Zoom: https://kaust.zoom.us/j/95966036632

Abstract

High-temperature, high-heat-flux, and specifically distributed extreme thermal environments are widely present in fields such as aerospace and nuclear energy utilization, posing serious threats to the safe operation of equipment. Current ground-based thermal assessment equipment, primarily consisting of wind tunnels and radiation lamp arrays, struggles to meet increasingly stringent testing requirements efficiently and cost-effectively. Leveraging the high energy density, high controllability, and high energy utilization efficiency of scanning electron beam, we have pioneered the scanning electron beam thermal assessment method. Serving as a pre-testing technique for wind tunnel experiments, this method can achieve a heat flux of up to 50 MW/m² and temperatures reaching 3000°C. The thermal environment created is spatiotemporally controllable, providing an efficient, low-cost, and reliable testing means for the research and iterative development of thermal protection materials and efficient cooling technologies. This report introduces the method of creating extreme thermal environments based on scanning electron beam and the latest advancements.

Biography

Prof. Hong Ye is a professor and doctoral supervisor at the University of Science and Technology of China (USTC), director of the Thermal Control and Energy Conversion Laboratory. He has long been engaged in hypersonic vehicle thermal assessment, high-temperature thermophysical properties of materials, and vegetation bionics. As first/corresponding author, he has published over 120 SCI-indexed papers.