Correcting for contact area changes in nanoindentation using surface acoustic waves
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 tung...
| Main Authors: | , , , , , |
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| Format: | Journal article |
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Elsevier
2016
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| _version_ | 1797070401988198400 |
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| author | Beck, C Hofmann, F Eliason, J Maznev, A Nelson, K Armstrong, D |
| author_facet | Beck, C Hofmann, F Eliason, J Maznev, A Nelson, K Armstrong, D |
| author_sort | Beck, C |
| collection | OXFORD |
| description | 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 effect. Importantly we demonstrate that a priori knowledge of elastic properties can be readily used to compensate for pileup effects in nanoindentation without the need for any further measurements. |
| first_indexed | 2024-03-06T22:38:17Z |
| format | Journal article |
| id | oxford-uuid:5aacef83-5064-412c-a22b-11ed7043f9e5 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T22:38:17Z |
| publishDate | 2016 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:5aacef83-5064-412c-a22b-11ed7043f9e52022-03-26T17:17:13ZCorrecting for contact area changes in nanoindentation using surface acoustic wavesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5aacef83-5064-412c-a22b-11ed7043f9e5Symplectic Elements at OxfordElsevier2016Beck, CHofmann, FEliason, JMaznev, ANelson, KArmstrong, DNanoindentation 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 effect. Importantly we demonstrate that a priori knowledge of elastic properties can be readily used to compensate for pileup effects in nanoindentation without the need for any further measurements. |
| spellingShingle | Beck, C Hofmann, F Eliason, J Maznev, A Nelson, K Armstrong, D Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title | Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title_full | Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title_fullStr | Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title_full_unstemmed | Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title_short | Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title_sort | correcting for contact area changes in nanoindentation using surface acoustic waves |
| work_keys_str_mv | AT beckc correctingforcontactareachangesinnanoindentationusingsurfaceacousticwaves AT hofmannf correctingforcontactareachangesinnanoindentationusingsurfaceacousticwaves AT eliasonj correctingforcontactareachangesinnanoindentationusingsurfaceacousticwaves AT mazneva correctingforcontactareachangesinnanoindentationusingsurfaceacousticwaves AT nelsonk correctingforcontactareachangesinnanoindentationusingsurfaceacousticwaves AT armstrongd correctingforcontactareachangesinnanoindentationusingsurfaceacousticwaves |