Graphite crucible interaction with Fe–Si–B phase change material in pilot-scale experiments

Abstract Fe–26Si–9B alloy is a promising high temperature phase change material (HTPCM), due to its heat of fusion, small volumetric change, abundance, and low cost. Additionally, graphite has been identified as candidate for use container this alloy. In study, the feasibility using HTPCM investigated in pilot-scale. Specifically, 4–5 kg master alloys were melted crucibles an induction furnace, which underwent 2–3 thermal cycles range 1,100–1,375°C. The results showed that SiC B 4 C precipitates formed alloys. However, these carbides found be present only on surface solidified not main body. Still, chemical composition remained relatively stable during cycles. It was also seen crucible withstood without cracking. Therefore, approach.