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 language | English |
|---|---|
| Pages (from-to) | 806-811 |
| Number of pages | 6 |
| Journal | Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy |
| Volume | 45 |
| Issue number | 9 |
| Publication status | Published - Sep 1998 |
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Keywords
- Elasticity
- Hard ultrafine particle
- Metal compound-meso porous carbon composite
- Metal ion exchanged carbothermal reduction
- Residual magnetization
ASJC Scopus subject areas
- Mechanical Engineering
- Metals and Alloys
Cite this
Preparation of porous carbon composite with highly dispersed ultra fine metal compound from metal ion exchanged resin -Hardness and magnetic properties-. / Sakata, Yusaku; Muto, Akinori; Uddin, Azhar; Tanihara, Manabu; Harino, Kazumasa; Takada, Jun; Kusano, Yoshihiro.
In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 45, No. 9, 09.1998, p. 806-811.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Preparation of porous carbon composite with highly dispersed ultra fine metal compound from metal ion exchanged resin -Hardness and magnetic properties-
AU - Sakata, Yusaku
AU - Muto, Akinori
AU - Uddin, Azhar
AU - Tanihara, Manabu
AU - Harino, Kazumasa
AU - Takada, Jun
AU - Kusano, Yoshihiro
PY - 1998/9
Y1 - 1998/9
N2 - 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.
AB - 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.
KW - Elasticity
KW - Hard ultrafine particle
KW - Metal compound-meso porous carbon composite
KW - Metal ion exchanged carbothermal reduction
KW - Residual magnetization
UR - http://www.scopus.com/inward/record.url?scp=0032155095&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032155095&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0032155095
VL - 45
SP - 806
EP - 811
JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
SN - 0532-8799
IS - 9
ER -