Archive | 2021
Solid/liquid interaction between Si-based phase change materials and refractories
Abstract
Abstract A good thermochemical compatibility of ceramics intended to be applied as a vessel with the preselected phase change materials (PCMs) is crucial regarding development of novel ultra-high temperature latent heat thermal energy storage (LHTES) systems. The selection of proper refractories, that will ensure long life-time and reliable service of the system, should be preceded by the experimental verification of candidate materials upon contact heating/cooling cycles. In this chapter, we focus on the characterization of a solid/liquid interaction between Si-based PCMs and potential container materials under conditions specified by the predicted LHTES application. In this regard, new experimental procedures based on the sessile drop method were developed to examine temperature applicability limits of selected PCM/refractory couples and their thermocycling behavior upon consecutive melting/solidification cycles.