ultra-high-temperature ceramics, ultrahigh-temperature ceramics, ultra-high temperature ceramics
rasksulavate ühendite, sulamistemperatuuriga üle 3000 oC (peamiselt rasksulavate metallide Zr, Nb, Ta, Hf boriidid, karbiidid, nitriidid) baasil tehnokeraamika mis on stabiilne rakendusteks üle 2000 oC (vt tehnokeraamika), a class of refractory compounds (borides, carbides, nitrides of refractory metals Zr, Hf, Nb, Ta etc) that have melting point above 3000 oC, and offering excellent stability at temperatures exceeding 2000 oC
