Experimental studies and simulations of shock-compressed silicon
<p>The response of silicon to shock-compression has been an area of active research for decades. However, despite considerable improvements in both experimental techniques and computer simulations, the behaviour has not been unanimously constrained. This work introduces a new Lagrangian Elasti...
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| Other Authors: | |
| Format: | Thesis |
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2016
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| _version_ | 1797073549985316864 |
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| author | Stubley, P |
| author2 | Wark, J |
| author_facet | Wark, J Stubley, P |
| author_sort | Stubley, P |
| collection | OXFORD |
| description | <p>The response of silicon to shock-compression has been an area of active research for decades. However, despite considerable improvements in both experimental techniques and computer simulations, the behaviour has not been unanimously constrained. This work introduces a new Lagrangian Elastic code which aims to approach the modelling of solids from a different direction to traditional hydrodynamics codes. We present data from a white-light Laue diffraction experiment, which along with molecular dynamics simulations, suggest that a kinetically inhibited phase-change may be indirectly responsible for the previously reported anomalous elastic response of silicon. We also present data from a monochromatic x-ray diffraction experiment which show the first observed diffraction from a shock-induced high-pressure phase in silicon.</p> |
| first_indexed | 2024-03-06T23:23:45Z |
| format | Thesis |
| id | oxford-uuid:69abe674-450e-4379-be81-f6e0ebf40edb |
| institution | University of Oxford |
| last_indexed | 2024-03-06T23:23:45Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | oxford-uuid:69abe674-450e-4379-be81-f6e0ebf40edb2022-03-26T18:52:27ZExperimental studies and simulations of shock-compressed siliconThesishttp://purl.org/coar/resource_type/c_db06uuid:69abe674-450e-4379-be81-f6e0ebf40edbORA Deposit2016Stubley, PWark, J<p>The response of silicon to shock-compression has been an area of active research for decades. However, despite considerable improvements in both experimental techniques and computer simulations, the behaviour has not been unanimously constrained. This work introduces a new Lagrangian Elastic code which aims to approach the modelling of solids from a different direction to traditional hydrodynamics codes. We present data from a white-light Laue diffraction experiment, which along with molecular dynamics simulations, suggest that a kinetically inhibited phase-change may be indirectly responsible for the previously reported anomalous elastic response of silicon. We also present data from a monochromatic x-ray diffraction experiment which show the first observed diffraction from a shock-induced high-pressure phase in silicon.</p> |
| spellingShingle | Stubley, P Experimental studies and simulations of shock-compressed silicon |
| title | Experimental studies and simulations of shock-compressed silicon |
| title_full | Experimental studies and simulations of shock-compressed silicon |
| title_fullStr | Experimental studies and simulations of shock-compressed silicon |
| title_full_unstemmed | Experimental studies and simulations of shock-compressed silicon |
| title_short | Experimental studies and simulations of shock-compressed silicon |
| title_sort | experimental studies and simulations of shock compressed silicon |
| work_keys_str_mv | AT stubleyp experimentalstudiesandsimulationsofshockcompressedsilicon |