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Title: Synthesis and characterization of (HfMoTiWZr)C high entropy carbide ceramics
Authors: Kavak, S.
Bayrak, K.G.
Bellek, M.
Mertdinç, S.
Muhaffel, F.
Gökçe, H.
Ayas, E.
Keywords: High entropy carbides
Mechanical properties
Ball milling
Hafnium compounds
Milling (machining)
Particle size
Particle size analysis
Powder metallurgy
Powder metals
Scanning electron microscopy
Spark plasma sintering
Titanium carbide
Titanium nitride
Wear of materials
Wear resistance
Zirconium compounds
Carbide ceramics
High entropy carbide
High-energy ball milling
In compositions
Periodic table
Synthesis and characterizations
X ray diffractometers
Issue Date: 2021
Publisher: Elsevier Ltd
Abstract: (HfMoTiWZr)C high entropy carbides (HEC) were prepared from the commercial carbide powders of IVB (Hf, Ti, Zr) and VIB (Mo, W) group metals of the periodic table via high energy ball milling (HEBM) and spark plasma sintering (SPS). Metal carbide powders (HfC, TiC, ZrC, Mo2C and WC) were HEBM'd for 3 h in a vibratory ball mill, and then SPS'd at different temperatures (1800, 1900, 2000 and 2100 °C). The HEBM'd powders and SPS'd ceramics were characterized in composition, density and microstructure using an X-ray diffractometer (XRD), a scanning electron microscope/energy dispersive spectrometer (SEM/EDS), a particle size analyzer and a pycnometer. Also, microhardness and sliding wear tests were conducted on the SPS'd ceramics. Based on the performed characterization, a single-phase FCC structure was observed at all sintering temperatures indicating a high entropy carbide ceramic, and they all have high hardness and wear resistance values. © 2021 Elsevier Ltd and Techna Group S.r.l.
ISSN: 0272-8842
Appears in Collections:Malzeme Bilimi ve Mühendisliği Bölümü Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu

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