Borkar, Tushar Hwang, Jaewon Hwang, Jun Yeon Scharf, Thomas W. Tiley, Jaimie Hong, Soon Hyung Banerjee, Rajarshi 2024-01-20T10:03:49Z 2024-01-20T10:03:49Z 2021-09-04 2014-03-28 0884-2914 https://pubs.kist.re.kr/handle/201004/126982 Two types of carbon nanotube reinforced nickel (CNT/Ni) nanocomposites were processed, both involving spark plasma sintering (SPS) of precursor powders consisting of nickel and carbon nanotubes. The first type involved simple mechanical dry milling of nickel and CNT powders, followed by sintering using SPS, resulting in nanocomposites exhibiting a tensile yield strength of 350 MPa (about two times that of SPS processed monolithic nickel with a strength of 160 MPa) and about 30% elongation to failure. In contrast, the nanocomposites processed by SPS of powders prepared by molecular-level mixing (MLM) exhibited substantially higher tensile yield strength of 690 MPa but limited ductility with an 8% elongation to failure. While the former type of processing involving dry-milling is expected to be lower in cost as well as easy to scale-up, the latter type of processing technique involving MLM leads to a more homogeneous distribution of nanotubes, leading to extraordinarily high strength levels. English CAMBRIDGE UNIV PRESS MECHANICAL-PROPERTIES THERMAL-PROPERTIES COMPOSITES HARDNESS INTERFACE GRAPHENE COPPER Strength versus ductility in carbon nanotube reinforced nickel matrix nanocomposites Article 10.1557/jmr.2014.53 1 JOURNAL OF MATERIALS RESEARCH, v.29, no.6, pp.761 - 769 JOURNAL OF MATERIALS RESEARCH 29 6 761 769 scie scopus 000333623400004 2-s2.0-84897392439 Materials Science, Multidisciplinary Materials Science Article MECHANICAL-PROPERTIES THERMAL-PROPERTIES COMPOSITES HARDNESS INTERFACE GRAPHENE COPPER sintering composite stress strain relationship