@article{
 title = {Quantitative 3D X-ray Imaging of Densification, Delamination and Fracture in a Micro-Composite under Compression},
 type = {article},
 year = {2015},
 identifiers = {[object Object]},
 pages = {545-553},
 volume = {17},
 websites = {http://doi.wiley.com/10.1002/adem.201400443},
 month = {4},
 id = {36cbee10-89b1-3cf2-8599-a088fb078795},
 created = {2016-03-14T15:03:41.000Z},
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 profile_id = {72235656-d597-370e-a1e5-8453c60fa280},
 group_id = {d0e361cc-e4f9-3361-a178-f7e6d1f6363f},
 last_modified = {2017-05-29T07:40:58.474Z},
 read = {false},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {BøFløystad2015},
 private_publication = {false},
 abstract = {Phase-contrast three-dimensional tomograms showing in unprecedented detail the mechanical response of a micro-composite subjected to a mechanical compression test are reported. The X-ray ptychography images reveal the deformation and fracture processes of a 10m diameter composite, consisting of a spherical polymer bead coated with a nominally 210nm metal shell. The beginning delamination of the shell from the core can be directly observed at an engineering strain of a few percent. Pre-existing defects are shown to dictate the deformation behavior of both core and shell. The strain state of the increasingly compressed polymer core is assessed quantitatively through the local densification at sub-micron resolution, supported by finite element analysis. Nanoscale mechanics is of rapidly growing importance in materials science, biotechnology and medicine, and this study demonstrates the use of coherent X-ray microscopy as a powerful tool for in situ studies of the mechanical properties of nanostructured devices, structures, and composites.},
 bibtype = {article},
 author = {Bø Fløystad, Jostein and Skjønsfjell, Eirik Torbjørn Bakken and Guizar-Sicairos, Manuel and Høydalsvik, Kristin and He, Jianying and Andreasen, Jens Wenzel and Zhang, Zhiliang and Breiby, Dag Werner},
 journal = {Advanced Engineering Materials},
 number = {4}
}

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