Effect of sintering densification on micro-scale mechanical and tribological behaviour of niobium carbide

Machado, Izabel Fernanda; Boidi, G.; Fukumasu, Newton Kiyoshi; Tertuliano, A.J.O.; Seriacopi, Vanessa; Souza, R.M.

doi:10.1016/j.wear.2021.203958

Cited by 7 publications

(10 citation statements)

References 51 publications

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“…Calibration curves were performed before testing, according to the specifications of the triboindenter manufacturer. Machado et al [ 46 ] reported that this procedure allows for calibration as a function of penetration depth in the range of 30 to 180 nm. The load–displacement curves obtained were evaluated using the Oliver and Pharr method to determine the indentation hardness (H i ) [ 47 , 48 ].…”

Section: Methodsmentioning

confidence: 99%

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Scratch and Wear Behaviour of Co-Cr-Mo Alloy in Ringer’s Lactate Solution

et al. 2023

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Cobalt–chromium–molybdenum (Co-Cr-Mo) alloy is a material recommended for biomedical implants; however, to be suitable for this application, it should have good tribological properties, which are related to grain size. This paper investigates the tribological behaviour of a Co-Cr-Mo alloy produced using investment casting, together with electromagnetic stirring, to reduce its grain size. The samples were subjected to wear and scratch tests in simulated body fluid (Ringer’s lactate solution). Since a reduction in grain size can influence the behaviour of the material, in terms of resistance and tribological response, four samples with different grain sizes were produced for use in our investigation of the behaviour of the alloy, in which we considered the friction coefficient, wear, and scratch resistance. The experiments were performed using a tribometer, with mean values for the friction coefficient, normal load, and tangential force acquired and recorded by the software. Spheres of Ti-6Al-4V and 316L steel were used as counterface materials. In addition, to elucidate the influence of grain size on the mechanical properties of the alloy, observations were conducted via scanning electron microscopy (SEM) with electron backscatter diffraction (EBSD). The results showed changes in the structure, with a reduction in grain size from 5.51 to 0.79 mm. Using both spheres, the best results for the friction coefficient and wear volume corresponded to the sample with the smallest grain size of 0.79 mm. The friction coefficients obtained were 0.37 and 0.45, using the Ti-6Al-4V and 316L spheres, respectively. These results confirm that the best surface finish for Co-Cr-Mo alloy used as a biomedical implant is one with a smaller grain size, since this results in a lower friction coefficient and low wear.

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Section: Methodsmentioning

confidence: 99%

“…As described by Machado et al [ 46 ], the determination of H and E r followed the Oliver and Pharr method [ 48 ]. The reduced elastic modulus (E r ) of the Co-Cr-Mo alloy can be defined by Equation (5).…”

Section: Methodsmentioning

confidence: 99%

Scratch and Wear Behaviour of Co-Cr-Mo Alloy in Ringer’s Lactate Solution

et al. 2023

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“…Metallic powders are usually sintered into bearing parts with pregnant solid and/or liquid lubricants, referred to as powder metallurgy (P/M). The tribological behaviors of spark plasma sintered (SPS) niobium carbide [593] and nickel-aluminum bronze by P/M [594] method were characterized respectively.…”

Section: D Printed Materials and Sintered Materialsmentioning

confidence: 99%

A review of advances in tribology in 2020–2021

Meng

et al. 2022

Friction

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Around 1,000 peer-reviewed papers were selected from 3,450 articles published during 2020–2021, and reviewed as the representative advances in tribology research worldwide. The survey highlights the development in lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology, providing a show window of the achievements of recent fundamental and application researches in the field of tribology.

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“…The TMC family is composed of carbides of Ti, V, and Nb as early transition metals and is widely explored for its sensing, energy storage, catalysis, and energy conversion applications. , Among these carbides, niobium carbide (NbC x ) is reported to be suitable for electrode materials in electrochemical and catalytic reactions in addition to its industrial applications owing to the supreme mechanics and high melting point . Based on their structural and chemical characteristics, MXenes or TMCs have been examined for a range of applications, including electrodes for Li ion/LiS batteries, proton exchange membranes for fuel cell technology, desalination, electromagnetic interference shielding, biosensors, and antibacterial activities .…”

Section: Introductionmentioning

confidence: 99%

“…10,11 Among these carbides, niobium carbide (NbC x ) is reported to be suitable for electrode materials in electrochemical and catalytic reactions 12 in addition to its industrial applications owing to the supreme mechanics and high melting point. 13 Based on their structural and chemical characteristics, MXenes or TMCs have been examined for a range of applications, including electrodes for Li ion/LiS batteries, proton exchange membranes for fuel cell technology, desalination, electromagnetic interference shielding, biosensors, and antibacterial activities. 14 TMCs' unique properties include low resistivity (metallic), high melting point, and strong electrochemical activity for energy storage and catalysis.…”

Section: ■ Introductionmentioning

confidence: 99%

Anaerobe Syntrophic Co-culture-Mediated Green Synthesis of Ultrathin Niobium Carbide (NbC) Sheets for Flexoelectricity Generation

Mahle

Mahapatra

Singh

et al. 2022

ACS Sustainable Chem. Eng.

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Niobium carbide (NbC x )-based materials have garnered significant attention in energy-and power-based applications. The physiochemistry-mediated preparation of two-dimensional (2D) NbC structures is often limited by extremely high-temperature and -pressure reaction conditions conjugated with toxic chemicals. In the present study, a unique biobased strategy, utilizing a solid−gas reaction, is developed, which involves the carburization of niobium salt (NbCl 5 )-based oxides using methane (CH 4 ) and other metabolic gases produced by methanogen syntrophic culture. Thermodynamic calculations were performed to comprehend the reaction conditions of the biosystem during NbC formation. The bioprepared NbC sheets were found to be ∼10 nm thin and were studied for their potential in energy harvesting applications. The strain-induced charge generation was evaluated by fabricating a flexoelectric energy harvester with NbC sheets as a flexoelectric material. The maximum power output was ∼2.64 mW/m 2 for 8.8 N applied force. We obtained clear evidence of flexoelectricity in NbC using Raman analysis. Finally, external pressure-, magnetic force-, and temperature-dependent responses were recorded to visualize the practical applications of NbC-based flexible flexoelectric nanogenerators in wearable electronics and sensing.

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Effect of sintering densification on micro-scale mechanical and tribological behaviour of niobium carbide

Cited by 7 publications

References 51 publications

Scratch and Wear Behaviour of Co-Cr-Mo Alloy in Ringer’s Lactate Solution

Scratch and Wear Behaviour of Co-Cr-Mo Alloy in Ringer’s Lactate Solution

A review of advances in tribology in 2020–2021

Anaerobe Syntrophic Co-culture-Mediated Green Synthesis of Ultrathin Niobium Carbide (NbC) Sheets for Flexoelectricity Generation

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