Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9803980 | Journal of Alloys and Compounds | 2005 | 4 Pages |
Abstract
Zirconia, ceria and zirconia-ceria solid solution have been synthesized using internal gelation process. The thermal decomposition behaviour of internally gelated ZrO2, CeO2 and Zr0.9Ce0.1O2 were investigated using thermo-gravimetry (TG), differential thermal analysis (DTA) and differential scanning calorimetry (DSC) along with X-ray diffraction (XRD). The ceria gel decomposes to give a crystalline phase whereas zirconia as well as zirconia-ceria gels decompose to amorphous phase which on heating undergoes irreversible transformation to corresponding equilibrium crystalline phases. The sol-gel derived product could be sintered to 92% theoretical density using microwave energy source in 60Â min. The oxides obtained from the thermal decomposition are found to be nano-phasic in nature.
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Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
K. Suresh Kumar, Tom Mathews,