Modeling of Point Defects Annihilation in Multilayered Cu/Nb Composites under Irradiation
This work focuses on a mathematical modeling of the response to irradiation of a multilayer composite material. Nonstationary balance equations are utilized to account for production, recombination, transport, and annihilation, or removal, of vacancies and interstitials at interfaces. Although the m...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/9435431 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849408210292703232 |
|---|---|
| author | Sarah Fadda Antonio Mario Locci Francesco Delogu |
| author_facet | Sarah Fadda Antonio Mario Locci Francesco Delogu |
| author_sort | Sarah Fadda |
| collection | DOAJ |
| description | This work focuses on a mathematical modeling of the response to irradiation of a multilayer composite material. Nonstationary balance equations are utilized to account for production, recombination, transport, and annihilation, or removal, of vacancies and interstitials at interfaces. Although the model developed has general validity, Cu/Nb multilayers are used as case study. Layer thickness, temperature, radiation intensity, and surface recombination coefficients were varied systematically to investigate their effect on point defect annihilation processes at interfaces. It is shown that point defect annihilation at interfaces mostly depends on point defect diffusion. The ability of interfaces to remove point defects can be described by a simple map constructed using only two dimensionless parameters, which provides a general tool to estimate the efficiency of vacancy and interstitial removal in multilayer composite materials. |
| format | Article |
| id | doaj-art-3a6295246ea4401a91cf756018ec2093 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-3a6295246ea4401a91cf756018ec20932025-08-20T03:35:51ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/94354319435431Modeling of Point Defects Annihilation in Multilayered Cu/Nb Composites under IrradiationSarah Fadda0Antonio Mario Locci1Francesco Delogu2Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università degli Studi di Cagliari, Via Marengo 2, 09123 Cagliari, ItalyDipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università degli Studi di Cagliari, Via Marengo 2, 09123 Cagliari, ItalyDipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università degli Studi di Cagliari, Via Marengo 2, 09123 Cagliari, ItalyThis work focuses on a mathematical modeling of the response to irradiation of a multilayer composite material. Nonstationary balance equations are utilized to account for production, recombination, transport, and annihilation, or removal, of vacancies and interstitials at interfaces. Although the model developed has general validity, Cu/Nb multilayers are used as case study. Layer thickness, temperature, radiation intensity, and surface recombination coefficients were varied systematically to investigate their effect on point defect annihilation processes at interfaces. It is shown that point defect annihilation at interfaces mostly depends on point defect diffusion. The ability of interfaces to remove point defects can be described by a simple map constructed using only two dimensionless parameters, which provides a general tool to estimate the efficiency of vacancy and interstitial removal in multilayer composite materials.http://dx.doi.org/10.1155/2016/9435431 |
| spellingShingle | Sarah Fadda Antonio Mario Locci Francesco Delogu Modeling of Point Defects Annihilation in Multilayered Cu/Nb Composites under Irradiation Advances in Materials Science and Engineering |
| title | Modeling of Point Defects Annihilation in Multilayered Cu/Nb Composites under Irradiation |
| title_full | Modeling of Point Defects Annihilation in Multilayered Cu/Nb Composites under Irradiation |
| title_fullStr | Modeling of Point Defects Annihilation in Multilayered Cu/Nb Composites under Irradiation |
| title_full_unstemmed | Modeling of Point Defects Annihilation in Multilayered Cu/Nb Composites under Irradiation |
| title_short | Modeling of Point Defects Annihilation in Multilayered Cu/Nb Composites under Irradiation |
| title_sort | modeling of point defects annihilation in multilayered cu nb composites under irradiation |
| url | http://dx.doi.org/10.1155/2016/9435431 |
| work_keys_str_mv | AT sarahfadda modelingofpointdefectsannihilationinmultilayeredcunbcompositesunderirradiation AT antoniomariolocci modelingofpointdefectsannihilationinmultilayeredcunbcompositesunderirradiation AT francescodelogu modelingofpointdefectsannihilationinmultilayeredcunbcompositesunderirradiation |