Improvement of bending strength in aluminum alloy matrix composites containing short alumina fibers by centrifugal force.

DOI Web Site 4 Citations

Bibliographic Information

Other Title
  • 遠心力によるアルミナ短繊維強化アルミニウム合金複合材料の曲げ強度向上
  • エンシンリョク ニ ヨル アルミナ タンセンイ キョウカ アルミニウム ゴウキ

Search this article

Abstract

Cylindrical aluminum alloy matrix composites (MMC) containing alumina fibers were fabricated by applying a centrifugal force to fibrous preforms at room temperature before infiltration. Fiber segregation towards the outer periphery disappeared after infiltration, since boiling of carbon-tetrachloride as a mixture with the fibers relieved fiber segregation at the drying stage between the centrifuge and infiltration processes. However, the fibers tended to be aligned with a tangential direction of cylindrial fibrous preform by a centrifugal force. The MMC with high fiber volume fraction (Vf) showed only a poor alignment of fiber due to the dense fiber packing, while the one with low-Vf also showed a poor alignment due to long fiber length. Consequently, the MMC with Vf of nearly 20% showed the highest strengthening efficiency in bending tests. The bending strength increased with increasing Vf, and showed about a 200MPa rise compared to those of the MMC with the planar-randomly oriented fibers and the same Vf.

Journal

Citations (4)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top