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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/38

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contributor.authorSahu, P K-
contributor.authorBehera, S K-
contributor.authorPratihar, S K-
contributor.authorBhattacharyya, S-
date.accessioned2005-05-20T04:57:20Z-
date.available2005-05-20T04:57:20Z-
date.issued2004-
identifier.citationCeramics International, Vol 30, Iss 7, P 1231-1235en
identifier.urihttp://hdl.handle.net/2080/38-
descriptionCopyright of this article belongs to Elsevier Science Ltden
description.abstractA novel chemical synthesis route has been developed to prepare LaAlO3 from low cost inorganic precursors, by gelation–precipitation technique. Phase evolution, morphology, agglomeration and surface area were studied as a function of chloride content and heat treatment temperature. The samples containing chloride crystallized at 1100 °C with the formation of intermediate phases. The product was highly agglomerated and had low surface area. On the contrary, the as-synthesized chloride-free samples crystallized directly to pure LaAlO3 perovskite phase at 600 °C, which is the lowest crystallization temperature achieved so far. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) of chloride-free samples reveal very fine clusters of nanosized spherical particles. The as synthesized and calcined chloride-free samples have a high surface area and are thermally stable upto 1600 °C without decomposition.en
format.extent211738 bytes-
format.mimetypeapplication/pdf-
language.isoen-
publisherElsevieren
subjectElectron microscopyen
subjectPerovskitesen
subjectSubstratesen
titleLow temperature synthesis of microwave dielectric LaAlO3 nanoparticles: effect of chloride on phase evolution and morphologyen
typeArticleen
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