that graphite is the main phase in all firing temperatures, and that
no pure silicon peaks were detected in any patterns, which indicates
that reaction of Si in molten salt media converts to new
phases. In addition, a very small diffraction peak related to β-SiC
was formed at 2ϴ¼35.64° in the pattern of a sample fired at
1000 °C with a slight increase in relative intensity against firing
temperature. The XRD pattern shown in