Präparation und Supraleitungseigenschaften von reinem sowie zirkon- und titanhaltigem Niobnitrid

Abstract

Die Pr/iparation yon reinen sowie zirkon-und titanhaltigen Niobnitridproben durch Diffusion yon Stickstoff unter Druck in Niobdr/ihte ohne und mit Zirkon-bzw. Titanzusatz wird beschrieben. Unter gfinstigen Herstellungsbedingungen sind die (Jberg/inge zur Supraleitung sehr steil (Llbergangsbreite unter 0,1 ~ FOr reines Niobnitrid wird als h6chste fdbergangstemperatur 16,7 ~ beobachtet. Die ~dbergangs-temperatur wird durch Titanzusatz geringffigig erh6ht, durch Zirkonzusatz jedoch erniedrigt.

Synthesis of VN nanopowders by thermal nitridation of the precursor and their characterization

“…These results agree well with XPS analysis (Figs. [5][6][7][8][9], and similar results have been obtained in the literature [14,29].…”

“…The traditional applications of these materials range from cutting tools and structural materials [2,3] to magnetic and electric components [4], and superconducting devices [5][6][7]. Among them, vanadium nitride (VN) is suitable for many uses due to its typical properties including extreme hardness, wear resistance, excellent oxidative stability and corrosion resistance, high-temperature stability, and electrical conductivity [8].…”

Carbothermal synthesis of vanadium nitride: Kinetics and mechanism

“…Vanadium nitride (VN) has extreme hardness, high-temperature stability, and electrical conductivity that make this material suitable for many uses. The traditional applications of these materials range from cutting tools and structural materials [1,2] to magnetic and electric components [3], and superconducting devices [4][5][6]. Moreover, there is increasing interest on vanadium nitride as an important industrial catalyst known for its selectivity and stability [7,8].…”