Properties of Boron Fiber Reinforced Aluminum Matrix Composites Fabricated by Pulsed Current Hot Pressing (PCHP)

Abstract:

Boron-fiber-reinforced Al-matrix composite was fabricated by a pulsed current hot pressing (PCHP) process at a pressure of 32MPa for 600s. It was found that the boron fiber and the Al-matrix were well bonded when the PCHP process was performed at a holding temperature of 773K. No interfacial reaction layer was observed along the interface between the boron fiber and the matrix when PCHP was done at 773K for 600s. Tensile deformation carried out at room temperature for the composite showed that the tensile yield stress increased with increasing volume fraction of the boron fiber in the composite. The composite with 17.2 vol.% of boron fiber presented a tensile yield stress of 600MPa. This value was about 90% the yield stress estimated by a force equilibrium equation of a composite taking into account the direction of fiber axis.

• Periodical: Materials Science Forum (Volumes 539-543)
• Pages: 3139-3144
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.539-543.3139
• Online since: March 2007
• Authors: Kiyoshi Mizuuchi, Takashi Takeuchi, Kanryu Inoue, Jun Hee Lee, Masami Sugioka, Masao Itami, Masakazu Kawahara, Isamu Yamauchi, Hiroshi Asanuma
• Keywords: Aluminum (Al), Boron Fiber, Metal Matrix Composite (MMC), Pulsed Current Hot Pressing, Spark Plasma Sintering (SPS), Tensile Strength, Yield Stress

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