2025-05-142025-05-142025Manchón-Gordón, A.F., Molina Molina, S., Perejón Pazo, A., Sánchez-Jiménez, P. y Pérez-Maqueda, L.A. (2025). A practical analysis to predict sample overheating in flashexperiments using the current ramp methodology. Journal of the American Ceramic Society, 108 (3), e20248. https://doi.org/10.1111/jace.20248.1551-29160002-7820https://hdl.handle.net/11441/172708This work presents a straightforward strategy for achieving specific overheatingduring flash experiments by adjusting the initial electrical parameters. To do that,an extensive experimental analysis was performed to evaluate the temperatureevolution of dense ZnO specimens during controlled-current ramping at differ-ent furnace temperatures, which in turn modified the initial electrical resistanceof the sample. A detailed electrical explanation of controlled-current ramp flashprocesses is provided and, for the first time, a practical equivalence betweencurrent-ramp and temperature-ramp flash methodologies is established. Byparameterizing the experiments in terms of an effective power density, a con-sistent heating pattern following the blackbody radiation trend was identified,despite the different electrical characteristics of each experiment. Finally, a “flashheating map” is introduced, which can be used to determine the starting elec-trical parameters necessary to achieve a specific temperature increase, whetheremploying current or temperature rampsapplication/pdf9engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Blackbody radiationControlled-current rampingFlash sinteringOverheatingZinc oxideinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.1111/jace.20248