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Tungsten Scraps and Graphite Foil Waste as Precursors for Manufacturing W–C–Co Materials: Carbidization of Tungsten Compounds in Presence of Graphene Oxides

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Abstract:

Abstract. W–C–Co materials were obtained from tungsten scraps and graphite foil waste (GFWs). We converted metallic tungsten-containing scrap (spirals, plates, wires, rods, powders, etc.) into poly(peroxytungstic acid) (PPTA) using a relatively inexpensive processing technology. Graphene oxide (GO) and reduced graphene oxide (rGO) were synthesized from GFWs: GO(graflex) and rGO(graflex). The interaction of these products led to GO(graflex)–PPTA and GO(graflex)–PPTA–Co(CH3COO)2 complexes, which were converted into rGO(graflex)–WOx and rGO(graflex)–WOx–CoO composites through vacuum-thermal treatment. At 900–1100°C in a hydrogen atmosphere, the phases WC, W₂C, and Co₃W₃C₃ were formed. Under identical conditions, the sucrose-containing PPTA–sucrose–cobalt acetate composite yielded only the WC–Co powder composite.

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Periodical:

Materials Science Forum (Volume 1178)

Pages:

93-102

DOI:

https://doi.org/10.4028/p-if8TO5

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Online since:

February 2026

Authors:

Natia Barbakadze*, Ketevan Sarajishvili, Ketevan Kochiashvili, Maia Japaridze, Maia Stephanishvili, Vakhtang Gabunia, Irma Jinikashvili, Otar Tsagareishvili, Shorena Dekanosidze, Levan Chkhartishvili, Roin Chedia

Keywords:

Carbidization, GO-PPTA, Graphite Foil Waste, Tungsten Scrap, W-C-Co Materials

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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