About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Magnetic Materials for Energy and Power Conversion Applications
|
Presentation Title |
Generating Electricity from Waste Heat using Magneto-structural Materials |
Author(s) |
Ekkes Brueck |
On-Site Speaker (Planned) |
Ekkes Brueck |
Abstract Scope |
Magneto-caloric power conversion can be used to convert heat into electricity that up to now was considered as waste. With the advent of giant magneto-caloric effects that occur in conjunction with magneto-elastic or magneto-structural phase transition of first order, room temperature heat-pump applications became feasible. In this context the MnFe(P,Si) system is of particular interest as it contains earth abundant ingredients that are not toxic. Other promising materials are based on La(Fe,Si)13.
Magneto-caloric power-conversion calls for a somewhat different combination of properties, in particular a large latent heat that is favourable for a heatpump, is detrimental for power conversion as a lot of heat is needed to change the temperature. Yet a large change of magnetization is required to generate a high torque in a device, which suggests one should either employ materials exhibiting exchange inversion or second order materials. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |