Seminarium Oddziału Badań Magnetyków
sala nr 6 (bud. II)
In search of new superconductive high entropy alloys (HEA)
mgr Piotr Sobota
Uniwersytet Wrocławski; OBM INTiBS PAN
High entropy alloys defined as the mixtures of five of more elements mixed in non negligible proportions ( at least 5 at.% of each) crystallizing in simple, dense structures, are materials well known for their superior mechanical and chemical properties. In the last decade numerous researchers showed that , depending on chemical composition they can also exhibit unusual superconductive properties. Combining those properties with their mechanical strength and chemical resistivity could lead to development of new functional materials e.g. superconductive electromagnets.
In my presentation I will talk about materials I obtained and investigated during the three years of my doctoral studies. It covers ‘classic’ HEA, alloys with lanthanides, actinides, alloys obtained by powder metallurgy and high entropy carbides. Different methods of synthesis and design of these materials will be discussed as well as its relationship with resulting magnetic properties. I will discuss both
successful developments and dead ends I encountered. I will show not only already published material but also pending papers and current interests/results. All discussed topics are directly related to doctoral dissertation I am currently preparing .
