Abstract
Preparation and characterization of ZrO2/CeO2 ceramic composite synthesized by microwave combustion method
Hanan H. Abo-almaged*, Reham M. Khattab and Heba E. H. Sadek
DOI : http://dx.doi.org/10.13005/ojc/320126
Abstract:
ZrO2 nano-powders with the substitution of; 5, 12 and 17 mole %CeO2 contents were prepared by a microwave combustion method utilizing Ce(NO3)3.6H2O, ZrN2O7.xH2O and urea as precursors. The obtained cakes were calcined at different temperatures. XRD, SEM, EDS, and TEM techniques were used to determine the effect of microwave and calcining temperature between 450 to 1000oC on the prepared powders. The results obtained show the formation of a single phase; a tetragonal solid solution with a particle size ranging between 10 to 20 nm. The densification parameters, phase compositions, microstructures and mechanical properties (micro-hardness) were investigated.
Keywords:Microwave combustion method; ZrO2/CeO2 ceramic; XRD; nano particles; TEM; SEM
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