Phase and microstructure evolution of SrCeO3 ceramic when exposed to molten V2O5 at 700–1250 ºC
Source abstract
Abstract
Abstract Hot corrosion behaviour of SrCeO3 ceramic in molten V2O5 was studied at 700–1250 °C. Sr2V2O7, CeO2 and CeVO4 were the main reaction products at 700 °C and 900 °C, while only Sr3V2O8 and CeO2 can be detected at 1250 °C. The corrosion zone was divided into several layers. Both the structure and composition of the corrosion zones were dependent on the corrosion temperature. The microstructure of corrosion zone appeared to have evolved in two major stages, including a first dissolve-precipitation process and a subsequent grain boundary attack process. Finally, a model describing the formation of the corrosion layer was established.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · Nuclear Materials and Properties · Metallurgical Processes and Thermodynamics
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