Details

ERC sector
PE3 - Condensed Matter Physics
ERC subsector
PE3_8 - Magnetism and strongly correlated systems
Project start date
CUP
D53D23019360001
Financial support received
€72.596,00

Description and purpose

The STEve project aims to boost the research on thermomagnetic generation technologies, developing advanced miniaturized TM materials, that can be efficiently exploited as active elements in innovative thermomagnetic oscillators for the harvesting of low-grade heat (from sources in the 20-80°C temperature range) and production of electric power on a small-scale.

Purpose

The STEve project is characterized by a multidisciplinary (physics, materials science and engineering) and multi-level perspective that look both at the optimization of physical properties of thermomagnetic materials and at the definition of routes for their miniaturization in thin active elements with high thermomagnetic, thermal and mechanical performance to boost the frequency of thermomagnetic cycles on which TMGs are based.

Expected results

The  STEve project aims to achieve three objectives: 1) the synthesis of Heusler alloys and high-entropy alloys with thermomagnetic properties optimized for low-enthalpy heat recovery; 2) the production of miniaturized thermomagnetic elements in the form of thin ribbons or composite material foils; 3) the development of a small-scale prototype of a thermomagnetic oscillator to assess, under operating conditions, the performance and durability of the materials obtained.

Achieved results

The STEve project led to the following results: 1) reproducible synthesis of various series of Heusler and high-entropy alloys with a Curie transition tunable via composition in the 20–80°C range and high saturation magnetization; 2) thin ribbons and composite strips with thicknesses between 10 and 500 µm, based on the materials from point 1; 3) a laboratory-scale thermomagnetic oscillator prototype, useful for characterizing the materials under operating conditions.

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