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Косинова, М. Л.; Rumyantsev, Yu. M.; Golubenko, A. N.; Файнер, Н. И.; Ayupov, B. M.; Dolgovesova, I. P.; Kolesov, B. A.; Каичев, В. В.; Kuznetsov, F. A.

doi:10.1023/a:1023227716045

Cited by 23 publications

(5 citation statements)

References 33 publications

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“…Several methods have been employed in fabricating graphite like BN-C compounds such as chemical vapour deposition (CVD), where typically BCl 3 /CH 3 CN gaseous mixtures have been used [8,9,10,11,12,13,14,15], mixing and ball milling of graphite/h-BN powders [4,5,16,17,18,19], solid phase nitriding [20] and solid state pyrolysis [21,22,23,24,25]. However, the progress of most of the methods used so far has been hindered by either inability to produce complete BC x N solid solutions or inability to produce them in high yields.…”

Section: Introductionmentioning

confidence: 99%

Characterization of the Materials Synthesized by High Pressure-High Temperature Treatment of a Polymer Derived t-BC2N Ceramic

et al. 2011

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Bulk B-C-N materials were synthesized under static high thermobaric conditions (20 GPa and 2,000 °C) in a multianvil apparatus from a polymer derived t-BC1.97N ceramic. The bulk samples were characterised using X-ray synchrotron radiation and analytical transmission electron microscopy in combination with electron energy loss spectroscopy. Polycrystalline B-C-N materials with a cubic type structure were formed under the applied reaction conditions, but the formation of a ternary cubic diamond-like c-BC2N compound, could not be unambiguously confirmed.

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Section: Introductionmentioning

confidence: 99%

Characterization of the Materials Synthesized by High Pressure-High Temperature Treatment of a Polymer Derived t-BC2N Ceramic

et al. 2011

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“…The presence of boron oxide in the films also contributes to a decrease in the value of n, since its refractive index is 1.45 (λ = 589 nm) [93]. Known from our previous investigation [31], the refractive index of BC x N y films deposited by the PECVD method using TMAB + NH 3 mixture at substrate temperatures from 573 to 973 K changed from 1.56 to 2.27, respectively.…”

Section: Optical Propertiesmentioning

confidence: 83%

“…Figure 8c shows the N1s spectra of the studied films. According to the literature data, the values of the binding energies for nitrogen included in the h-BN and BC x N y structure lie at 398 eV [31,80,81,84] and 398.7-399.3 eV [80,85], respectively. In the case of nitrite and nitrate groups, even higher binding energies of the N1s peak are observed in the region of 401-403 eV [40,86].…”

Section: T Dep K [C]/[b] [N]/[b] [O]/[b]mentioning

confidence: 95%

“…These compounds, including alkylamine boranes, are of special interest because the molecular structure of the initial organoboron precursor affects the chemical and phase compositions and the microstructure of deposited films [26][27][28][29][30]. They are stable under normal conditions, less toxic than volatile binary boron compounds, noncombustible, and relatively cheap [31]. One of them is trimethylamine borane (CH 3 ) 3 N•BH 3 (TMAB) [32,33].…”

Section: Introductionmentioning

confidence: 99%

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Boron Carbonitride Films with Tunable Composition: LPCVD and PECVD Synthesis Using Trimethylamine Borane and Nitrogen Mixture and Characterization

et al. 2023

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This study reports the chemical vapor deposition of amorphous boron carbonitride films on Si(100) and SiO2 substrates using a trimethylamine borane and nitrogen mixture. BCxNy films with different compositions were produced via variations in substrate temperature and type of gas-phase activation. The low-pressure chemical vapor deposition (LPCVD) and plasma-enhanced chemical vapor deposition (PECVD) methods were used. The “elemental composition—chemical bonding state—properties” relationship of synthesized BCxNy was systematically studied. The hydrophilicity, mechanical, and optical properties of the films are discussed in detail. The composition of films deposited by the LPCVD method at temperatures ranging from 673 to 973 K was close to that of boron carbide with a low nitrogen content (BCxNy). The refractive index of these films changed in the range from 2.43 to 2.56 and increased with temperature. The transparency of these films achieved 85%. LPCVD films were hydrophilic and the water contact angles varied between 53 and 63°; the surface free energy was 42–48 mN/m. The microhardness, Young’s modulus and elastic recovery of LPCVD films ranged within 24–28 GPa, 220–247 GPa, and 70–74%, respectively. The structure of the PECVD films was close to that of hexagonal boron nitride, and their composition can be described by the BCxNyOz:H formula. In case of the PECVD process, the smooth films were only produced at low deposition temperatures (373–523 K). The refractive index of these films ranged from 1.51 to 1.67. The transparency of these films achieved 95%; the optical band gap was evaluated as 4.92–5.28 eV. Unlike LPCVD films, they were very soft, and their microhardness, Young’s modulus and elastic recovery were 0.8–1.4 GPa, 25–26 GPa, and 19–28%, respectively. A set of optimized process parameters to fabricate LPCVD BCxNy films with improved mechanical and PECVD films with high transparency is suggested.

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“…Figure 4 shows the FTIR curves of the h-BN coatings. The peaks around 780 cm −1 and 1360 cm −1 of the wave number represent h-BN [27]. The peaks around 960 cm −1 , 1250 cm −1 , 1450 cm −1 and 1600 cm −1 represent e-BN.…”

Section: Structural Characterization and Mechanical Properties Of H-b...mentioning

confidence: 99%

High-Temperature Superlubricity Performance of h-BN Coating on the Textured Inconel X750 Alloy

Zeng

2023

Lubricants

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The high-temperature superlubricity performances of h-BN coatings on the nontextured and textured surface of an Inconel X750 alloy is reported in the present paper. The hardness and bond strength of the h-BN coating and alloy were investigated. The tribological properties of the X750 alloy and coatings on the X750 alloy substrate were investigated at different temperatures. The surface texture was manufactured on the surface of the X750 alloy, and then coatings were deposited on the textured surface to reduce the cracking of the coating and enhance the stability of the antifriction behaviors of the h-BN coatings. The tribotest results showed that the texture is helpful to enhance the interface thermal compatibility of the coating and substrate and store the wear debris generated during sliding. Therefore, a stable superlubricity was achieved at high temperatures, and a super low friction mechanism is also discussed.

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Cited by 23 publications

References 33 publications

Characterization of the Materials Synthesized by High Pressure-High Temperature Treatment of a Polymer Derived t-BC2N Ceramic

Characterization of the Materials Synthesized by High Pressure-High Temperature Treatment of a Polymer Derived t-BC2N Ceramic

Boron Carbonitride Films with Tunable Composition: LPCVD and PECVD Synthesis Using Trimethylamine Borane and Nitrogen Mixture and Characterization

High-Temperature Superlubricity Performance of h-BN Coating on the Textured Inconel X750 Alloy

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