Microstructure and strength of ultrasonic-assisted brazed joints of Si3N4/6061Al composites

Xu, Guojing; Leng, Xuesong; Jiang, Han; Xiu, Ziyang; Yan, Jiuchun

doi:10.1016/j.jmapro.2020.02.046

Cited by 24 publications

(4 citation statements)

References 35 publications

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“…Inspired by the above works, we select silicon nitride nanowires (SNs) to construct a uniformly continuous preforming reinforcement with the 3D structure. SNs have high Young’s modulus and excellent mechanical, physical, and chemical properties and are considered to be suitable reinforcement materials. , SNs have been incorporated into a wide range of matrixes, including carbon matrix and metal matrix, to form composites possessing unique properties and capabilities. − This makes SNs great candidates as reinforcement materials for the polymer matrix to manufacture composites used for hip joint replacement.…”

Section: Introductionmentioning

confidence: 99%

Balanced Mechanical and Biotribological Properties of Polymer Composites Reinforced by a 3D Interlocked Si₃N₄ Nanowire Membrane

Liu

Zhang

Nie

et al. 2022

ACS Appl. Mater. Interfaces

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Polymer composites have great potential applications in the hip joint replacement, where the combinations of high mechanical strength and excellent biotribological properties are required. In this work, a well-dispersed three-dimensional (3D) silicon nitride nanowire membrane (SNm) designed as a reinforcement and brushite (Bs) served as bioactive filler are constructed into the polymer matrix, forming SNm-reinforced Bs/polymer composites (SNm-Bs/Pm). Especially, SNm could form a 3D interlocked structure, where the ultralong silicon nitride nanowires are entangled with each other. SNm could effectively facilitate the penetration of the polymer matrix and improve the cohesion strength of the polymer, thereby promoting mechanical and biotribological properties for SNm-Bs/Pm. The performances for polymer composites are optimized by increasing the layer number of preform. By comparing SNm-Bs/Pm with one-layer preform, the tensile strength of SNm-Bs/Pm with six-layer preforms reaches 83.3 MPa with an increase of 767.7%. In addition, the friction coefficient and wear rate of SNm-Bs/Pm with six-layer preforms in fetal bovine serum medium achieve 0.06 and 0.21 × 10–14 m3(N·m)−1 and decrease by 82.4 and 72.4%, respectively. The present work provides a promising methodology of preparing interlocked SNm-reinforced polymer composites with enhanced mechanical and biotribological properties that are potential for hip joint replacement applications.

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Section: Introductionmentioning

confidence: 99%

Balanced Mechanical and Biotribological Properties of Polymer Composites Reinforced by a 3D Interlocked Si₃N₄ Nanowire Membrane

Liu

Zhang

Nie

et al. 2022

ACS Appl. Mater. Interfaces

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“…Ultrasound-assisted transient liquid phase bonding (U-TLP) is a newly developed joining method that is widely used in dissimilar alloy bonding [25][26][27]. When U-TLP is used, it is easy to break the oxide film layer of the alloys due to the acoustic plastic in solid and cavitation effects in liquid [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of AZ31B/LY12 Joints Using Zn/Ag–Cu–Zn/Zn Multi-Interlayers via Ultrasound-Assisted Transient Liquid Phase Bonding

Zhang

et al. 2022

Metals

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The use of a Zn/Ag–Cu–Zn/Zn multi-interlayer was observed to avoid the formation of Mg–Al binary intermetallic compounds (IMCs), which cause embrittlement and low strength of bonding when dissimilar metals such as Mg/Al are joined using ultrasound-assisted transient liquid phase bonding (U-TLP). The change in the microstructure and mechanical properties of the AZ31B/LY12 joints at 410, 440, and 460 °C with prolonging ultrasonic treatment (UST) time was investigated. The results showed that the diffusion of Ag and Cu was faster into the brazing seam on the LY12 side than that on the AZ31B side with increasing UST and temperature. The IMCs on both sides of the joints were transformed with the diffusion of Ag and Cu. The transformation made the fracture path shift from the AZ31B side (410, 440 °C) to the LY12 side (460 °C), and the maximum shear strength of the joints from 43.3 (410 °C) to 65.7 (440 °C) to 84.7 MPa (460 °C). The IMCs on the surface of the fracture path corresponding to the joints with optimal mechanical properties changed from Mg7Zn3+MgZn2+α-Mg (410 °C) to MgZnCu+Mg7Zn3 (440 °C) to Al2Cu (460 °C).

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“…Architecture design and optimization through the introduction of nanofillers into CC is an effective way to improve microstructure defects. This has been well exemplified by some nanofillers, such as carbon nanotubes (CNTs), carbon nanofibers (CNFs), silicon carbide nanowires (SiCnws), silicon nitride nanowires (Si 3 N 4 nws), and silicon nitride nanobelts (Si 3 N 4 nbs). − In these cases, the incorporation of the nanofillers could not only achieve nanoscale reinforcement for CC by the virtue of their nanosize but also favor PyC deposition by their high specific surface areas. − Accordingly, effective load transfer and good interfacial adhesion are achieved to perfect the resulting composites. However, the existing literature demonstrates that only a limited improvement of mechanical strength has been achieved by introducing single-component nanofillers.…”

Section: Introductionmentioning

confidence: 99%

SiC Nanowire–Si₃N₄ Nanobelt Interlocking Interfacial Enhancement of Carbon Fiber Composites with Boosting Mechanical and Frictional Properties

Zhang¹,

Zhang²,

Zhu³

et al. 2021

ACS Appl. Mater. Interfaces

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Carbon fiber composites composed of carbon fiber and pyrolytic carbon (PyC) matrix have great potential application in the brakes of aircrafts, where the combination of high mechanical strength and excellent frictional properties are required. In this work, two-component silicon-based interlocking enhancements were designed and constructed into carbon fiber composites for boosting the mechanical and frictional properties. Specially, silicon carbide nanowires (SiCnws) and silicon nitride nanobelts (Si3N4nbs) could form interlocking architectures, where SiCnws are rooted firmly on the carbon fiber surface in the radial direction and Si3N4nbs integrate the PyC matrix with carbon fibers together via a networked shape. SiCnws–Si3N4nbs not only refine the PyC matrix but also promote the bonding of the fiber/matrix interface and the cohesion strength of the PyC matrix, thus enhancing the mechanical and frictional properties. Benefiting from the SiCnws–Si3N4nbs synergistic effect and interlocking enhancement mechanism, the interlaminar shear strength and compressive strength of carbon fiber composites increased by 88.41% and 73.40%, respectively. In addition, the friction coefficient and wear rate of carbon fiber composites decreased by 39.50% and 69.88%, respectively. This work could open up an interlocking enhancement strategy for efficiently fabricating carbon fiber composites and promoting mechanical and frictional properties that could be used in the brakes of aircrafts.

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Microstructure and strength of ultrasonic-assisted brazed joints of Si3N4/6061Al composites

Cited by 24 publications

References 35 publications

Balanced Mechanical and Biotribological Properties of Polymer Composites Reinforced by a 3D Interlocked Si₃N₄ Nanowire Membrane

Balanced Mechanical and Biotribological Properties of Polymer Composites Reinforced by a 3D Interlocked Si₃N₄ Nanowire Membrane

Microstructure and Mechanical Properties of AZ31B/LY12 Joints Using Zn/Ag–Cu–Zn/Zn Multi-Interlayers via Ultrasound-Assisted Transient Liquid Phase Bonding

SiC Nanowire–Si₃N₄ Nanobelt Interlocking Interfacial Enhancement of Carbon Fiber Composites with Boosting Mechanical and Frictional Properties

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Microstructure and strength of ultrasonic-assisted brazed joints of Si3N4/6061Al composites

Cited by 24 publications

References 35 publications

Balanced Mechanical and Biotribological Properties of Polymer Composites Reinforced by a 3D Interlocked Si3N4 Nanowire Membrane

Balanced Mechanical and Biotribological Properties of Polymer Composites Reinforced by a 3D Interlocked Si3N4 Nanowire Membrane

Microstructure and Mechanical Properties of AZ31B/LY12 Joints Using Zn/Ag–Cu–Zn/Zn Multi-Interlayers via Ultrasound-Assisted Transient Liquid Phase Bonding

SiC Nanowire–Si3N4 Nanobelt Interlocking Interfacial Enhancement of Carbon Fiber Composites with Boosting Mechanical and Frictional Properties

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Product

Resources

About

Balanced Mechanical and Biotribological Properties of Polymer Composites Reinforced by a 3D Interlocked Si₃N₄ Nanowire Membrane

Balanced Mechanical and Biotribological Properties of Polymer Composites Reinforced by a 3D Interlocked Si₃N₄ Nanowire Membrane

SiC Nanowire–Si₃N₄ Nanobelt Interlocking Interfacial Enhancement of Carbon Fiber Composites with Boosting Mechanical and Frictional Properties