Abstract Production and characterization of geopolymers prepared by mixing metakaolin, end-of-life dolomite refractories, sodium silicate solution, hydroxide solution have been performed. The as-received refractory was crumbled in order to obtain products having, respectively, 250 ?m, 1 mm, 2.5 mm maximum particles size. Each batch powder added different proportions a blank geopolymeric matrix....

Refractory high entropy alloys (HEA), such as BCC NbMoTaW, represent a promising materials class for next-generation high-temperature applications, due to their extraordinary mechanical properties. A characteristic feature of HEAs is the formation of single-phase solid solutions. For BCC NbMoTaW, recent computational studies revealed, however, a B2(Mo,W;Nb,Ta)-ordering at ambient temperature. T...