Elastocaloric cooling is an emerging solid-state cooling technology with the potential to provide environmentally friendly, efficient cooling. The elastocaloric effect in superelastic shape memory alloy films is used to develop advanced cooling devices for small-scale applications. Cascaded and parallelized devices are developed to increase device temperature span and cooling capacity. The concepts are proven experimentally, a maximum temperature span of 27° C is achieved in a cascaded device.

The advantages offered by the flexible electronics and control systems technologies were utilized for tackling the challenges facing two crucial Magnetic Resonance (MR) applications. The first application is in the field of interventional Magnetic Resonance Imaging (MRI), and the other application is in the field of Nuclear Magnetic Resonance spectroscopy (NMR).

Hybrid perovskite photovoltaics could play a vital role in future’s renewable energy production. However, there are still severe challenges when scaling the technology. In this work, perovskite solution films drying in laminar and slot-jet air flows are investigated extensively by optical in situ characterization. The main results are a quantitative model of perovskite drying dynamics and a novel in situ imaging technique – yielding valuable predictions for large-scale perovskite fabrication.

Die Forschung im Bereich der Mikro-Energiegewinnungssysteme wurde durch den Bedarf an autarken, stabilen Energiequellen für vernetzte drahtlose Sensoren vorangetrieben. Abwärme, insbesondere bei Temperaturen unter 200 °C, stellt eine vielversprechende, aber mit den derzeitigen Umwandlungstechnologien schwer zu gewinnende Energiequelle dar. - Research into micro energy harvesting systems has been driven by the need for self-sustaining, stable power sources for interconnected wireless sensors. Waste heat, particularly at temperatures below 200 °C, presents a promising but challenging energy source to recover using current conversion technology.

This book integrates aspects of computational materials science, physical metallurgy, alloy design, structure-properties relationships, and applications of advanced multicomponent alloys. It can serve as a textbook for courses on advanced structural and functional materials for undergraduate and graduate students. Notably, the book compiles cutting-edge research on the progress of materials science of multicomponent alloys from fundamentals to engineering applications. It can be of considerable interest for researchers and scientists in the field of materials science and engineering, mechanical engineering, and metallurgy engineering. In addition, this book not only summarizes the compositions, properties, and applications of various types of multicomponent alloys but also presents a complete idea on the efficient design of materials and processes to satisfy targeted performance in materials and structures. Thus, it can also be used as a reference book for engineers and researchers in industries.

To counter global warming and ozone layer depletion, in recent times a lot of alternative refrigeration methods have been proposed. Elastocaloric effect, a solid state cooling technology, is one of the most recent and potential ones to phase-out traditional vapor compression cooling systems. In this work, an elastocaloric system based on superelastic Nickel-Titanium has been proposed. A proven mathematical material model has been used to predict various design parameters for such a system. The heat transfer characteristics of the model have been modified to accommodate the use of water as the heat transfer fluid. The effect of strain rate on achieving the elastocaloric effect is also been explored. Finally, performance parameters of the system are calculated and compared to the conventional systems.