Silicon Carbide is used as a raw component in certain glazes applied to ceramics. At substantial temperatures it could lower metal oxides forming silica and carbon dioxide. The phenomenon of electroluminescence was discovered in 1907 applying silicon carbide and many of the 1st industrial LEDs were dependant on this material. https://duker-glass-lined-pipe26047.ziblogs.com/35965086/nbn-powder-packaging-can-be-fun-for-anyone