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Growing population progressively increasing lifestyle and related demand creates pressure on the huge but finite global resources The water energy food nexus implicitly includes also materials both fuels and non fuels Besides water food and energy demand the demand for materials is in fact also steadily growing Pressure on materials resources is often directly translated into pressure on land use massively utilized already for food and energy production fresh water fuels supply etc New technologies will make our life even easier and more comfortable but inevitably the pressure on resources will rise also in scenarios with high renewable energy sources RES penetration Direct utilization of RES at the harvesting locations for the production of materials could be an option also to avoid huge energy transmission and storage infrastructures as well as benefit of overall higher efficiency One way can be the use of RES to extract brines and salts from sea water The produced materials could then be stored and transported to land for further processing possibly using RES sources as well Potentially the impact on land could be negligible or even positive since deserts dry inhabited sea shores or islands unsuitable for agriculture or salt lakes could be utilized and water generated at the same time RES harvesting potential in such areas is often huge while possibility to deliver the energy to dense populated areas is limited In this paper the potential for recovery of materials and fresh water from sea water using RES is investigated The conclusions are indicating concrete possibilities for sustainable materials production in particular for calcium potassium and magnesium for which the European Union EU supplies dependency is The potential to generate significant amounts of fresh water in remote often dry areas is huge as well The technology could be exploited by all countries with sea access

Continuous SiC-fiber-reinforced SiC composite (SiCf/SiC) is an attractive candidate structural material for advanced concepts of future fusion power plants, mainly due to the favourable intrinsic properties of the SiC ceramics, i.e. high temperature- and chemical stability, low neutron activation and afterheat levels as well as due to the fact that it is the only nonmagnetic material proposed. Fabrication of such composites is a very challenging task due to limitations and requirements set for fusion-relevant structural materials.