Size effect on the deformation mechanisms of nanocrystalline platinum thin films

Size effect on the deformation mechanisms of nanocrystalline platinum thin films

This paper reports a study of time-resolved deformation process at the atomic scale of a nanocrystalline Pt thin film captured in situ under a transmission electron microscope. The main mechanism of plastic deformation was found to evolve from full dislocation activity-enabled plasticity in large gr...

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Veröffentlicht in:Scientific reports 2017-10, Vol.7 (1), p.13264-11, Article 13264
Hauptverfasser: Shu, Xinyu, Kong, Deli, Lu, Yan, Long, Haibo, Sun, Shiduo, Sha, Xuechao, Zhou, Hao, Chen, Yanhui, Mao, Shengcheng, Liu, Yinong
Format: Artikel
Sprache:eng
Schlagworte:
639/301/1023/1026
639/301/357/537
Deformation
Dislocation
Grain size
Humanities and Social Sciences
multidisciplinary
Plastic deformation
Plasticity
Platinum
Science
Science (multidisciplinary)
Thin films
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Zusammenfassung:This paper reports a study of time-resolved deformation process at the atomic scale of a nanocrystalline Pt thin film captured in situ under a transmission electron microscope. The main mechanism of plastic deformation was found to evolve from full dislocation activity-enabled plasticity in large grains (with grain size d  > 10 nm), to partial dislocation plasticity in smaller grains (with grain size 10 nm 
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-13615-6