A big challenge when recycling metals is the wide range of elements the scrap contains. Here is an attempt to systematically determine the composition by randomly selecting pieces from a scrap pile.
Electric Arc Furnaces are commonly used to melt metal scrap for recycling. This lab-scale furnace can study this process in detail. (Photo: Nils Andersson, KTH)
Energy can be stored in supercapacitors. Extra powerful and cheap supercapacitors can be made from two-dimensional materials such as graphene or molybdenum disulfide using inkjet printing.
Biodegradable plastic materials can be made from seaweed.
Polymers can be used to create electricity from a temperature difference.
Super thin loudspeaker, made from magnetic nanopaper. (Photo: Richard Andersson, KTH)
Materials research at KTH
Materials is one of KTH's five multidisciplinary focus areas. Many of the ongoing research projects aim at a sustainable development.
Materials science has traditionally been an important research area at KTH with strong ties to Swedish industry. In fact, one of the very first departments at KTH was founded to supply the mining industry with skilled engineers. In addition to the research and education in traditional materials such as metal alloys and wood, KTH is very active in the fields of polymers, electronic and photonic materials, biomedical materials, nanostructured materials and magnetic materials.
Many of the ongoing projects aim at contributing to a sustainable development, by, e.g., finding replacements for toxic substances and critical raw materials, develop environmentally friendly water cleaning technologies, or develop materials for energy technologies such as thermoelectrics and solar energy.
Materials research at KTH is inherently multidisciplinary with strong ties to mechanics, process technology, design, product development, and life cycle analysis.