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Correcting for contact area changes in nanoindentation using surface acoustic waves

Abstract:

Nanoindentation is extensively used to quantify nano-scale mechanical behaviour. A widely-used assumption is that a well-defined, materialindependent relationship exists between the indentation depth and indenter contact area. Here we demonstrate that this assumption is violated by ionimplanted tungsten, where pileup around the indenter tip leads to substantial changes in contact area. Using high accuracy surface acoustic wave measurements of elastic modulus, we are able to correct for this e...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.scriptamat.2016.09.037

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
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Funding agency for:
Hofmann, F
Grant:
RG130308
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Funding agency for:
Hofmann, F
Grant:
RG130308
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Funding agency for:
Armstrong, D
Grant:
Research Fellowship
Publisher:
Elsevier Publisher's website
Journal:
Scripta Materialia Journal website
Volume:
128
Pages:
83–86
Publication date:
2016-01-01
Acceptance date:
2016-09-28
DOI:
EISSN:
1872-8456
ISSN:
1359-6462
Source identifiers:
647411
Keywords:
Pubs id:
pubs:647411
UUID:
uuid:5aacef83-5064-412c-a22b-11ed7043f9e5
Local pid:
pubs:647411
Deposit date:
2016-09-30

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