Thermal, structural, and mechanical degradation of Tyranno fibers: an experimental and kinetic modeling study

This experimental and theoretical study systematically investigates the structural, chemical, mechanical, and kinetic behavior of Tyranno fibers subjected to high-temperature exposure. Fibers were heat-treated in an argon atmosphere from 1200 °C to 1500 °C and characterized using FTIR, XRD, TGA, SEM, and mechanical testing. The experimental findings revealed a significant reduction in mechanical performance—with tensile strength and Young's modulus decreasing markedly—that correlated with micros