Document Detail


Structural investigation and mechanical properties of a representative of a new class of materials: nanograined metallic glasses.
MedLine Citation:
PMID:  23299703     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A new class of materials: Au-based nanograined metallic glasses (NGMGs) were synthesized using magnetron sputtering with powder targets. A detailed study by x-ray diffraction and high-resolution transmission electron microscopy (TEM) documents the unique nanoscale granular structure of the Au-based NGMG. This material inherited the good mechanical properties of metallic glasses, showing a high hardness of ∼5.3 GPa and a low elastic modulus of ∼79 GPa. In addition, in contrast to most MGs the nanoglassy particles can deform along the loading direction, exhibiting unique tensile elongation up to 100%. During thermal crystallization of NGMG material, even smaller sized Au solid solution nanocrystals are formed within the glassy nanograins, offering a new way for production of the nanocomposites with tailored structural length scales.
Authors:
N Chen; D V Louzguine-Luzgin; G Q Xie; P Sharma; J H Perepezko; M Esashi; A R Yavari; A Inoue
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Publication Detail:
Type:  Journal Article     Date:  2013-01-08
Journal Detail:
Title:  Nanotechnology     Volume:  24     ISSN:  1361-6528     ISO Abbreviation:  Nanotechnology     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  England    
Other Details:
Languages:  eng     Pagination:  045610     Citation Subset:  IM    
Affiliation:
WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
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