Synthesis and densification of CNTs/Fe/Al2O3 nanocomposite powders by chemical vapor deposition

S. H. Yoo; H. J. Wang; S. T. Oh; S. G. Kang; Y. H. Choa

Synthesis and densification of CNTs/Fe/Al₂O₃ nanocomposite powders by chemical vapor deposition

S. H. Yoo, H. J. Wang, S. T. Oh, S. G. Kang, Y. H. Choa

Dept. of Materials Science & Engineering

Hanyang University

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

CNTs/Fe/Al₂O₃ nanocomposites were prepared by thermal CVD and SPS methods. The dispersion of CNTs in the Fe/Al₂O ₃ matrix were controlled by an attrition milling process. FESEM analysis revealed that the CNTs of 5 vol.% were homogeneously dispersed in the Fe/Al₂O₃. The effects of CNTs dispersion on the mechanical and electrical properties of the specimens were investigated. Fracture strength and electrical conductivity of 5 vol.% CNTs/Fe/Am₂O ₃specimen were measured at 641 MPa and 2.93 × 10^-11 mS/m, whereas that of a 20 vol.% CNTs/Fe/Al₂O₃ specimen were 208 MPa and 8.46 × 10^-7 mS/m, respectively. In comparison with an Al₂O₃ monolith, the specimen with 5 vol.% CNTs showed enhanced fracture strength and increased electrical conductivity.

Original language	English
Pages (from-to)	665-668
Number of pages	4
Journal	Key Engineering Materials
Volume	317-318
State	Published - 2006

Keywords

CNT
Nanocomposite
Spark plasma sintering
Thermal CVD

Cite this

@article{241825be8f034f57b2e8e3ec9e240df5,

title = "Synthesis and densification of CNTs/Fe/Al2O3 nanocomposite powders by chemical vapor deposition",

abstract = "CNTs/Fe/Al2O3 nanocomposites were prepared by thermal CVD and SPS methods. The dispersion of CNTs in the Fe/Al2O 3 matrix were controlled by an attrition milling process. FESEM analysis revealed that the CNTs of 5 vol.\% were homogeneously dispersed in the Fe/Al2O3. The effects of CNTs dispersion on the mechanical and electrical properties of the specimens were investigated. Fracture strength and electrical conductivity of 5 vol.\% CNTs/Fe/Am2O 3specimen were measured at 641 MPa and 2.93 × 10-11 mS/m, whereas that of a 20 vol.\% CNTs/Fe/Al2O3 specimen were 208 MPa and 8.46 × 10-7 mS/m, respectively. In comparison with an Al2O3 monolith, the specimen with 5 vol.\% CNTs showed enhanced fracture strength and increased electrical conductivity.",

keywords = "CNT, Nanocomposite, Spark plasma sintering, Thermal CVD",

author = "Yoo, \{S. H.\} and Wang, \{H. J.\} and Oh, \{S. T.\} and Kang, \{S. G.\} and Choa, \{Y. H.\}",

year = "2006",

language = "English",

volume = "317-318",

pages = "665--668",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications",

}

TY - JOUR

T1 - Synthesis and densification of CNTs/Fe/Al2O3 nanocomposite powders by chemical vapor deposition

AU - Yoo, S. H.

AU - Wang, H. J.

AU - Oh, S. T.

AU - Kang, S. G.

AU - Choa, Y. H.

PY - 2006

Y1 - 2006

N2 - CNTs/Fe/Al2O3 nanocomposites were prepared by thermal CVD and SPS methods. The dispersion of CNTs in the Fe/Al2O 3 matrix were controlled by an attrition milling process. FESEM analysis revealed that the CNTs of 5 vol.% were homogeneously dispersed in the Fe/Al2O3. The effects of CNTs dispersion on the mechanical and electrical properties of the specimens were investigated. Fracture strength and electrical conductivity of 5 vol.% CNTs/Fe/Am2O 3specimen were measured at 641 MPa and 2.93 × 10-11 mS/m, whereas that of a 20 vol.% CNTs/Fe/Al2O3 specimen were 208 MPa and 8.46 × 10-7 mS/m, respectively. In comparison with an Al2O3 monolith, the specimen with 5 vol.% CNTs showed enhanced fracture strength and increased electrical conductivity.

AB - CNTs/Fe/Al2O3 nanocomposites were prepared by thermal CVD and SPS methods. The dispersion of CNTs in the Fe/Al2O 3 matrix were controlled by an attrition milling process. FESEM analysis revealed that the CNTs of 5 vol.% were homogeneously dispersed in the Fe/Al2O3. The effects of CNTs dispersion on the mechanical and electrical properties of the specimens were investigated. Fracture strength and electrical conductivity of 5 vol.% CNTs/Fe/Am2O 3specimen were measured at 641 MPa and 2.93 × 10-11 mS/m, whereas that of a 20 vol.% CNTs/Fe/Al2O3 specimen were 208 MPa and 8.46 × 10-7 mS/m, respectively. In comparison with an Al2O3 monolith, the specimen with 5 vol.% CNTs showed enhanced fracture strength and increased electrical conductivity.

KW - CNT

KW - Nanocomposite

KW - Spark plasma sintering

KW - Thermal CVD

UR - http://www.scopus.com/inward/record.url?scp=33746268376&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:33746268376

SN - 1013-9826

VL - 317-318

SP - 665

EP - 668

JO - Key Engineering Materials

JF - Key Engineering Materials

ER -

Synthesis and densification of CNTs/Fe/Al₂O₃ nanocomposite powders by chemical vapor deposition

Abstract

Keywords

Other files and links

Fingerprint

Cite this