1725 パルス通電圧接法(PCHP)により作製したボロン繊維強化Ti基複合材料の特性(J08-6 材料・構造,デバイス(2),J08 知的材料・構造システム)

  • 水内 潔
    大阪市立工業研究所 材料プロセシング研究室
  • 井上 漢龍
    ワシントン大学 材料科学工学科
  • 杉岡 正美
    大阪市立工業研究所 材料プロセシング研究室
  • 伊丹 正郎
    大阪市立工業研究所 材料プロセシング研究室
  • 川原 正和
    住友石炭鉱業(株)
  • 山内 勇
    大阪大学大学院工学研究科マテリアル科学専攻
  • 浅沼 博
    千葉大学工学部電子機械工学科機械物理システム講座

書誌事項

タイトル別名
  • 1725 Properties of B Fiber Reinforced Ti Matrix Composites Fabricated by Pulsed Current Hot Pressing (PCHP)

抄録

Boron fiber reinforced Ti matrix composites were fabricated by a pulsed current hot pressing (PCHP) process at various holding temperatures between 973K and 1273K at pressure of 32MPa for 600s. Well bonding between the fiber and matrix was obtained by the PCHP at 1073K. When fabricated at the holding temperature higher than 1173K, a TiB_2 layer was formed along the interface between the fiber and the matrix, and the crystallization of boron in the vicinity of tungsten core in the fiber occurred. The thickness of TiB_2 layer formed and the crystallized boron increased with increasing the holding temperature. Tensile tests were carried out at room temperature for the composites fabricated by the PCHP at 1073K. The yield stress of the composites containing 17.2 vol.% boron fiber was attained at 706MPa. This value was about 80% of the yield stress calculated by the force equilibrium equation of a composite along with the fiber axis direction

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