The Use of Fe-26Si-9B Alloy as Phase Change Material in Si3N4 Container

Fe-26Si-9B alloy was selected as a potential phase change material (PCM) to store energy at temperatures up 1300 °C. A suitable refractory is crucial building PCM container for in thermal storage systems. The should have the ability withstand corrosion from liquid and not pollute after long-term cycles high temperatures. In this work, Si3N4 candidate material. To investigate interaction between alloy, wettability property of an Fe-26Si-9B/Si3N4 system examined sessile drop furnace 1350 Moreover, subjected 1–12 1100 °C, where alloys were placed crucibles resistance under argon. According experiments, equilibrium contact angle droplet substrate measured be ~143°, which non-wetting behavior. Microstructural analyses showed that FeSi, FeB, FeSiB3, SiB6 formed solidified FeSi + FeSiB3 constituted eutectic structure. No nitride phases introduced no new interlayer produced interface crucible cycle experiments. addition, stable with increase cycles. All results show containers