Behavior of plasma-sprayed zirconium dioxide ceramic under the thermochemical effect of components of the reactor core melt
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The investigations have shown that, even though the zirconium dioxide layer sprayed on the metal interacts considerably with molten oxides of other metals (Fe, Ti, Ni), forming a porous loose structure, the saturation zone even with air cooling (not to mention water cooling) of the cold surface does not reach the metal, i.e., a considerable part of the zirconium dioxide remains integral and capable of transmitting large heat fluxes with no substantial damage. That attests to a promising outlook for the construction of a protection refractory layer of both an external and in-reactor core catcher by plasma-spraying ceramic onto a metal substrate.
KeywordsHeat Flux Water Cool Metal Substrate Considerable Part Saturation Zone
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