Synergetic effect of functionalized few-layered graphene on structural, magnetic and electrical conductivity properties of CoCuFeNi high entropy alloys
Küçük Resim Yok
Tarih
2025
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Sa
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This research investigates the integration of functionalized few-layered graphene (FG) into CoCuFeNi high entropy alloys (HEAs), uncovering notable improvements in their structural, magnetic, and electrical properties. By utilizing a functionalization technique with Triton X-100 as a surfactant, the study addresses graphene agglomeration, enhancing FG dispersion within HEAs during the mechanical alloying (MA) process. The impact of different FG concentrations (0.2 %, 1 %, 2 %, 10 % by weight) on HEA properties was examined. FG incorporation refined the microstructure, reducing crystallite size from 19.48 nm to 9.30 nm at 2 wt% FG, while higher concentrations led to a dual-phase FCC and BCC structure. Magnetic properties were modified, with coercivity increasing from 8.53 Oe in the base alloy to 144 Oe at 10 wt% FG, and saturation magnetization decreasing from 90.22 emu/g to 61.48 emu/g. Electrical conductivity also improved. These enhancements indicate the utility of FG-enriched HEAs in applications demanding robust microstructural refinement, magnetic properties, and high electrical conductivity.
Açıklama
Anahtar Kelimeler
High entropy alloys, Functionalized few-layered graphene, Mechanical alloying, Magnetic properties, Electrical conductivity
Kaynak
Journal of Alloys and Compounds
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
1021
