Nanoscale size effects on the mechanical properties of platinum thin films and cross-sectional grain morphology

Handle URI:
http://hdl.handle.net/10754/621428
Title:
Nanoscale size effects on the mechanical properties of platinum thin films and cross-sectional grain morphology
Authors:
Abbas, K; Alaie, S; Ghasemi Baboly, M; Elahi, M M M; Anjum, Dalaver H.; Chaieb, Sahraoui ( 0000-0002-8053-3610 ) ; Leseman, Z C
Abstract:
© 2016 IOP Publishing Ltd. The mechanical behavior of polycrystalline Pt thin films is reported for thicknesses of 75 nm, 100 nm, 250 nm, and 400 nm. These thicknesses correspond to transitions between nanocrystalline grain morphology types as found in TEM studies. Thinner samples display a brittle behavior, but as thickness increases the grain morphology evolves, leading to a ductile behavior. During evolution of the morphology, dramatic differences in elastic moduli (105-160 GPa) and strengths (560-1700 MPa) are recorded and explained by the variable morphology. This work suggests that in addition to the in-plane grain size of thin films, the transitions in cross-sectional morphologies of the Pt films significantly affect their mechanical behavior.
KAUST Department:
Advanced Nanofabrication and Thin Film Core Lab; Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division
Citation:
Abbas K, Alaie S, Ghasemi Baboly M, Elahi MMM, Anjum DH, et al. (2015) Nanoscale size effects on the mechanical properties of platinum thin films and cross-sectional grain morphology. Journal of Micromechanics and Microengineering 26: 015007. Available: http://dx.doi.org/10.1088/0960-1317/26/1/015007.
Publisher:
IOP Publishing
Journal:
Journal of Micromechanics and Microengineering
Issue Date:
10-Dec-2015
DOI:
10.1088/0960-1317/26/1/015007
Type:
Article
ISSN:
0960-1317; 1361-6439
Sponsors:
The authors would like to acknowledge the support and assistance provided by Electron Micro-Beam Analysis Facility of the Department of Earth and Planetary Sciences and its staff at the University of New Mexico during the preparation and imaging of the samples for this work.
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAbbas, Ken
dc.contributor.authorAlaie, Sen
dc.contributor.authorGhasemi Baboly, Men
dc.contributor.authorElahi, M M Men
dc.contributor.authorAnjum, Dalaver H.en
dc.contributor.authorChaieb, Sahraouien
dc.contributor.authorLeseman, Z Cen
dc.date.accessioned2016-11-03T08:29:05Z-
dc.date.available2016-11-03T08:29:05Z-
dc.date.issued2015-12-10en
dc.identifier.citationAbbas K, Alaie S, Ghasemi Baboly M, Elahi MMM, Anjum DH, et al. (2015) Nanoscale size effects on the mechanical properties of platinum thin films and cross-sectional grain morphology. Journal of Micromechanics and Microengineering 26: 015007. Available: http://dx.doi.org/10.1088/0960-1317/26/1/015007.en
dc.identifier.issn0960-1317en
dc.identifier.issn1361-6439en
dc.identifier.doi10.1088/0960-1317/26/1/015007en
dc.identifier.urihttp://hdl.handle.net/10754/621428-
dc.description.abstract© 2016 IOP Publishing Ltd. The mechanical behavior of polycrystalline Pt thin films is reported for thicknesses of 75 nm, 100 nm, 250 nm, and 400 nm. These thicknesses correspond to transitions between nanocrystalline grain morphology types as found in TEM studies. Thinner samples display a brittle behavior, but as thickness increases the grain morphology evolves, leading to a ductile behavior. During evolution of the morphology, dramatic differences in elastic moduli (105-160 GPa) and strengths (560-1700 MPa) are recorded and explained by the variable morphology. This work suggests that in addition to the in-plane grain size of thin films, the transitions in cross-sectional morphologies of the Pt films significantly affect their mechanical behavior.en
dc.description.sponsorshipThe authors would like to acknowledge the support and assistance provided by Electron Micro-Beam Analysis Facility of the Department of Earth and Planetary Sciences and its staff at the University of New Mexico during the preparation and imaging of the samples for this work.en
dc.publisherIOP Publishingen
dc.subjectcross-sectional nanostructureen
dc.subjectgrain morphologyen
dc.subjectmechanical propertiesen
dc.subjectnanocrystalline materialen
dc.subjectplatinumen
dc.subjectthickness dependenten
dc.subjectthin filmsen
dc.titleNanoscale size effects on the mechanical properties of platinum thin films and cross-sectional grain morphologyen
dc.typeArticleen
dc.contributor.departmentAdvanced Nanofabrication and Thin Film Core Laben
dc.contributor.departmentImaging and Characterization Core Laben
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Micromechanics and Microengineeringen
dc.contributor.institutionDepartment of Mechanical Engineering, University of New Mexico, Albuquerque, NM, United Statesen
dc.contributor.institutionManufacturing Technology and Training Center, University of New Mexico, Albuquerque, NM, United Statesen
dc.contributor.institutionDalio Institute of Cardiovascular Imaging, Weill Cornell Medicine and New York Presbyterian, New York, NY, United Statesen
kaust.authorAnjum, Dalaver H.en
kaust.authorChaieb, Sahraouien
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