Effects of La and Ce on microstructure and properties of SiC/Al composites

Liu, Qiuyuan; Wang, Feng; Qiu, Xiaopan; An, Di; He, Z. Y.; Zhang, Qifu; Xie, Zhihui

doi:10.1016/j.ceramint.2019.09.040

Cited by 18 publications

(10 citation statements)

References 16 publications

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“…In addition, CeO 2 reacts with impurities in the remelted layer in the HCPEB action zone and weakens the local stress concentration in the brittle phase melt pool. It also reduces the surface tension, leading to a smaller contact angle between Al and SiC, which is conducive to the elimination of pores and greatly improves the surface microstructure [ 2 ].…”

Section: Resultsmentioning

confidence: 99%

“…Composite materials have emerged as an indispensable and important part of the wear-resistant field, such as SiC particle-reinforced aluminum matrix composite with high hardness and good wear resistance. It is a comprehensive composite of excellent friction materials with promising applications [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. It has been used to some extent in engine pistons and cylinder liners in high-speed train brake discs, automobile brake discs, and sliding bearing materials.…”

Section: Introductionmentioning

confidence: 99%

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Effect of High Current Pulsed Electron Beam (HCPEB) on the Organization and Wear Resistance of CeO2-Modified Al-20SiC Composites

et al. 2023

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This paper investigates the joint effect of high current pulsed electron beam (HCPEB) and denaturant CeO2 on improving the microstructure and properties of Al-20SiC composites prepared by powder metallurgy. Grazing Incidence X-ray Diffraction (GIXRD) results indicate the selective orientation of aluminum grains, with Al(111) crystal faces showing selective orientation after HCPEB treatment. Casting defects of powder metallurgy were eliminated by the addition of CeO2. Scanning electron microscopy (SEM) results reveal a more uniform distribution of hard points on the surface of HCPEB-treated Al-20SiC-0.3CeO2 composites. Microhardness and wear resistance of the Al-20SiC-0.3CeO2 composites were better than those of the Al matrix without CeO2 addition at the same number of pulses. Sliding friction tests indicate that the improvement of wear resistance is attributed to the uniform dispersion of hard points and the improvement of microstructure on the surface of the matrix after HCPEB irradiation. Overall, this study demonstrates the potential of HCPEB and CeO2 to enhance the performance of Al-20SiC composites.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of High Current Pulsed Electron Beam (HCPEB) on the Organization and Wear Resistance of CeO2-Modified Al-20SiC Composites

et al. 2023

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“…Aluminum matrix composites present such superior combination of characteristics that common monolithic materials are not able to compete [65]. Aluminum matrix composites have been utilized in various functional, structural, and non-structural engineering applications owing to their good performance, and environmental and economic advantages [66]. Lower airborne emissions, lower fuel consumption, and less noise is the key advantages of aluminum matrix composites for utilization in the transportation sector.…”

Section: Aluminum Matrix Composites (Amcs)mentioning

confidence: 99%

Production Methods of CNT-reinforced Al Matrix composites: A Review

Tajzad

Ghasali

2020

jcc

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Carbon nanotubes (CNTs)-reinforced Al composites have attracted attention due to their high specific strength and low density, which makes them suitable for the use in aerospace and automobile industries. In this review, preparation methods of Al/CNTs composites for achieving a homogeneous desperation of the CNT in the Al matrix are summarized. In addition, the effect of processing methods on carbon nanotube distribution and enhancement of mechanical properties such as toughness, wear behavior and hardness of the nanocomposites are reviewed. Improvement of mechanical characteristics was observed by the incorporation of carbon nanotubes into aluminum matrix. The strengthening factors gained by the carbon nanotubes addition are the interface of metal and CNTs and the chemical and structural stability of CNTs.

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“…[19,20] The development of an efficient and low-cost fabrication technology for SiC/Al composites can promote their large-scale applications. [21] Although many studies focusing on the fabrication of SiC/Al composites have been reported, [18,20,[22][23][24] only few studies have reported the effect of high-content SiC/Al composites on the characteristics of the SiC gradient distribution. Zhou et al [25] used the filtration extrusion method to fabricate an Al/diamond electronic packaging material with up to 40 wt% diamond content.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of SiC/Al Functionally Graded Materials Via Filtration Extrusion

Zhao

Yang

et al. 2023

Adv Eng Mater

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Functionally graded materials (FGMs) have broad application prospects owing to their outstanding material properties. Herein, a filtration extrusion device is designed, and low‐content SiC/Al composites are used to explore the feasibility of applying filtration extrusion techniques to the fabrication of FGMs. The results suggest that the extrusion force increases monotonically with an increase in the filtration extrusion ratio. Furthermore, the filtration extrusion process can be divided into two stages based on the change trend of extrusion pressure: at stage 1, extrusion force is small and increases slowly. At stage 2, the extrusion force increases significantly and rapidly. During the filtration extrusion process, the larger the initial content, the lower the extrusion temperature, the smaller the hole‐separation mold area ratio, the faster the increase in the extrusion force, and the greater the maximum extrusion force during the extrusion process. Based on filtration extrusion experiments for various extrusion distances, it is found that the transition from the nonflow to the flow influence zone is primarily responsible for the enrichment and gradient distribution of SiC particles. The SiC particles are distributed in a gradient, and the content of SiC particles near the separation mold is higher than that on the other side.

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Effects of La and Ce on microstructure and properties of SiC/Al composites

Cited by 18 publications

References 16 publications

Effect of High Current Pulsed Electron Beam (HCPEB) on the Organization and Wear Resistance of CeO2-Modified Al-20SiC Composites

Effect of High Current Pulsed Electron Beam (HCPEB) on the Organization and Wear Resistance of CeO2-Modified Al-20SiC Composites

Production Methods of CNT-reinforced Al Matrix composites: A Review

Fabrication of SiC/Al Functionally Graded Materials Via Filtration Extrusion

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