Characterization of directionally solidified B4C-TiB2 composites prepared by a floating zone method

Itaru Gunjishima, Takaya Akashi, Takashi Goto

研究成果: Article査読

38 被引用数 (Scopus)

抄録

Directionally solidified B4C-TiB2 composites were prepared by a Floating Zone method. TiB2 phases in a rod shape were continuously connected in the B4C matrix. The c-axes of TiB2 and B4C phases were perpendicular and tilted 22° the growth direction, respectively. The (101) and (12̄0) planes of the B4C were in parallel to the (001) and (100) planes of TiB2, respectively. The electrical conductivity of the composite parallel to the growth direction (σ) was greater than monolithic B4C by a factor of 100 to 1000. The thermal conductivity of the composite parallel to the growth direction (κ) was about one and a half times as high as that of B4C. The anisotropy of electrical and thermal conductivity were basically explained by a mixing law using the values of B4C and TiB2. The microhardness of the composite was almost the same as that of B4C. The electric discharge machining of the composite was possible owing to the enhancement of electrical conductivity.

本文言語English
ページ(範囲)712-720
ページ数9
ジャーナルMaterials Transactions
43
4
DOI
出版ステータスPublished - 2002 4

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「Characterization of directionally solidified B<sub>4</sub>C-TiB<sub>2</sub> composites prepared by a floating zone method」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル