Thermal, mechanical and electrical properties of hard B4C, BCN, ZrBC and ZrBCN ceramics

Houška, Jiří; Steidl, Petr; Vlček, Jaroslav; Martan, J.

doi:10.1016/j.ceramint.2015.11.115

Cited by 20 publications

(7 citation statements)

References 36 publications

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“…13,14 These properties have been found to be attractive for various applications, including UV detectors, 15 supercapacitors, 16 field-effect transistors (FET), 17 biological sensors, 18 antiwear protective coatings, 19,20 and cutting tools. 21 2D graphene, BN, and BCN have been thoroughly studied, and their 3D porous foam structures have opened new frontiers for these materials as they allow new applications with greater design flexibility. These foams integrate the 2D material that they consist of to form a configuration of a 3D network composed of hollow thin-wall layered branches and junctions with large surface area and low mass.…”

Section: ■ Introductionmentioning

confidence: 99%

Multiscale Elasticity of 3D Boron Carbonitride Foam for Tunable Mechanical Resisting Devices

Jahn,

Levavi,

Pradhan

et al. 2023

ACS Appl. Nano Mater.

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Boron carbonitride (BCN) foam is a three-dimensional material with a hierarchical structure, which has promising potential due to its semiconducting properties and high surface area. However, the lack of understanding of its elastic properties impedes its large-scale integration into advanced applications. We grew BCN foam samples with different atomic compositions and studied their microscopic- and macroscopic-scale mechanics, which revealed that samples with high concentrations of carbon have lower elastic resistance across different scales (i.e., lower Young’s moduli). While the microscopic elasticity is dominated by interlayer interactions, the macroscopic elasticity is also strongly influenced by the buckling and fracturing of the three-dimensional structure of the BCN foam, and thus, the macroscopic Young’s moduli are lower than the microscopic ones. Our findings shed light on the mechanism that underlies the multiscale mechanics of BCN foam and pave the path toward its integration into tunable mechanical resisting devices such as flexible electronic devices and resonators.

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Section: ■ Introductionmentioning

confidence: 99%

Multiscale Elasticity of 3D Boron Carbonitride Foam for Tunable Mechanical Resisting Devices

Jahn,

Levavi,

Pradhan

et al. 2023

ACS Appl. Nano Mater.

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“…For example, compared with the TiCN, the addition of B can improve the oxidation resistance and thermal stability of matrix materials 8–10 and makes the fracture toughness better than Ti(C)N 11 . Therefore, many researchers studied MiBCN materials to discuss their excellent performances 12–23 …”

Section: Introductionmentioning

confidence: 99%

“…For example, compared with the TiCN, the addition of B can improve the oxidation resistance and thermal stability of matrix materials [8][9][10] and makes the fracture toughness better than Ti(C)N. 11 Therefore, many researchers studied MiBCN materials to discuss their excellent performances. [12][13][14][15][16][17][18][19][20][21][22][23] Studies showed that the selection of metal elements has an important influence on the material structure and thus on the material properties. For example, Houska et al 6 prepared the hard nanocrystalline conductive film MBCN (M = Ti, Zr, Hf) by pulsed DC reactive magnetron sputtering.…”

Section: Introductionmentioning

confidence: 99%

Ta(B, C, N) and (Ta, Mi)(B, C, N) (Mi = Nb, W) ceramics by high‐energy ball milling: processing and solution mechanisms

Guan

Yang

et al. 2022

J Am Ceram Soc.

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In order to study the solid‐solution process between amorphous BCN and metal Ta, Ta(B, C, N), (Ta, Nb)(B, C, N), and (Ta, W)(B, C, N) ceramics were prepared by high‐energy ball milling, and their phase composition, microstructures, and binding bonds have been analyzed. The results show that all the three ceramics are hard agglomeration state, formed by stacking of nanoparticles. The mechanical alloying process is accompanied by the formation of chemical bonds, such as B–Ta, N–Ta, C–Ta, and O–Ta for Ta(B, C, N) ceramic, and the order of solid solution is C > N > B. When heated at 1500°C, a second diboride phase precipitates from (Ta, Nb)(B, C, N) ceramic, whereas the second phase of WC gradually dissolved from (Ta, W)(B, C, N) ceramic. This work provides theoretical and data supporting to analyze the solid‐solution process of Ta(B, C, N) ceramic.

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“…To overcome these shortcomings, the application of a-BCN films on iron-based material has been explored in recent years. a-BCN film has nearly the same properties as the DLC film, is also inert against steel material [ 10 , 11 ], and has an even superior tribological property [ 12 , 13 ] and thermal stability [ 14 , 15 , 16 ]. In particular, a weak dependence on the relative humidity of wear and friction coefficients [ 13 ], and excellent sliding characteristics even in a high temperature environment of 300 °C [ 16 ] are incredible features of a-BCN film as compared to DLC film.…”

Section: Introductionmentioning

confidence: 99%

Structural and Mechanical Properties of a-BCN Films Prepared by an Arc-Sputtering Hybrid Process

et al. 2021

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Amorphous boron carbon nitride (a-BCN) films exhibit excellent properties such as high hardness and high wear resistance. However, the correlation between the film structure and its mechanical properties is not fully understood. In this study, a-BCN films were prepared by an arc-sputtering hybrid process under various coating conditions, and the correlations between the film’s structure and mechanical properties were clarified. Glow discharge optical emission spectroscopy, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, and Raman spectroscopy were used to analyze the structural properties and chemical composition. Nanoindentation and ball-on-disc tests were performed to evaluate the hardness and to estimate the friction coefficient and wear volume, respectively. The results indicated that the mechanical properties strongly depend on the carbon content in the film; it decreases significantly when the carbon content is <90%. On the other hand, by controlling the contents of boron and nitrogen to a very small amount (up to 2.5 at.%), it is possible to synthesize a film that has nearly the same hardness and friction coefficient as those of an amorphous carbon (a-C) film and better wear resistance than the a-C film.

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Thermal, mechanical and electrical properties of hard B4C, BCN, ZrBC and ZrBCN ceramics

Cited by 20 publications

References 36 publications

Multiscale Elasticity of 3D Boron Carbonitride Foam for Tunable Mechanical Resisting Devices

Multiscale Elasticity of 3D Boron Carbonitride Foam for Tunable Mechanical Resisting Devices

Ta(B, C, N) and (Ta, Mi)(B, C, N) (Mi = Nb, W) ceramics by high‐energy ball milling: processing and solution mechanisms

Structural and Mechanical Properties of a-BCN Films Prepared by an Arc-Sputtering Hybrid Process

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