Bismuth oxide based ceramics with improved electrical and mechanical properties
نویسندگان
چکیده
منابع مشابه
BISMUTH OXIDE BASED CERAMICS WITH IMPROVED ELECTRICAL AND M E C H A N I C A L PROPERTIES Part I. Preparation and characterisation
I N T R O D U C T I O N Stabilised ~ bismuth oxide based systems form a new generation of compounds capable of improved performance in oxygen pump and oxygen sensor applications compared to the conventional stabilised zirconia based materials. The high temperature isomorph of bismuth oxide, the ~ phase, is an excellent oxygen ion conductor (I). This phase can be stabilised to room temperature b...
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Lead-free bismuth sodium titanate zirconate (Bi0.5Na0.5Ti1-xZrxO3 where x = 0.20, 0.35, 0.40, 0.45, 0.60, and 0.80 mole fraction) [BNTZ] ceramics were successfully prepared using the conventional mixed-oxide method. The samples were sintered for 2 h at temperatures lower than 1,000°C. The density of the BNTZ samples was at least 95% of the theoretical values. The scanning electron microscopy mi...
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Due to its unique electronic properties bismuth is of enormous interest for studies on the nanoscale. In particular, when the object size is comparable to the mean free path of charge carriers le (~ 100 nm and ~ 400 μm at 300 and 4 K, respectively [1]), mesoscopic effects such as electron scattering at both surface [2] and grain boundaries [3] become significant. For investigating the influence...
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Composite materials formed by a LAS matrix reinforced with second phases are promising materials in many applications where better mechanical properties than those corresponding to conventional low thermal expansion coefficient materials are required. In this study we will show the capability of the design of a LAS-alumina submicron composite. The main scope of this work is to test the sinterab...
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ژورنال
عنوان ژورنال: Materials Research Bulletin
سال: 1988
ISSN: 0025-5408
DOI: 10.1016/0025-5408(88)90011-6