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http://hdl.handle.net/2080/40
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DC Field | Value | Language |
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dc.contributor.author | Bhattacharyya, S | - |
dc.contributor.author | Pratihar, S K | - |
dc.contributor.author | Sinha, R K | - |
dc.contributor.author | Behera, R C | - |
dc.contributor.author | Ganguly, R I | - |
dc.date.accessioned | 2005-05-20T07:35:59Z | - |
dc.date.available | 2005-05-20T07:35:59Z | - |
dc.date.issued | 2002-04 | - |
dc.identifier.citation | Materials Letters, Vol 53, Iss 6, P 425-431 | en |
dc.identifier.uri | http://hdl.handle.net/2080/40 | - |
dc.description | Copyright of this article belongs to Elsevier Science Ltd | en |
dc.description.abstract | Microcomposites of alumina and zirconia containing equal volume fractions of the two are prepared by a combined gel-precipitation route using aluminium chloride and zirconium oxychloride as precursors. Dried gel powders calcined between 375 and 800 °C show cubic phase as the only crystalline phase. Zirconia gets converted to tetragonal phase above 900 °C and is retained mostly in this form upto 1000 °C. At the higher temperatures, it converts to the monoclinic phase. Alumina starts to crystallize into -form at 900 °C and is converted to -form at 1250 °C. Pressed pellets sintered at 1400 °C achieve densities close to theoretical in 4 h. Microstructures show evidence of segregation and coarsening in a composite matrix of alumina and zirconia mixed at a submicron level. | en |
dc.format.extent | 476745 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | Elsevier | en |
dc.subject | Alumina–zirconia microcomposites | en |
dc.subject | Gel-precipitation | en |
dc.subject | Powder processing | en |
dc.title | Preparation of alumina–high zirconia microcomposite by combined gel-precipitation | en |
dc.type | Article | en |
Appears in Collections: | Journal Articles |
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bhatta4.pdf | 465.57 kB | Adobe PDF | View/Open |
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