Synthesis and Properties of Strontium -Alumina

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Abstract:

It has been shown that strontium -alumina is a stable phase at compositions close to SrAl10O17 and can be further stabilized over a composition range in the presence of MgO in the SrO–MgO–Al2O3 system. In the absence of MgO, at temperatures greater than 1673 K, the magnetoplumbite phase is readily formed. Conductivity measurement carried out at temperatures from 1073 to 1773 K has demonstrated that both the strontium -alumina and the magnetoplumbite phases have reasonably similar magnitudes of conductivity and activation energy.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2005.00852.x

Affiliations: Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB2 3QZ, U.K.

Publication date: April 1, 2006

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