Flash joule‐heating technology for material manufacturing, processing, and emerging applications

Abstract Flash Joule‐heating (FJH) technology emerges as a transformative advancement in electrothermal processing with minimal carbon footprint, which leverages high‐intensity electrical pulses to rapidly heat conductive materials to extreme temperatures (often exceeding 3000 K), inducing dramatic structural transformations through non‐equilibrium pathways, thus displaying feasibility across various application scenarios. Noteworthily, FJH technology has evolved from a laboratory practice to a cornerstone of sustainable materials engineering, witnessing ever‐growing researching interests. Thus, a holistic and timely summary of the recent progress and development of FJH technology is of crucial importance to deepen the understandings and update the remaining difficulties in each application that need to be resolved. While challenges still remain on inhibiting the scaled production upon the deployment of FJH, as such, this review proposes perspectives and strategies to help address key unresolved challenges ghosting FJH technology, in order to make the quick landing of FJH‐led industrial revolution and production.