Andraž Bradeško, a PhD student currently working on the research project, presented the results of his studies on a multifunctional refrigerator, consisting of an array of electromechanical and electrocaloric elements, at the conference ISAF 2016 in Darmstadt, Germany. The results were disseminated both as an oral presentation and poster. The poster presenting the actuator/cooling system as the main concept of the project was awarded with »Best poster award for the student poster competition«.
E.02 International awards
COBISS.SI-ID: 29700647In the scope of the project we developed and constructed two measurement systems for characterization of the electrocaloric (EC) effect; one devoted for room-temperature measurements and the other for measurements in the temperature interval between -50°C and 200°C. The room-temperature setup enables fast measurements of the EC effect on different samples. We also developed a software which allows fatigue studies where samples are subjected to continuous cycling with electric field. The measurement system for characterization of EC temperature changes in the temperature range between -50°C and 200°C uses a differential scanning calorimeter for accurate temperature regulation and stabilization. Both setups will be further used to characterize EC samples within the research project.
F.17 Transfer of existing technologies, know-how, methods and procedures into practice
COBISS.SI-ID: 30301735Within the collaboration with Prof. Jones group at the North Carolina State University (NCSU) we performed in situ X-ray diffraction experiments to investigate the crystal structure and phase composition of (1–x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x=0.1, 0.3) ceramics under applied electric field. While the structure of PMN-0.1PT remained the same, we found out that the structure of PMN-0.3PT transformed from monoclinic Cm to monoclinic Pm and further to tetragonal P4mm at higher electric fields. Dong Hou from NCSU presented a part of these new project results at the EMA2017 conference.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 30236967