Manufacturing Process of Carbon-Alumina Short Fiber Hybrid Reinforced Aluminum Matrix Composites by Low Pressure Casting

Choi, Yongbum; Kataoka, Yoshiki; Zu, Zhefeng; Matsugi, Kazuhiro; Sasaki, Gen

doi:10.2320/matertrans.m2017075

Cited by 8 publications

(5 citation statements)

References 11 publications

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“…Figure 1 shows the Manufacturing process of short carbon fiber reinforced Al composite by preformless. Besides, SCF preform of 10 vol.% reinforced composite fabricated with SiO 2 binder 9 was used in the comparison of fiber dispersion in composites. The microstructures of the Cu-plated SCFs and Cu-plated SCF/Al matrix composites without preform manufacturing were observed using a scanning electron microscope (SEM, TOPCON SM-520, Japan).…”

Section: Methodsmentioning

confidence: 99%

Manufacturing process of short carbon fiber reinforced Al matrix with preformless and their properties

Choi

Meng

2021

Sci Rep

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The conventional manufacturing process of fiber-reinforced metal matrix composites via liquid infiltration processes, preform manufacturing using inorganic binders is essential. However, the procedure involves binder sintering, which requires high energy and long operating times. A new fabrication process without preform manufacturing is proposed to fabricate short carbon fiber (SCF)-reinforced aluminum matrix composites using a low-pressure infiltration method. To improve the wettability between fiber and matrix, fibers were plated copper using an electroless plating process. The low-pressure infiltration method with preformless succeeded in manufacturing a composite with a volume fraction of about 30% of carbon fibers.The fiber orientation of the composite material manufactured without preform and the fiber orientation of the composite material manufactured using an inorganic binder was almost the same. The manufactured composites with preformless have high hardness and high thermal conductivity.

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Section: Methodsmentioning

confidence: 99%

Manufacturing process of short carbon fiber reinforced Al matrix with preformless and their properties

Choi

Meng

2021

Sci Rep

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“…Figure 1 shows the Manufacturing process of carbon short ber reinforced Al composite by preformless. Besides, CSF preform of 10 vol.% reinforced composite fabricated with SiO 2 binder (Choi et al 2017) was used in the comparison of ber dispersion in composites. The microstructures of the Cu-plated CSFs and Cuplated CSF/Al matrix composites without preform manufacturing were observed using a scanning electron microscope (SEM, TOPCON SM-520, Japan).…”

Section: Methodsmentioning

confidence: 99%

Manufacturing Process of Carbon Short Fiber Reinforced Al Matrix With Preformless and Their Properties

Choi¹,

Meng²,

Xu³

2021

Preprint

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Conventional manufacturing process of fiber reinforced metal matrix composites via liquid infiltration processes, preform manufacturing using inorganic binders is essential. However, the procedure involves binder sintering, which requires high energy and long operating times. A new fabrication process without preform manufacturing is proposed to fabricate carbon short fiber (CSF)-reinforced aluminum matrix composites using a low-pressure infiltration method. To improve the wettability and avoid interfacial reactions in CSF/Al matrix composites, the fibers were plated with copper using electroless plating process. Various volume fractions of CSFs were used to determine optimum fiber content which would produce versatile mechanical and thermal properties. Effect of CSFs content on properties such as Vickers hardness and thermal conductivity was studied. Cu-plated CSFs showed good bonding with the Al matrix and CSFs were randomly dispersed inside the composites, with CSF content of up to 29.1 vol.%, through the new manufacturing process. It showed better fiber distribution than the composite fabricated perform with SiO2 binder, which was determined by comparing the relative frequency distribution of CSFs in composites. Vickers hardness of the composites showed an obvious improvement over that of the Al matrix, and the hardness increased as the CSF content increased. The Cu-plated CSF (14.3 vol.%) reinforced Al matrix composite exhibited the highest thermal conductivity (184.1 W·m-1·K-1). However, the thermal conductivity decreased as CSF content increased to 29.1 vol.% due to the defects in composite.

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“…The composites were fabricated by the LPI process at 1073 K in Ar atmosphere by applying a pressure of 0.4 MPa to the molten Al. For comparison of microstructure of CSF/A1070 composites, the manufacturing conditions and processes of the preform with SiO 2 binder are cited in Choi et al 7) The microstructures of the CSF preform with SiO 2 binder, nickelplated CSFs without preform manufacturing, as well as CSF/ Al based composites with SiO 2 binder and without preform manufacturing, were observed using a Scanning Electron Microscope (SEM, TOPCON SM-520, Japan). The elemental analysis was carried out by energy dispersive X-ray spectroscopy (EDS, S-5200 Energy Dispersive X-ray Analyzer, Hitachi, Japan).…”

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

Development of Carbon Short Fiber Reinforced Al Based Composite without Preform Manufacturing

et al. 2020

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The traditional manufacturing of short fiber reinforced composites by liquid processes require preform manufacturing using inorganic binders. However, conventional preform manufacturing techniques using inorganic binder are nontrivial procedures requiring high-energy inputs for binder sintering process. A novel alternative fabrication process without preform manufacturing was developed for carbon short fiber (CSF) reinforced Al based composite by low-pressure infiltration method. The volume fraction of CSFs in the composites was 10 vol%. Two kinds of CSF/A1070 composites were compared in this paper, one is manufactured with preform manufacturing technique (with SiO 2 binder) and the other is fabricated without preform manufacturing. The microstructures of both the specimens were observed for defects in the composite. In the CSF/A1070 composite obtained from the new manufacturing process, defects by aggregation of CFSs were reduced. Furthermore, compared with the CSF/A1070 composite by preform manufacturing with SiO 2 binder, the relative density of the CSF/A1070 composite obtained from the new manufacturing process is also observed to increase from 96.6% to 97.8%. CSFs were randomly dispersed inside the composites obtained through the new manufacturing process. The Vickers hardness of the CSF/A1070 composite obtained through preform manufacturing and the new manufacturing process was 33.5 Hv and 41.3 Hv, respectively. Furthermore, CSF/Al based composites using the A356 and A336 alloy as matrix were also manufactured through the new fabrication method. The Vickers hardness, relative density of CSF/A356 and CSF/A336 alloy

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Manufacturing Process of Carbon-Alumina Short Fiber Hybrid Reinforced Aluminum Matrix Composites by Low Pressure Casting

Cited by 8 publications

References 11 publications

Manufacturing process of short carbon fiber reinforced Al matrix with preformless and their properties

Manufacturing process of short carbon fiber reinforced Al matrix with preformless and their properties

Manufacturing Process of Carbon Short Fiber Reinforced Al Matrix With Preformless and Their Properties

Development of Carbon Short Fiber Reinforced Al Based Composite without Preform Manufacturing

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