

Summary: LJournal of Alloys and Compounds 270 (1998) 95106
Characterization of BaSnO -based ceramics3
Part 1. Synthesis, processing and microstructural development
*Abdul-Majeed Azad , Nee Chen Hon
Department of Physics, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
Received 24 November 1997; received in revised form 31 January 1998
The compound BaSnO together with its Ca- and Sr-analogs, has recently been projected as potential electronic ceramic material3
(thermally stable capacitor, chemical sensor for humidity, CO and NO , etc.). In order to fill the information gaps in the reported research,x
a vigorous and systematic investigation on these exotic materials has been initiated. A thorough study of BaSnO with respect to its3
synthesis, processing and microstructural characterization has been made. In order to establish a standard methodology for low-cost
mass-manufacturing with identical and beneficial microstructure and reproducible electrical characteristics, different synthesis routes
(solid-state and self-heat-sustained) were adopted. Evolution of microstructure which is intimately related to the envisaged properties in
the ceramics, was closely and systematically followed in terms of sintering over a wide range of temperatures and soak time. This
communication forms the first of two parts in a series of investigations on MSnO systems, where results on the synthesis and processing3
of ``phase pure'' barium stannate (BaSnO ) and development of interesting microstructure are presented. 1998 Elsevier Science S.A.3
Keywords: Barium stannate; Capacitor; Gas sensor; Electronic ceramics; Solid-state; Self-heat-sustained; Microstructure
1. Introduction thermally stable capacitors in electronic industries. In pure
as well as in doped forms these stannates have also been
The double oxides of the general formula, (AE)BO , investigated as potential sensor materials for a host of3


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


Collections: Materials Science; Energy Storage, Conversion and Utilization