Microstructures and Properties of Nanocomposites Obtained through SPTS Consolidation of Powders

I. V. Alexandrov; Y. T. Zhu; T. C. Lowe; R. K. Islamgaliev; R. Z. Valiev

doi:10.1007/s11661-998-0103-4

Microstructures and Properties of Nanocomposites Obtained through SPTS Consolidation of Powders

I. V. Alexandrov, Y. T. Zhu, T. C. Lowe, R. K. Islamgaliev, R. Z. Valiev

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

130 Citations (Scopus)

Abstract

The microstructures and properties of copper- and aluminum-based nanocomposites processed through severe plastic torsional straining (SPTS) consolidation of metallic micrometer powders and ceramic nanopowders were investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), microhardness and electrical resistivity measurements, and mechanical tests. It was shown that the SPTS consolidation of powders is an effective technique for fabricating metal-ceramic nanocomposites with a high density, ultrafine grain size, and high strength. Copper samples processed under a high pressure of 6 GPa exhibited high failure strength and strain as well as unusual strain hardening. Superplastic-like behavior was found in A1-A1₂O₃ nanocomposite samples.

Original language	English
Pages (from-to)	2253-2260
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	29
Issue number	9
DOIs	https://doi.org/10.1007/s11661-998-0103-4
Publication status	Published - Sept 1998
Externally published	Yes

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@article{20eb155032174da18f0f45db2cec685a,

title = "Microstructures and Properties of Nanocomposites Obtained through SPTS Consolidation of Powders",

abstract = "The microstructures and properties of copper- and aluminum-based nanocomposites processed through severe plastic torsional straining (SPTS) consolidation of metallic micrometer powders and ceramic nanopowders were investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), microhardness and electrical resistivity measurements, and mechanical tests. It was shown that the SPTS consolidation of powders is an effective technique for fabricating metal-ceramic nanocomposites with a high density, ultrafine grain size, and high strength. Copper samples processed under a high pressure of 6 GPa exhibited high failure strength and strain as well as unusual strain hardening. Superplastic-like behavior was found in A1-A12O3 nanocomposite samples.",

author = "Alexandrov, {I. V.} and Zhu, {Y. T.} and Lowe, {T. C.} and Islamgaliev, {R. K.} and Valiev, {R. Z.}",

year = "1998",

month = sep,

doi = "10.1007/s11661-998-0103-4",

language = "English",

volume = "29",

pages = "2253--2260",

journal = "Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science",

issn = "1073-5623",

publisher = "Springer Boston",

number = "9",

}

Microstructures and Properties of Nanocomposites Obtained through SPTS Consolidation of Powders. / Alexandrov, I. V.; Zhu, Y. T.; Lowe, T. C. et al.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 29, No. 9, 09.1998, p. 2253-2260.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Microstructures and Properties of Nanocomposites Obtained through SPTS Consolidation of Powders

AU - Alexandrov, I. V.

AU - Zhu, Y. T.

AU - Lowe, T. C.

AU - Islamgaliev, R. K.

AU - Valiev, R. Z.

PY - 1998/9

Y1 - 1998/9

N2 - The microstructures and properties of copper- and aluminum-based nanocomposites processed through severe plastic torsional straining (SPTS) consolidation of metallic micrometer powders and ceramic nanopowders were investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), microhardness and electrical resistivity measurements, and mechanical tests. It was shown that the SPTS consolidation of powders is an effective technique for fabricating metal-ceramic nanocomposites with a high density, ultrafine grain size, and high strength. Copper samples processed under a high pressure of 6 GPa exhibited high failure strength and strain as well as unusual strain hardening. Superplastic-like behavior was found in A1-A12O3 nanocomposite samples.

AB - The microstructures and properties of copper- and aluminum-based nanocomposites processed through severe plastic torsional straining (SPTS) consolidation of metallic micrometer powders and ceramic nanopowders were investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), microhardness and electrical resistivity measurements, and mechanical tests. It was shown that the SPTS consolidation of powders is an effective technique for fabricating metal-ceramic nanocomposites with a high density, ultrafine grain size, and high strength. Copper samples processed under a high pressure of 6 GPa exhibited high failure strength and strain as well as unusual strain hardening. Superplastic-like behavior was found in A1-A12O3 nanocomposite samples.

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U2 - 10.1007/s11661-998-0103-4

DO - 10.1007/s11661-998-0103-4

M3 - RGC 21 - Publication in refereed journal

SN - 1073-5623

VL - 29

SP - 2253

EP - 2260

JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

IS - 9

ER -

Microstructures and Properties of Nanocomposites Obtained through SPTS Consolidation of Powders

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