Preparation of porous carbon composite with highly dispersed ultra fine metal compound from metal ion exchanged resin -Hardness and magnetic properties-

Yusaku Sakata, Akinori Muto, Md Azhar Uddin, Manabu Tanihara, Kazumasa Harino, Jun Takada, Yoshihiro Kusano

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Porous carbon composites with highly dispersed ultrafine metal compounds (carbide, or nitride of Fe, Mo, W) were prepared by carbothermal reduction from metal ion exchanged resin. All the carbonized samples maintained their original spherical shape but their diameters shrunk to 60-80% of their initial sizes. Metal compounds in the carbonized sample were dispersed in the carbon matrix, and their particle diameters were 2-30nm. Some of the carbonized samples displayed a week needle trace or the trace gradually diminished within one minute during the vickers hardness measurement suggesting that the composite had elasticity. All the composites prepared from Fe3+ adsorbed chelate resin showed strong magnetic properties. Residual magnetization was confirmed only in the carbonized sample which was prepared by heating to 800°C in N2 and cooled rapidly.

Original languageEnglish
Pages (from-to)806-811
Number of pages6
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume45
Issue number9
DOIs
Publication statusPublished - Sep 1998

Keywords

  • Elasticity
  • Hard ultrafine particle
  • Metal compound-meso porous carbon composite
  • Metal ion exchanged carbothermal reduction
  • Residual magnetization

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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