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DC Field | Value | Language |
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dc.contributor.author | Sarkar, D | - |
dc.contributor.author | Mohapatra, Deepak | - |
dc.contributor.author | Ray, S | - |
dc.contributor.author | Bhattacharyya, S | - |
dc.contributor.author | Adak, S | - |
dc.contributor.author | Mitra, N | - |
dc.date.accessioned | 2006-09-21T04:42:12Z | - |
dc.date.available | 2006-09-21T04:42:12Z | - |
dc.date.issued | 2006 | - |
dc.identifier.citation | Ceramics International (Accepted) | en |
dc.identifier.uri | http://hdl.handle.net/2080/339 | - |
dc.description | Copyright for this article belongs to Elsevier doi:10.1016/j.ceramint.2006.05.002 | en |
dc.description.abstract | Al2O3–ZrO2 composite gel precursor powder containing 5–15 mol% ZrO2 was prepared by wet chemical route. The washed gel containing pseudoboehmite and amorphous zirconia was characterized with respect to DTA/TG, XRD and IR spectroscopy. The DTA/TG result indicates three-stage decomposition for pseudoboehmite and single stage decomposition for amorphous zirconia. In the calcined powder phase evolution of Al2O3 follows the sequence pseudoboehmite → bayerite → boehmite → γ-Al2O3 → θ-Al2O3 → α-Al2O3, while that of ZrO2 follows amorphous ZrO2 → t-ZrO2 → (t + m)ZrO2. FTIR studies revealed that the number of M–OH and M–O bond increase on increasing mol% of ZrO2 due to a change in the cationic charge of the composite powder. TEM photograph of calcined powder showed both dispersed nano-size spherical particle as well as agglomerated particles. EPMA confirmed the near uniform distribution of zirconia particles in the alumina matrix. | en |
dc.format.extent | 746213 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | Elsevier | en |
dc.subject | Alumina–zirconia | en |
dc.subject | Hydrogel | en |
dc.subject | Crystallization | en |
dc.subject | FTIR | en |
dc.subject | TEM | en |
dc.title | Synthesis and characterization of sol–gel derived ZrO2 doped Al2O3 nanopowder | en |
dc.type | Article | en |
Appears in Collections: | Journal Articles |
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sarkar2006.pdf | 728.72 kB | Adobe PDF | View/Open |
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