Damage and wear resistance of Al2O3-CNT nanocomposites fabricated by spark plasma sintering

Kee Sung Lee, Byung Koog Jang, Yoshio Sakka

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

In this study, we prepare Al2O3CNT (carbon nanotube) composites with different contents of CNT, 1-20 vol% into the Al 2O3 ceramics, for the purpose of improving damage and wear resistance. Al2O3CNT composites are obtained by spark plasma sintering in conditions of 1400-1600°C in vacuum and 30-80 MPa. Hardness evaluated by Vickers indentation shows that the hardness of Al 2O3-CNTcomposites can be enhanced when the CNTaddition is less than 5 vol%. Toughness evaluated by Vickers indentation indicates that the toughness of the composites is comparable with that of an Al2O 3 monolith. Hertzian indentations using a spherical indenter indicate the hard and elastic behavior of the composites by the addition of CNT. The wear rate and friction coefficients of the composites evaluated by the ball-on-disk method show that the composites represent low friction and reduced wear loss under constant contact load. The results indicate that the damage and wear resistance of Al2O3 ceramics can be enhanced by the addition of carbon nanotubes in optimum conditions.

元の言語英語
ページ(範囲)867-872
ページ数6
ジャーナルJournal of the Ceramic Society of Japan
121
発行部数1418
DOI
出版物ステータス出版済み - 10 2013

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Spark plasma sintering
sparks
wear resistance
Wear resistance
Nanocomposites
nanocomposites
sintering
carbon nanotubes
damage
composite materials
Composite materials
indentation
Indentation
Carbon Nanotubes
toughness
Toughness
Carbon nanotubes
hardness
Hardness
Wear of materials

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

これを引用

Damage and wear resistance of Al2O3-CNT nanocomposites fabricated by spark plasma sintering. / Lee, Kee Sung; Jang, Byung Koog; Sakka, Yoshio.

:: Journal of the Ceramic Society of Japan, 巻 121, 番号 1418, 10.2013, p. 867-872.

研究成果: ジャーナルへの寄稿記事

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