Investigation of structure and mechanical properties of plasma vapor deposited nanocomposite TiBN films

Han, Bo; Neena, D; Wang, Zesong; Kondamareddy, Kiran Kumar; Li, Na; Zuo, Wenbin; Shen, Yan; LIU, Chuansheng; Fu, Dejun

doi:10.1088/2058-6272/aa57eb

Cited by 7 publications

(4 citation statements)

References 42 publications

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“…For duty cycles higher than 60% of P, the three element concentrations tend to stabilize. The reverse evolution of nitrogen and boron contents vs. nitrogen supply is in agreement with results previously reported by Pierson et al [37] and Han et al [38], who also sputter-deposited Ti-B-N films from a TiB 2 target in an Ar + N 2 atmosphere. WE also observed the same kind of saturation for Ti, B and N atomic concentrations as the nitrogen flow rate increased (stabilization of the concentrations for nitrogen injections depending on the operating conditions).…”

Section: Composition and Structuresupporting

confidence: 92%

“…A percolation threshold of φ c = 0.45 was obtained, which corresponds to dc = 55% of P. Based on the chemical compositions determined from XPS analyses (Figure 3), this duty cycle produced comparable B and N concentrations in Ti-B-N films. This result supports Mayrhofer et al, who claimed that this range of compositions matches with a film composed of two nanoscale phases (2-3 nm) encapsulated by a high-volume fraction (about 50%) of a disordered phase [38,41].…”

Section: Electrical Propertiessupporting

confidence: 89%

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Tunable Electrical Properties of Ti-B-N Thin Films Sputter-Deposited by the Reactive Gas Pulsing Process

et al. 2022

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Titanium-boron-nitrogen (Ti-B-N) thin films were deposited by RF reactive magnetron sputtering using a titanium diboride (TiB2) target in an argon + nitrogen mixture. The argon mass flow rate was kept constant, whereas that of nitrogen was pulsed during the deposition. A constant pulsing period of P = 10 s was used, and the introduction time of the nitrogen gas (duty cycle (dc)) was systematically varied from dc = 0 to 100% of the pulsing period. This reactive gas pulsing process allowed the deposition of Ti-B-N thin films with various boron and nitrogen concentrations. Such adjustable concentrations in the films also led to changes in their electronic transport properties. Boron and nitrogen contents exhibited a reverse evolution as a function of the nitrogen duty cycle, which was correlated with the transition from a metallic to semiconducting-like behavior. A percolation model was applied to the electrical conductivity as a function of the nitrogen pulsing parameters, assuming some correlations with the evolution of the Ti-B-N thin film nanostructure.

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Section: Composition and Structuresupporting

confidence: 92%

Section: Electrical Propertiessupporting

confidence: 89%

Tunable Electrical Properties of Ti-B-N Thin Films Sputter-Deposited by the Reactive Gas Pulsing Process

et al. 2022

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“…Moreover, ternary nitrides coatings such as TiSiN, VCN, TiBN, CrBN and WBN have all been fabricated recently and have exhibited enhanced mechanical properties, tribological properties, thermal stability, chemical inertness, wear resistance and fracture toughness [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Corrosion, oxidation and high-temperature tribological properties of Ti–B–N coatings

Asempah

et al. 2019

Surface Engineering

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Ti-B-N (nc-TiN/ a-BN) composite coatings with various boron contents were deposited by magnetron sputtering. nano-indentation, ball-on-disc dry sliding X-ray diffraction, and, Raman spectroscopy was used in evaluating the compositional, mechanical and tribological properties of these coatings. The corrosion behaviour of the Ti-B-N coatings was assessed by the electrochemical potentiodynamic polarisation method in a 3 mol-% of NaCl solution. The coefficient of friction (CoF) of the coatings initially increased to 1.0 when the test temperature was 200°C, but a further increase in temperature to 700°C resulted in a decrease in the CoF value to ∼0.18 which was due to the presence of Magneli-type Ti n O 2n−1 oxides. In contrast to the CoF, there was a consistent increase in wear rate when the temperature was increased; the highest wear rate was obtained at 700°C. The B incorporated coatings exhibited improvement in both oxidation and corrosion resistance properties.

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“…Plasma is a known tool for the generation of enormous heat energy, with temperatures ranging from 5000-8000 K (4727 °C-7727 °C), which is useful for melting refractory metals and alloys [2][3][4][5]. Increasing attention is being paid to applications of plasma smelting for mineral processing and plasma spray coating for the surface modification of metals, which is gaining popularity [6][7][8][9][10][11][12][13][14][15][16][17]. The amount of heat generation in plasma arc depends on the types of current, current density, the ionization behavior of different gases, types of plasma, etc [18].…”

Section: Introductionmentioning

confidence: 99%

Behavior of an indigenously fabricated transferred arc plasma furnace for smelting studies

Mandal¹,

Dishwar²,

Sinha³

2018

Plasma Sci. Technol.

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The utilization of industrial solid waste for metal recovery requires high-temperature tools due to the presence of silica and alumina, which is reducible at high temperature. In a plasma arc furnace, transferred arc plasma furnace (TAP) can meet all requirements, but the disadvantage of this technology is the high cost. For performing experiments in the laboratory, the TAP was fabricated indigenously in a laboratory based on the different inputs provided in the literature for the furnace design and fabrication. The observed parameters such as arc length, energy consumption, graphite electrode consumption, noise level as well as lining erosion were characterized for this fabricated furnace. The nitrogen plasma increased by around 200 K (200°C) melt temperature and noise levels decreased by ∼10 dB compared to a normal arc. Hydrogen plasma offered 100 K (100°C) higher melt temperature with ∼5 dB higher sound level than nitrogen plasma. Nitrogen plasma arc melting showed lower electrode and energy consumption than normal arc melting, whereas hydrogen plasma showed lower energy consumption and higher electrode consumption in comparison to nitrogen plasma. The higher plasma arc temperature resulted in a shorter meltdown time than normal arc with smoother arcing. Hydrogen plasma permitted more heats, reduced meltdown time, and lower energy consumption, but with increased graphite consumption and crucible wear. The present study showed that the fabricated arc plasma is better than the normal arc furnace with respect to temperature generation, energy consumption, and environmental friendliness. Therefore, it could be used effectively for smelting-reduction studies.

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Investigation of structure and mechanical properties of plasma vapor deposited nanocomposite TiBN films

Cited by 7 publications

References 42 publications

Tunable Electrical Properties of Ti-B-N Thin Films Sputter-Deposited by the Reactive Gas Pulsing Process

Tunable Electrical Properties of Ti-B-N Thin Films Sputter-Deposited by the Reactive Gas Pulsing Process

Corrosion, oxidation and high-temperature tribological properties of Ti–B–N coatings

Behavior of an indigenously fabricated transferred arc plasma furnace for smelting studies

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