Article: Nanoscale fast relaxation events in polyethylene
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- Publisher Website: 10.1016/j.scriptamat.2009.12.022
- Scopus: eid_2-s2.0-74749096069
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| Title | Nanoscale fast relaxation events in polyethylene | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Authors | Li, J1 2 Ngan, AHW1 | ||||||||
| Keywords | Creep High-temperature deformation Nanoindentation Polymers | ||||||||
| Issue Date | 2010 | ||||||||
| Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/scriptamat | ||||||||
| Citation | Scripta Materialia, 2010, v. 62 n. 7, p. 488-491 [How to Cite?] DOI: http://dx.doi.org/10.1016/j.scriptamat.2009.12.022 | ||||||||
| Abstract | Discrete relaxation events on the submicron scale were observed during nanoindentation on polyethylene. The frequency with which these events occur increases as the crystallinity of the polyethylene increases, but the effect saturates at high crystallization levels. At a given crystallinity, the occurrence frequency decreases as temperature increases, due possibly to the enhancement of viscous flow as a competing stress relaxation process. The emission rate of the discrete relaxation events also increases with temperature, exhibiting an activation energy of about 0.22 eV. © 2009 Acta Materialia Inc. | ||||||||
| ISSN | 1359-6462 2011 Impact Factor: 2.699 2011 SCImago Journal Rankings: 0.194 | ||||||||
| DOI | http://dx.doi.org/10.1016/j.scriptamat.2009.12.022 | ||||||||
| ISI Accession Number ID | WOS:000274888600015
Funding Information: The work described in this paper was supported by grants from the Research Grants Council (Project No. HKU7156/08E), as well as from the University Grants Committee (Project No. SEG-HKU06) of the Hong Kong Special Administration Region, China. A.H.W.N. would like to acknowledge support in the form of a Senior Research Fellowship from the Croucher Foundation. J.L. is grateful to Dr. Tang Bin for financial support and technical assistance. | ||||||||
| References | References in Scopus |
| dc.contributor.author | Li, J | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| dc.contributor.author | Ngan, AHW | ||||||||
| dc.date.accessioned | 2010-09-06T07:12:33Z | ||||||||
| dc.date.available | 2010-09-06T07:12:33Z | ||||||||
| dc.date.issued | 2010 | ||||||||
| dc.description.abstract | Discrete relaxation events on the submicron scale were observed during nanoindentation on polyethylene. The frequency with which these events occur increases as the crystallinity of the polyethylene increases, but the effect saturates at high crystallization levels. At a given crystallinity, the occurrence frequency decreases as temperature increases, due possibly to the enhancement of viscous flow as a competing stress relaxation process. The emission rate of the discrete relaxation events also increases with temperature, exhibiting an activation energy of about 0.22 eV. © 2009 Acta Materialia Inc. | ||||||||
| dc.description.nature | Link_to_subscribed_fulltext | ||||||||
| dc.identifier.citation | Scripta Materialia, 2010, v. 62 n. 7, p. 488-491 [How to Cite?] DOI: http://dx.doi.org/10.1016/j.scriptamat.2009.12.022 | ||||||||
| dc.identifier.citeulike | 6408351 | ||||||||
| dc.identifier.doi | http://dx.doi.org/10.1016/j.scriptamat.2009.12.022 | ||||||||
| dc.identifier.epage | 491 | ||||||||
| dc.identifier.hkuros | 170079 | ||||||||
| dc.identifier.isi | WOS:000274888600015
Funding Information: The work described in this paper was supported by grants from the Research Grants Council (Project No. HKU7156/08E), as well as from the University Grants Committee (Project No. SEG-HKU06) of the Hong Kong Special Administration Region, China. A.H.W.N. would like to acknowledge support in the form of a Senior Research Fellowship from the Croucher Foundation. J.L. is grateful to Dr. Tang Bin for financial support and technical assistance. | ||||||||
| dc.identifier.issn | 1359-6462 2011 Impact Factor: 2.699 2011 SCImago Journal Rankings: 0.194 | ||||||||
| dc.identifier.issue | 7 | ||||||||
| dc.identifier.openurl | | ||||||||
| dc.identifier.scopus | eid_2-s2.0-74749096069 | ||||||||
| dc.identifier.spage | 488 | ||||||||
| dc.identifier.uri | http://hdl.handle.net/10722/75578 | ||||||||
| dc.identifier.volume | 62 | ||||||||
| dc.language | eng | ||||||||
| dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/scriptamat | ||||||||
| dc.publisher.place | United Kingdom | ||||||||
| dc.relation.ispartof | Scripta Materialia | ||||||||
| dc.relation.references | References in Scopus | ||||||||
| dc.subject | Creep | ||||||||
| dc.subject | High-temperature deformation | ||||||||
| dc.subject | Nanoindentation | ||||||||
| dc.subject | Polymers | ||||||||
| dc.title | Nanoscale fast relaxation events in polyethylene | ||||||||
| dc.type | Article |
Author Affiliations
- The University of Hong Kong
- Zhejiang University