Fabrication of Continuous Nickel-Coated Carbon Fiber Reinforced Aluminum Matrix Composites Using Low Gas Pressure Infiltration Method

2013 ◽  
Vol 634-638 ◽  
pp. 1914-1917 ◽  
Author(s):  
Zhen Jun Wang ◽  
Zhi Feng Xu ◽  
Huan Yu ◽  
Qing Song Yan ◽  
Bo Wen Xiong

Based on the principle of vacuum counter-pressure casting, a low gas pressure infiltration technology was developed to fabricate the Ni-coated carbon fiber reinforced A357 alloy composites. The soundness and microstructure of the as-cast composites were investigated. The results show the relative density increases with the increase of melt temperature, while it firstly increases and then declines as the fiber temperature and infiltration pressure increased. The enhancement of melt and fiber temperature can eliminate the incomplete infiltration defects and improve the uniformity of fiber distribution. The insufficient infiltration pressure leads to some micro-pores in the matrix alloy. However, the over high fiber temperature and infiltration pressure may result in the separation of nickel coating and the fiber aggregation respectively, both of which are responsible for the partial un-infiltrated or insufficient filling defects. The appropriate infiltration parameters identified in this study could provide a reference for inhibition of the hazard interfacial reactions by optimizing the low gas pressure infiltration process.

1993 ◽  
Vol 8 (10) ◽  
pp. 2492-2498 ◽  
Author(s):  
Takakazu Suzuki ◽  
Hiroyuki Umehara ◽  
Ryuichi Hayashi ◽  
Shuichiro Watanabc

The feasibility study of electroless plating as carbon fiber modification for aluminum matrix composites was carried out. The comparison of Cu plating and Ni plating of carbon fiber by the electroless method was investigated. The Cu- or Ni-coated carbon fiber reinforced aluminum was fabricated with a centrifugal pressure infiltration method. The mechanical property was metallographically discussed. Electroless plating is able to improve the throwing power of the precipitant into the multifilament and uniformly coat Cu or Ni onto the carbon fiber. The technique using centrifugal casting seems to be an innovative method for fabrication of composite materials. The eutectic reaction between aluminum and Cu or Ni on the fiber appears to improve the affinity of the carbon fiber and aluminum. The Cu-plated carbon fiber reinforced aluminum is two times higher in bending strength than Ni-plated carbon fiber reinforced aluminum.


2011 ◽  
Vol 686 ◽  
pp. 758-764 ◽  
Author(s):  
Xiao Ming Sui ◽  
Xi Liang Xu ◽  
Xiao Meng Zheng ◽  
Guang Zhi Xu ◽  
Qiang Wang

Driven by the increasing requirements from aircraft producers, aluminium alloy matrix composites with carbon fiber reinforcement have been largely used in the modern industry. The method of traditional preparation of carbon fiber reinforced aluminum matrix composites is not only high cost and complex to produce but also difficult to apply in the civilian. The present paper focuses on exploratory study on the preparation of carbon-fiber- reinforced aluminum composites, the intensifying material is continuous long carbon fiber. In order to avoid any interfacial reactions in the carbon fiber reinforced composites, the carbon fibers were coated with copper. We made The tensile samples were made by using the mould, the tensile properties determined, the strengthening mechanism studied, and the carbon fiber in the matrix observed with the microscope.


2020 ◽  
Vol 46 (6) ◽  
pp. 7903-7911
Author(s):  
Xueni Zhao ◽  
Jiamei Zheng ◽  
Weigang Zhang ◽  
Xueyan Chen ◽  
Zhenzhen Gui

2018 ◽  
Vol 53 (8) ◽  
pp. 1123-1132 ◽  
Author(s):  
Bedriye Ucpinar ◽  
Ayse Aytac

This paper aims to study the effect of different surface coatings of carbon fiber on the thermal, mechanical, and morphological properties of carbon fiber reinforced poly(phenylene sulfide) composites. To this end, unsized and different surface-coated carbon fibers were used. Prepared poly(phenylene sulfide)/carbon fiber composites were characterized by using Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, tensile test, dynamic mechanical analysis, and scanning electron microscopy. Tensile strength values of the surfaced-coated carbon fibers reinforced poly(phenylene sulfide) composites are higher than the unsized carbon fiber reinforced poly(phenylene sulfide) composite. The highest tensile strength and modulus values were observed for the polyurethane-coated carbon fiber reinforcement. Dynamic mechanical analysis studies indicated that polyurethane-coated carbon fiber reinforced composite exhibited higher storage modulus and better adhesion than the others. Differential scanning calorimetry results show that melting and glass transition temperature of the composites did not change significantly. Scanning electron microscopic studies showed that polyurethane and epoxy-coated carbon fibers exhibited better adhesion with poly(phenylene sulfide).


2014 ◽  
Vol 488-489 ◽  
pp. 30-35 ◽  
Author(s):  
Cun Juan Xia ◽  
Ming Liang Wang ◽  
Hao Wei Wang ◽  
Cong Zhou

The interface between the reinforcement and the matrix is significant to metal matrix composites. The effect of aluminum (Al) content on interfacial microstructure and mechanical properties of TiO2coated carbon fiber reinforced magnesium matrix composites by squeeze casting technique have been studied (C/Mg). Mg-2wt%Al and AZ91D were used as alloy matrix. The obtained results indicate that the carbon fibers in both kinds of composites are well protected by TiO2coating, without any interfacial brittle carbide phase observed. The flexural strength of Cf-TiO2/AZ91D (1009MPa) composites is 26.5% lower than that of Cf-TiO2/Mg-2Al (1277MPa) composites. The lath-shaped precipitates of Mg17Al12in AZ91D composites lead to the mechanical properties decrease.


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