Microstructure and growth mechanism of tungsten carbide coatings by atmospheric CVD

Zhang, Huicong; Yu, Xiaodong; Nie, Zhihua; Tan, Chengwen; Wang, Fuchi; Cai, Huaijian; Liu, Ying; Wang, Fang; Cai, Hongnian

doi:10.1016/j.surfcoat.2018.03.011

Cited by 19 publications

(5 citation statements)

References 26 publications

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“…[83] Moreover, in the CVD preparation technique, expediting the carburization process is achieved by employing hydrogen and hydrocarbon vapor reduction precursors. [84][85][86] In this procedure, gaining fine powder of tungsten carbide remains, although this methodology offers reasonable control over size, crystal structure, and shape. W 2 C cannot be converted into WC entirely due to rapidity of carburization reaction procedure and formed intermediate.…”

Section: Preparation Approaches Of Pure Phase Wcmentioning

confidence: 99%

“…Prolonged sintering processes can destroy the material‘s crystal structure, resulting in increased structural distortions and defects [83] . Moreover, in the CVD preparation technique, expediting the carburization process is achieved by employing hydrogen and hydrocarbon vapor reduction precursors [84–86] . In this procedure, gaining fine powder of tungsten carbide remains, although this methodology offers reasonable control over size, crystal structure, and shape.…”

Section: Preparation Approaches Of Pure Phase Wcmentioning

confidence: 99%

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Tungsten Carbide‐Based Materials for Electrocatalytic Water Splitting: A Review

Rafique,

Fu,

Han

et al. 2024

ChemElectroChem

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Hydrogen has garnered considerable attention as an environmentally friendly due to its sustainability and exceptional energy density, surpassing other chemical fuels. For H2 production, electrochemical water splitting is an economically viable and eco‐friendly method. Developing well‐organized electrocatalysts for electrochemical water splitting is pivotal in enabling long‐term hydrogen production, the critical component in the transition toward a cleaner and more environmentally sustainable energy landscape. During the last decades, to aid in oxygen evolution and hydrogen evolution reactions, numerous tungsten carbide‐based electrocatalysts have been established. WC developed as a promising candidate for electrolytic hydrogen generation. This review first explores the historical background and fundamental mechanisms underlying water splitting and subsequently investigates the field of WC‐based electrocatalysts. Furthermore, in both HER and OER, the thorough analysis examines the electrocatalytic performance of electrocatalysts based on WC. Finally, it discusses the challenges and prospects of developing WC‐based electrocatalysts for OER and HER, shedding light on their potential contributions to the sustainable energy landscape.

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Section: Preparation Approaches Of Pure Phase Wcmentioning

confidence: 99%

Section: Preparation Approaches Of Pure Phase Wcmentioning

confidence: 99%

Tungsten Carbide‐Based Materials for Electrocatalytic Water Splitting: A Review

Rafique,

Fu,

Han

et al. 2024

ChemElectroChem

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“…Mitterer et al [ 23 ] presented and discussed results obtained on hard coatings applied to die-casting dies using sputtering and plasma-assisted chemical vapour deposition (PACVD) as well as its application in aluminium die casting. Currently, coatings for extrusion dies created using chemical vapour deposition (CVD) are often multi-layer systems, which combine the advantages of TiC, TiN, and TiCN single-layer coating, with advantages of high hardness, low coefficient of friction (COF), corrosion resistance, and good thermal stability [ 24 , 25 , 26 , 27 , 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on Friction and Wear Performance of Hot Extrusion Die Materials

et al. 2022

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For the aluminium alloys produced by the hot extrusion process, the profile is shaped according to the bearing at the exit of the extrusion die. The tribological process has significant effects on the die service life, profile dimensional tolerances, and profile surface finish. Recently, new technologies have been introduced to the hot extrusion die, such as cemented carbide insert die and surface coating. However, under hot extrusion working conditions, quantitative studies on their friction and wear performances are lacking. In this work, the friction and wear performances of three typical extrusion die materials, traditional hot tool steel (H13), cemented carbide (YG8), and chemical vapour deposition (CVD) coating, were studied. Macro and nano hardness tests, Pin-on-disk friction and wear tests, optical profiler and SEM observations, and experiments and simulations of hot extrusion were conducted. The results show that the coefficients of friction of CVD coatings and H13 hot work tool steel specimens were smaller under the hot extrusion condition than at room temperature. The wear mechanisms of H13, YG8, and CVD coatings at 500 °C are adhesion, abrasive, and fatigue, respectively. Moreover, the tribology results were validated by the extrusion experiments and the finite element analysis of hot extrusion. The conclusion of this manuscript is useful not only for the numerical simulation of the hot extrusion process but also for the surface finishing of the extrusion profile.

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“…Уменьшение размера нанопорошков (НП) приво-©Академия наук Республики Узбекистан, 2021 г. дит к существенному улучшению физикомеханических свойств материалов [1]. В настоящее время для синтеза НП карбида вольфрама применяются разные физические и химические методы [2][3][4][5][6][7][8][9], но каждый из них имеет свои недостатки и преимущества. Большинство предлагаемых методов синтеза предусматривает получение НП вольфрама с последующей карбидизацией наночастиц металлического вольфрама [10].…”

Section: Introductionunclassified

Исследования Наночастиц Карбида Вольфрама, Полученных Плазмохимическим Методом

Ашуров¹,

Арустамов²,

Худайкулов³

et al. 2021

УФЖ

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Разработана экспериментальная установка для плазмохимического синтеза нанопорошков карбида вольфрама, которая позволяет получать их непосредственно из оксида вольфрама, для создания наноструктурных твердых сплавов. Синтез нанопорошков карбида вольфрама осуществлен в плазме электродугового разряда низкого вакуума. Изучены возможности использования различных связующих для изготовления брикетов (таблеток) из порошков оксида вольфрама. Полученные нанопорошки карбида вольфрама были проанализированы рентгенофазовым анализом (порошковый дифрактометр), рамановской спектроскопией и микроскопией. Выяснено, что при синтезе нанопорошков карбида вольфрама формируются различные фазы, такие как WC, W2C и WC1-x, которые объясняются параметрами электродугового разряда и распределением прекурсоров.

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Microstructure and growth mechanism of tungsten carbide coatings by atmospheric CVD

Cited by 19 publications

References 26 publications

Tungsten Carbide‐Based Materials for Electrocatalytic Water Splitting: A Review

Tungsten Carbide‐Based Materials for Electrocatalytic Water Splitting: A Review

Experimental and Numerical Study on Friction and Wear Performance of Hot Extrusion Die Materials

Исследования Наночастиц Карбида Вольфрама, Полученных Плазмохимическим Методом

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