ZrB2 grains synthesized on graphite by chemical vapor deposition

Zhou, Changling; Wang, Peng; Wei, Chuncheng; Han, Wenbo; Zhang, Xinghong; Xu, Baosheng

doi:10.1016/j.jallcom.2016.12.244

Cited by 11 publications

(3 citation statements)

References 22 publications

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“…The earliest reports of ZrB 2 deposition utilized the ZrCl 4 -BCl 3 -H 2 system [190,191] or ZrCl 4 -BBr 3 -H 2 [136]. The all-chloride system continues to be one of the most common processes employed [183,192,193]. A complementary system has been demonstrated for the deposition of TiB 2 (i.e., TiCl 4 -BCl 3 -H 2 ) [184,194,195], as well as TiCl 4 -B 2 H 6 -H 2 [185].…”

Section: Zirconium Diboridementioning

confidence: 99%

“…In the all-halide deposition of ZrB 2 , multiple researchers have suggested that BCl 3 reduction is independent of zirconium [183,186,193,198], implying that zirconium and boron deposit independently and not cooperatively. The reduction of ZrCl 4 in the presence of H 2 has been discussed previously, vide supra, with undefined mechanics.…”

Section: Zrb 2 From Independent Precursorsmentioning

confidence: 99%

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Chemical Vapor Deposition of Zirconium Compounds: A Review

Lamm

Mitchell

2023

Coatings

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Coatings of zirconium compounds are used in a wide variety of fields, yet an understanding and descriptions of deposition mechanisms are scant in the public literature. The mechanisms of deposition for metallic zirconium, ZrC, ZrN, ZrO2, ZrB2, and zirconium silicides are discussed based on the direct vapor deposition research of those compounds where possible or compared to complementary titanium systems when direct research is lacking. Both inorganic and organometallic deposition systems are discussed. As a class of compounds, an understanding of the vapor deposition mechanisms can be significantly improved by investigations on metallic zirconium deposition by zirconium halides and hydrogen and by in situ analysis techniques such as Fourier-transform infrared (FTIR) spectroscopy or x-ray photoelectron spectroscopy (XPS).

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Section: Zirconium Diboridementioning

confidence: 99%

Section: Zrb 2 From Independent Precursorsmentioning

confidence: 99%

Chemical Vapor Deposition of Zirconium Compounds: A Review

Lamm

Mitchell

2023

Coatings

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“…Therefore, it is necessary to establish a method that can effectively improve the mechanical properties, high temperature resistance, and friction properties of the multilayer. Among many materials, ZrB 2 has the advantages of a high melting point, high hardness, low density, excellent corrosion resistance and oxidation resistance [10][11][12][13][14][15][16], and it is a promising ultra-high temperature ceramic material. Over the years, despite extensive research on the microstructure and mechanical properties of ZrB 2 [17,18], its application was still limited by its inherent brittleness, low fracture toughness, and unreliable high temperature performance [19,20].…”

Section: Introductionmentioning

confidence: 99%

Modulation Effect of Hardness on the Friction Coefficient and Its Mechanism Analysis of ZrB2/Mo Multilayers Synthesized by Magnetron Sputtering

Zhang

Dong

et al. 2021

Crystals

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ZrB2/Mo multilayers were prepared by the magnetron sputtering technique on Si (100) and Al2O3 (001) substrates. The friction behavior and wear mechanism of the multilayers were tested at variable modulation ratios (tZrB2:tMo) of 1:1 to 8:1 at different temperatures. Under the influence of an effective modulation ratio and temperature, the friction coefficient and hardness of ZrB2/Mo multilayers showed an almost opposite change rule, that is, the higher the hardness, the lower the friction coefficient. The hardness and elastic modulus reached the maximum value (26.1 GPa and 241.99 GPa) at tZrB2:tMo = 5:1 and the corresponding friction coefficient was 0.86. Meanwhile, the hardness and average friction coefficient at 500 °C were, respectively, 8.9 GPa and 1.23. First-principles calculations of the interface model of ZrB2 (001)/Mo (110) showed that the ionic bonds and covalent bonds at the interface can effectively improve the viscosity of the multilayer and the stability of the interface, and thus increase the hardness. This also indicated that the variation of the friction coefficient was mainly determined by the stability of the interface in the ZrB2/Mo multilayers.

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Highly Conductive and Stable Composite Polymer Electrolyte with Boron Nitride Nanotubes for All‐Solid‐State Lithium Metal Batteries

He,

Liu,

Xiao

et al. 2024

Small

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All‐solid‐state lithium metal batteries (ASSLMBs) have emerged as the most promising next‐generation energy storage devices. However, the unsatisfactory ionic conductivity of solid electrolytes at room temperature has impeded the advancement of solid‐state batteries. In this work, a multifunctional composite solid electrolyte (CSE) is developed by incorporating boron nitride nanotubes (BNNTs) into polyvinylidene fluoride‐hexafluoropropylene (PVDF‐HFP). BNNTs, with a high aspect ratio, trigger the dissociation of Li salts, thus generating a greater population of mobile Li+, and establishing long‐distance Li+ transport pathways. PVDF‐HFP/BNNT exhibits a high ionic conductivity of 8.0 × 10−4 S cm−1 at room temperature and a Li+ transference number of 0.60. Moreover, a Li//Li symmetric cell based on PVDF‐HFP/BNNT demonstrates robust cyclic performance for 3400 h at a current density of 0.2 mA cm−2. The ASSLMB formed from the assembly of PVDF‐HFP/BNNT with LiFePO4 and Li exhibits a capacity retention of 93.2% after 850 cycles at 0.5C and 25 °C. The high‐voltage all‐solid‐state LiCoO2/Li cell based on PVDF‐HFP/BNNT also exhibits excellent cyclic performance, maintaining a capacity retention of 96.4% after 400 cycles at 1C and 25 °C. Furthermore, the introduction of BNNTs is shown to enhance the thermal conductivity and flame retardancy of the CSE.

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ZrB2 grains synthesized on graphite by chemical vapor deposition

Cited by 11 publications

References 22 publications

Chemical Vapor Deposition of Zirconium Compounds: A Review

Chemical Vapor Deposition of Zirconium Compounds: A Review

Modulation Effect of Hardness on the Friction Coefficient and Its Mechanism Analysis of ZrB2/Mo Multilayers Synthesized by Magnetron Sputtering

Highly Conductive and Stable Composite Polymer Electrolyte with Boron Nitride Nanotubes for All‐Solid‐State Lithium Metal Batteries

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