20.500.12556/RUL-136015 Structure and superconductivity of tin-containing HfTiZrSnM (M = Cu, Fe, Nb, Ni) medium-entropy and high-entropy alloys In an attempt to incorporate tin (Sn) into high-entropy alloys composed of refractory metals Hf, Nb, Ti and Zr with the addition of 3d transition metals Cu, Fe, and Ni, we synthesized a series of alloys in the system HfTiZrSnM (M = Cu, Fe, Nb, Ni). The alloys were characterized crystallographically, microstructurally, and compositionally, and their physical properties were determined, with the emphasis on superconductivity. All Sn-containing alloys are multi-phase mixtures of intermetallic compounds (in most cases four). A common feature of the alloys is a microstructure of large crystalline grains of a hexagonal (Hf, Ti, Zr)$_5$Sn$_3$ partially ordered phase embedded in a matrix that also contains many small inclusions. In the HfTiZrSnCu alloy, some Cu is also incorporated into the grains. Based on the electrical resistivity, specific heat, and magnetization measurements, a superconducting (SC) state was observed in the HfTiZr, HfTiZrSn, HfTiZrSnNi, and HfTiZrSnNb alloys. The HfTiZrSnFe alloy shows a partial SC transition, whereas the HfTiZrSnCu alloy is non-superconducting. All SC alloys are type II superconductors and belong to the Anderson class of “dirty” superconductors. high-entropy alloys structure and microstructure superconductivity true false true Angleški jezik Ni določen Članek v reviji 2022-04-06 14:28:45 2022-04-06 14:28:46 2022-09-15 04:13:12 0000-00-00 00:00:00 2021 0 0 26 str. iss. 14, art. 3953 Vol. 14 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 53 1996-1944 10.3390/ma14143953 71210755 RAZ_Gacnik_Darja_2021.pdf RAZ_Gacnik_Darja_2021.pdf 1 618E3C6BD64A072A706B58E4CF6293AA 79a67635aa21814b3854aee2a5ccf23a0a2a81b90183ba38ae2d9449b9cad5fd 5171e388-b5a5-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=155432 https://www.mdpi.com/1996-1944/14/14/3953 0 26005816-b5a5-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=155431 Fakulteta za matematiko in fiziko Fakulteta za kemijo in kemijsko tehnologijo 0 0 0