Publisher DOI: 10.1557/mrs.2017.302
Title: Mechanical response of nanoporous metals: A story of size, surface stress, and severed struts
Language: English
Authors: Jin, Hai-Jun 
Weißmüller, Jörg 
Farkas, Diana 
Issue Date: 1-Jan-2018
Source: MRS Bulletin 1 (43): 35-42 (2018-01-01)
Journal or Series Name: MRS bulletin 
Abstract (english): Nanoporous metals made by dealloying are macroscopic network architectures that can contain ∼1015 nanoscale struts or ligaments per sample. Their mechanical performance is critical to their applications as functional or lightweight high-strength materials. Testing nanoporous metals at the macroscopic scale offers opportunities for unraveling the properties of nanoscale solids in general. The central questions in this area include whether the macroscopic strength and elastic modulus of nanoporous metals can be correlated with the properties of nanoscale ligaments by the classical Gibson-Ashby equations, whether the dealloying-made network structure differs from the conventional foam metals, how network connectivity influences mechanical response, and how ligament size and surface properties affect the elastic and plastic response of nanoscale solids and that of nanoporous metals, particularly the tension-compression asymmetry in strength. This article reviews the fundamental observations of the mechanical response of nanoporous metals with a focus on gold and the emerging understanding of the aforementioned issues.
URI: http://hdl.handle.net/11420/2495
ISSN: 0883-7694
Institute: Werkstoffphysik und -technologie M-22 
Type: (wissenschaftlicher) Artikel
Appears in Collections:Publications without fulltext

Show full item record

Page view(s)

17
Last Week
1
Last month
checked on May 25, 2019

Google ScholarTM

Check

Export

Items in TORE are protected by copyright, with all rights reserved, unless otherwise indicated.