Effect of interfacial stability on microstructure and properties of carbon fiber reinforced aluminum matrix composites

Si, Hongli; Zhou, Qiwen; Zhou, Shan; Zhang, Jie; Liu, Wenjie; Gao, Guanghui; Wang, Zimu; Hou, Pengqing; Qu, Yingdong; Li, Guanglong

doi:10.1016/j.surfin.2023.102816

Cited by 6 publications

(2 citation statements)

References 38 publications

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“…Figure a shows the diffusion trend of Ni atoms into Al. Since the radii of Ni and Al atoms are 1.246 and 1.43 Å, respectively, Ni atoms with small radius are more likely to diffuse into Al atoms with large radii. , Figure b shows the diffusion interface between Al and Cu. Compared with Ni, the diffusion distance of Cu atoms is farther, and the diffusion amount is larger under the same conditions.…”

Section: Resultsmentioning

confidence: 99%

Mechanism of Cu Effect on Energy Release of Al/Ni/Cu Energetic Composites

Wang,

Xiong,

Chang

et al. 2024

J. Phys. Chem. C

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The improvement of mechanical properties and the reduction of the reaction energy release rate can make Al/Ni energetic composites have better penetration as fragment materials. In this paper, the influence mechanism of the addition and content of Cu particles on the mechanical properties and energy release of Al/Ni energetic composites has been studied in detail. The Cu deposited on the Al−Ni interface hinders the direct contact between Al and Ni and the rapid exothermic reaction, which increases the initial reaction temperature of Al/Ni energetic composites from 427 to 516 °C. However, the addition of Cu can significantly improve the plasticity of energetic composites. When the Cu content increased to 20%, the elongation of the composite increased by 29.7%. In the steady-state exothermic reaction process of Al/Ni/Cu energetic composites, Cu will hinder the solid− solid interface reaction between Al and Ni, enhance the sensitivity of the initial reaction, and reduce the rate of the exothermic reaction. In the process of shock-induced chemical reaction (SICR), Cu does not only participate in the exothermic reaction but also the hindrance of Cu particles leads to the decrease of the reaction rate. When the Cu content is 10%, the duration of the shockinduced chemical reaction is extended from 160 to 250 ms. The research on the energy release mechanism of Al/Ni/Cu energetic composites under steady-state heating and high-speed impact will provide an important theoretical basis for the practical application of this material.

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Section: Resultsmentioning

confidence: 99%

Mechanism of Cu Effect on Energy Release of Al/Ni/Cu Energetic Composites

Wang,

Xiong,

Chang

et al. 2024

J. Phys. Chem. C

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“…Additionally, it has been observed that under identical preparation processes, the properties of composites can vary significantly depending on the choice of interfacial layer. 20 Furthermore, it is well-established that the TC of composites is influenced by various factors, including different preparation processes, volume fractions, and types of diamonds.…”

Section: Introductionmentioning

confidence: 99%

Effects of different element coatings on the interface characteristics and thermal conductivity of vacuum-sintered diamond/Cu composites

Zhou,

Bolzoni,

Yang

2024

Journal of Vacuum Science &Amp; Technology A

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The interface structure holds paramount significance in enhancing the thermal conductivity (TC) of diamond/Cu composites, positioning them as a promising candidate for thermal management applications. Diamond/Cu composites (55% volume fraction) with three distinct interfacial carbides were fabricated via sintering at 950 °C using Cu and diamond powder coated with Ti, Cr, and W. During the sintering process, interfacial layers of TiC, Cr3C2, and W2C carbides formed at the composite interfaces. The findings reveal that the interfacial bonding strength among these three composites adheres to the following hierarchy: Ti-D/Cu exceeds Cr-D/Cu, which surpasses W-D/Cu. This hierarchy stems from the varying degrees of carbide coating integrity attained at 950 °C. Furthermore, the coating morphology differs on the diamond-{100} and -{111} crystal planes. Notably, among the interfacial carbides, TiC coating exhibits the most compact and contiguous structure postsintering. Consequently, Ti-D/Cu composites boast the highest density, reaching 95.49%, along with a remarkable TC of 317.66 W/mK. A comparative analysis of the fracture morphology of these composites reveals that Ti-D/Cu, characterized by the most robust interfacial bonding, exhibits a intransgranular fracture mechanism. This study offers profound insights and theoretical implications for the interface design of diamond/Cu composites, paving the way for their effective utilization in heat dissipation materials.

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Interfacial property enhancement of carbon fiber/epoxy composites via constructing a gradual modulus interphase with a waterborne bio‐based spiro diacetal epoxy emulsion

Deng,

Ma,

Sun

et al. 2024

Polymer Composites

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In this article, to explore the utilization of bio‐based epoxy resin in the preparation of sizing agents for carbon fibers (CFs), a bio‐based epoxy emulsion (S‐P‐S) derived from spiro diacetal epoxy (SDE) resin was prepared and compared to the traditional diglycidyl ether of bisphenol A (DGEBA) based emulsion (D‐P‐D) and a mixed emulsion of S‐P‐S and D‐P‐D (S‐P‐S&D‐P‐D). The CF sized with S‐P‐S (CF‐(S‐P‐S)) showed improved surface oxygen content (22.86%) and roughness (40.9 nm), enhancing wettability and interfacial bonding between the fiber and the matrix. Nanoindentation test and AFM results showed the enhanced interfacial stiffness and a gradual modulus interphase with a thickness of 381 nm in CF‐(S‐P‐S) reinforced epoxy resin composite (CF‐(S‐P‐S)/EP). Therefore, the resulting CF‐(S‐P‐S)/EP composite possesses the best mechanical properties, with the transverse fiber bundle tensile (TFBT) strength of 27.3 ± 1.45 MPa and the interfacial shear strength (IFSS) of 85.6 ± 8.26 MPa. These results highlight the potential of the SDE‐based emulsion (S‐P‐S) to enhance the interfacial properties and mechanical performance of CF/EP composite, offering a sustainable alternative to conventional petroleum‐based epoxy resins.Highlights Emulsion (S‐P‐S) was prepared using spiro diacetal epoxy (SDE) for carbon fiber sizing. Properties of S‐P‐S sized CF (CF‐(S‐P‐S)) and its composite were evaluated. Spiro diacetal structure created a gradual modulus interphase in CF‐(S‐P‐S)/EP. The interfacial properties of the CF‐(S‐P‐S)/EP composite were greatly improved. Bio‐based SDE resin showed promise for optimizing carbon fiber composite interphase.

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Effect of interfacial stability on microstructure and properties of carbon fiber reinforced aluminum matrix composites

Cited by 6 publications

References 38 publications

Mechanism of Cu Effect on Energy Release of Al/Ni/Cu Energetic Composites

Mechanism of Cu Effect on Energy Release of Al/Ni/Cu Energetic Composites

Effects of different element coatings on the interface characteristics and thermal conductivity of vacuum-sintered diamond/Cu composites

Interfacial property enhancement of carbon fiber/epoxy composites via constructing a gradual modulus interphase with a waterborne bio‐based spiro diacetal epoxy emulsion

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