Temperature Effects on the Dynamic Behavior of Silicon Carbide

Laser shock micro-flyer experiments were conducted at elevated temperatures to study how temperature affects the dynamic performance and spall strength of silicon carbide. This was achieved with two distinct phases. In the first phase, polycrystalline silicon carbide samples were rapidly heated with a laser to induce microstructural changes. These preheated specimens underwent room-temperature laser shock micro-flyer testing to evaluate how the altered microstructure affected their dynamic behavior. In the second phase, laser shock micro-flyer experiments were performed at high temperatures to determine the effect of temperature on silicon carbide's spall response and dynamic properties. This two-phase approach separates the immediate effects of temperature from the impact of heat-induced microstructural changes, providing insight into how both factors influence silicon carbide's dynamic behavior.