Effect of sintering temperature on a single-wall carbon nanotube-toughened alumina-based nanocomposite

Spark plasma sintering is used to produce single-walled carbon nanotube-toughened Al 2O 3-based composites that exhibit excellent toughness (6.9–9.7 MPa m 1/2), being at least two times higher than that of single phase alumina. Raman spectroscopy indicates that carbon nanotube cannot be retained at...

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Bibliographic Details
Published inScripta materialia Vol. 56; no. 11; pp. 959 - 962
Main Authors Jiang, Dongtao, Thomson, Katherine, Kuntz, Joshua D., Ager, Joel W., Mukherjee, Amiya K.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.06.2007
Subjects
Alumina
Aluminum oxide
Carbon
Carbon nanotube
Carbon nanotubes
Nanocomposite
Nanocomposites
Nanomaterials
Nanostructure
Sintering
Spark plasma sintering
Toughening
Toughness
Carbon nanotube
Spark plasma sintering
Nanocomposite
Toughening
Alumina
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Summary:Spark plasma sintering is used to produce single-walled carbon nanotube-toughened Al 2O 3-based composites that exhibit excellent toughness (6.9–9.7 MPa m 1/2), being at least two times higher than that of single phase alumina. Raman spectroscopy indicates that carbon nanotube cannot be retained at high sintering temperature. A high compressive stress (2.0 GPa) in the alumina matrix is also responsible for the improvement in toughness. The controversy in the literature over the effective toughening of alumina by carbon nanotube is discussed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2007.02.007