Design of fully-metallic phase change composites from thermodynamic calculations to experimental characterization of form-stable systems
Composite phase change materials(C-PCMs)for thermal energy management exploit the reversible phase transition(e.g.,melting-solidification)of their one or more low-melting active phases to store and release thermal energy as latent heat.At the same time,the high-melting passive phases can provide additional properties,like form-stability and enhanced thermal conductivity.Fully-metallic composite systems with these features can be obtained from immiscible alloys.In this work,thermodynamic calculations and experimental tests are combined to explore the potential of a set of binary(Al-In,Al-Sn,Al-Bi and Cu-Bi)and ternary(Al-In-Sn and Al-Bi-Sn)immiscible alloys for their use as C-PCMs in a temperature range between 100 and 300 ℃.The results show that the combination of the two approaches proved to be necessary to have a full comprehension of the composite system and find the best solution for design requirements,overcoming the time-wasting"trial-and-error"approach and providing high-quality data for simulations.
万方数据
维普
