Experimental investigation of interaction of strong shock heated oxygen gas on the surface of ZrO2 - a novel method to understand re-combination heating
Interaction of shock heated test gas in the free piston driven shock tube with bulk and thin film of cubic zirconium dioxide (ZrO2) prepared by combustion method is investigated. The test samples before and after exposure to the shock wave are analyzed by X-ray diffraction (XRD), X-Ray Photoelectron Spectroscopy (XPS) and Scanning Electron Microscope (SEM). The study shows transformation of metastable cubic ZrO2 to stable monoclinic ZrO2 phase after interacting with shock heated oxygen gas due to the heterogeneous catalytic recombination surface reaction.
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- 1.Boysen H, and Frey F: Neutron powder investigation of the tetragonal to monoclinic phase transformation in undoped zirconia, Acta. Cryst., B47, (1991) pp881-886.Google Scholar
- 2.Subba Rao E C, Maiti H S, and Srivatava H S: Martensitic transformation in zirconia, Phys. Status solidi A, 21 (1984) pp9-40.Google Scholar