Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSarkar, D-
dc.contributor.authorMohapatra, Deepak-
dc.contributor.authorRay, S-
dc.contributor.authorBhattacharyya, S-
dc.contributor.authorAdak, S-
dc.contributor.authorMitra, N-
dc.identifier.citationCeramics International (Accepted)en
dc.descriptionCopyright for this article belongs to Elsevier doi:10.1016/j.ceramint.2006.05.002en
dc.description.abstractAl2O3–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.extent746213 bytes-
dc.titleSynthesis and characterization of sol–gel derived ZrO2 doped Al2O3 nanopowderen
Appears in Collections:Journal Articles

Files in This Item:
File Description SizeFormat 
sarkar2006.pdf728.72 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.