Structure and superconductivity of tin-containing HfTiZrSnM (M = Cu, Fe, Nb, Ni) medium-entropy and high-entropy alloys

Gačnik, Darja (avtor), Jelen, Andreja (avtor), Krnel, Mitja (avtor), Vrtnik, Stanislav (avtor), Luzar, Jože (avtor), Koželj, Primož (avtor), Midden, Marion van (avtor), Zupanič, Erik (avtor), Wencka, Magdalena (avtor), Meden, Anton (avtor), Hu, Qiang (avtor), Guo, Sheng (avtor), Dolinšek, Janez (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: high-entropy alloys, structure and microstructure, superconductivity
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FMF - Fakulteta za matematiko in fiziko ; FKKT - Fakulteta za kemijo in kemijsko tehnologijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: 26 str.
• Številčenje: Vol. 14, iss. 14, art. 3953
• PID: 20.500.12556/RUL-136015
• UDK: 53
• ISSN pri članku: 1996-1944
• DOI: 10.3390/ma14143953
• COBISS.SI-ID: 71210755
• Datum objave v RUL: 06.04.2022

Gradivo je del revije

• Naslov: Materials
• Skrajšan naslov: Materials
• Založnik: MDPI
• ISSN: 1996-1944
• COBISS.SI-ID: 33588485

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 15.07.2021