High-temperature reactive melt spreading: Experimental modeling of SHS reactions

Future insights on high temperature ceramics and composites for extreme environments

“…Self‐propagating high temperature synthesis (SHS) of high temperature ceramics belongs to the combustion category of ceramic processing methods and is depicted through a series of images in Figure 1 1–7 . The unique characteristic of the SHS process is that brief exposure of raw materials to moderately high temperatures or some similar stimulus activates an exothermic reaction that releases enough heat to sustain the reaction without prolonged heating or other driving force input by the user.…”

“…Self-propagating high temperature synthesis (SHS) of high temperature ceramics belongs to the combustion category of ceramic processing methods and is depicted through a series of images in Figure 1. [1][2][3][4][5][6][7] The unique characteristic of the SHS process is that brief exposure of raw materials to moderately high temperatures or some similar stimulus activates an exothermic reaction that releases enough heat to sustain the reaction without prolonged heating or other driving force input by the user. The most notable advantages of SHS over conventional synthesis processes are the relative ease of reaction initiation, the fact that the reaction sustains itself without further energy input, the exceptional purity of products that survive the high temperatures evolved by the reaction, and the high reaction and yield rates since all starting material reacts and the reaction front can move as fast as 0.25 m/s.…”