Tensile strength, oxidation resistance and wettability of carbon fibers coated with a TiC layer using a molten salt method

Dong, Zhijun; Li, X.K.; Yuan, Guanming; Cui, Zhengwei; Cong, Ye; Westwood, Aidan

doi:10.1016/j.matdes.2013.02.084

Cited by 27 publications

(7 citation statements)

References 22 publications

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“…The loss of strength depends largely on the deposition method. Thus, when a titanium carbide layer with a thickness of 200 nm is formed using the molten salt method, the loss of strength reaches 60% [ 20 ]. The CVD deposition also results in quite a large loss in the fiber strength.…”

Section: Discussionmentioning

confidence: 99%

“…An even lower loss of strength of about 17% was achieved by the authors of [ 1 ] using the sol-gel immersion method. This effect of the coating method is most likely due to the chemical interaction between the fiber and the precursors forming the coating as in [ 20 ]. This assumption is confirmed by the results mentioned in [ 21 , 22 , 23 ] showing a decrease in the loss of strength with a decreasing temperature of the deposition process.…”

Section: Discussionmentioning

confidence: 99%

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Heat Treatment Effect on the Phase Composition of the Silica Electrochemical Coating and the Carbon Fiber Strength

et al. 2021

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This work is devoted to the study of the chemical and phase composition of a carbon fiber coating obtained by the electrochemical sol-gel method. The experimental data obtained using several independent complementary methods, including X-ray phase analysis, thermogravimetric and differential thermal analysis, scanning electron microscopy and elemental analysis, and X-ray photoelectron spectroscopy, are in good agreement with each other. It was found that the resulting coating consists of amorphous silicon oxide and crystalline potassium carbonate. Heating above 870 °C leads to the crystallization of cristobalite from amorphous silicon dioxide. At a temperature of about 870 °C, the coating acquires a smooth surface, and heating above 1170 °C leads to its destruction. Thus, the optimum temperature for the heat treatment of the coating is about 870 °C. The loss of strength of carbon fiber at each stage of coating was estimated. A full coating cycle, including thermal cleaning from the sizing, coating, and heat treatment, results in a loss of fiber strength by only 11% compared to the initial state.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Heat Treatment Effect on the Phase Composition of the Silica Electrochemical Coating and the Carbon Fiber Strength

et al. 2021

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“…[ 47,48 ] By adjusting heating temperature and duration, different metal carbide coatings with controllable thickness can be obtained through molten salt synthesis. [ 42,49–52 ]…”

Section: Binary Non‐oxidesmentioning

confidence: 99%

Advances in Molten Salt Synthesis of Non‐oxide Materials

Song

Che

et al. 2022

Energy & Environ Materials

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The properties of non‐oxide materials are continuously revealed, and their applications in the fields of ceramics, energy, and catalysis are increasingly extensive. Regardless of the traditional binary materials or the MAX phases, the preparation methods, which are environmentally friendly, efficient, economical, and easy to scale‐up, have always been the focus of attention. Molten salt synthesis has demonstrated unparalleled advantages in achieving non‐oxide materials. In addition, with the development of the process in molten salt synthesis, it also shows great potential in scale‐up production. In this review, the recent progress of molten salt synthesis in the preparation of binary non‐oxide and MAX phase is reviewed, as well as some novel processes. The reaction mechanisms and the influence of synthetic conditions for certain materials are discussed in detail. The paper is finalized with the discussion of the application prospect and future research trends of molten salt synthesis in non‐oxide materials.

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“…Both effects, individually or combined, could explain the dense coating obtained at high temperatures. Others have reported consolidated coatings at temperatures above 900 ºC in different salts [18,26].…”

Section: Effect Of Temperature On Tic X Coating Composition and Morphmentioning

confidence: 99%

Design of tailored oxide-carbide coating on carbon fibers for a robust copper/carbon interphase

Constantin

Fan

Zou

et al. 2020

Carbon

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The lack of robust interphases between carbon and most metals prevent the exploration of the full scope potential of carbon-based metal matrix composites. Here, we demonstrated a scalable and straightforward way to produce strong interphase between copper (Cu) and carbon fibers (CFs) by designing a tailored titanium oxide-carbide coating (TiO y-TiC x) on CFs in a molten salt process. The oxide-carbide composition in the graded layer strongly depends on the coating temperature (800-950 ºC). A coating with a high TiO y content obtained at a low coating temperature (800 ºC) contributes to better molten-Cu wetting and strong adhesion energy between CFs and Cu during a subsequent exposure at 1200 ºC. The Cu wetting angle for the TiO y-TiC x-CF sample obtained at 800 ºC was ~80º ± 5º with a Cu surface coverage of ~50% versus ~115º and ~10% for the TiC x-CF sample made at 950 ºC. The kinetic analysis of the coating process step by step suggests a growth rate limited by the mass-transfer through the coated layer. This method provides a novel approach to improve the thermal conductivity of Cu/C composite for thermal management applications.

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Tensile strength, oxidation resistance and wettability of carbon fibers coated with a TiC layer using a molten salt method

Cited by 27 publications

References 22 publications

Heat Treatment Effect on the Phase Composition of the Silica Electrochemical Coating and the Carbon Fiber Strength

Heat Treatment Effect on the Phase Composition of the Silica Electrochemical Coating and the Carbon Fiber Strength

Advances in Molten Salt Synthesis of Non‐oxide Materials

Design of tailored oxide-carbide coating on carbon fibers for a robust copper/carbon interphase

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