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.
UR - http://www.scopus.com/inward/record.url?scp=0032166324&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0032166324&origin=recordpage
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 -