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dc.contributor.authorZhang, Xinen
dc.contributor.authorWang, Pengfeien
dc.contributor.authorSun, Daweien
dc.contributor.authorLi, Xinen
dc.contributor.authorYu, T. X.en
dc.contributor.authorYang, En-Huaen
dc.contributor.authorYang, Jingleien
dc.identifier.citationZhang, X., Wang, P., Sun, D., Li, X., Yu, T. X., Yang, E.-H., & Yang, J. (2018). Rate dependent behaviors of nickel-based microcapsules. Applied Physics Letters, 112(22), 221905-. doi:10.1063/1.5025363en
dc.description.abstractIn this work, nickel-based microcapsules with liquid core were fabricated through an electroless plating approach. The quasi-static and high speed impact behaviors of microcapsules were examined by in-house assembled setups which are able to evaluate properties of materials and structures in microlevel accurately. Results indicated that the fabricated microcapsules showed strong rate sensitivity and the nominal strength of the capsule increased (up to 62.1%) with the increase in loading rates (up to 8200 s−1). The reduced modulus of nickel-based microcapsules was three orders of magnitude larger than that of the traditional microcapsules. The findings revealed that the fabricated nickel-based microcapsules produced remarkable performances for both static and dynamic loading applications. A high speed camera with stereo microscope was used to observe the failure mode of the microcapsule during the impact, which is of great importance to study the mechanical behaviours of materials and structures. Different failure modes were identified as multi-cracks with more rough and tortuous fracture surfaces and debris were observed for the samples subject to impact loading. Finite element method was employed to further understand the physical phenomenon which fitted well with the experimental results. These results could inspire more fundamental studies on the core-shell microstructures and potential applications in multifunctional materials.en
dc.format.extent5 p.en
dc.relation.ispartofseriesApplied Physics Lettersen
dc.rights© 2018 The Author(s). All rights reserved. This paper was published by AIP Publishing in Applied Physics Letters and is made available with permission of The Author(s).en
dc.subjectElectroless Platingen
dc.subjectDRNTU::Engineering::Environmental engineeringen
dc.subjectNickel-based Microcapsulesen
dc.titleRate dependent behaviors of nickel-based microcapsulesen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen
dc.contributor.schoolInterdisciplinary Graduate School (IGS)en
dc.description.versionPublished versionen
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