High-temperature, non-contact roll-to-roll processing of silicon carbide via radio frequency electrothermal heating

Le résumé fourni par la source

This work introduces a novel radio frequency (RF) electrothermal heating approach for high-temperature, non-contact, and scalable material processing Traditional furnace-based heating systems suffer from slow heating rates, poor thermal uniformity, and high energy costs. Electrification of heating could reduce both operational costs and associated greenhouse gas emissions. This work introduces novel RF induction coils designed to heat conductive materials, specifically Hi-Nicalon™ Type S silicon carbide fibers, to temperatures exceeding 1200 °C in an inert, controlled environment. The system achieves rapid heating rates reaching up to 200 °C/s at only 1 W of applied power, demonstrating highly efficient energy conversion. Experimental heating results were complemented by COMSOL Multiphysics simulations, which show good agreement in temperature profiles, validating that the heating behavior observed in experiments can be reproduced and predicted through simulation. To demonstrate scalability and relevance to continuous manufacturing, the RF apparatus was integrated into a roll-to-roll configuration, enabling continuous contactless heating of silicon carbide fiber tows. This establishes a pathway for continuous, high-temperature RF-based processing of industrially relevant materials. Overall, this work defines a new platform for high-throughput thermal treatment of conductive materials and highlights its applicability to next-generation composite and ceramic manufacturing, as well as other advanced industrial thermal processes.

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