There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 3962 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 3954 | - |
dc.citation.title | NANO LETTERS | - |
dc.citation.volume | 9 | - |
dc.contributor.author | Park, Hyun Soon | - |
dc.contributor.author | Kwon, Oh Hoon | - |
dc.contributor.author | Baskin, J. Spencer | - |
dc.contributor.author | Barwick, Brett | - |
dc.contributor.author | Zewail, Ahmed H. | - |
dc.date.accessioned | 2023-12-22T07:38:04Z | - |
dc.date.available | 2023-12-22T07:38:04Z | - |
dc.date.created | 2014-11-12 | - |
dc.date.issued | 2009-11 | - |
dc.description.abstract | The in situ martensitic phase transformation of Iron, a complex solid-state transition Involving collective atomic displacement and Interface movement, Is studied In real time by means of four-dimensional (4D) electron microscopy. The Iron nanofilm specimen Is heated at a maximum rate of -1011 K/s by a single heating pulse, and the evolution of the phase transformation from body-centered cubic to face-centered cubic crystal structure Is followed by means of single-pulse, selected-area diffraction and real-space imaging. Two distinct components are revealed in the evolution of the crystal structure. The first, on the nanosecond time scale, is a direct martensitic transformation, which proceeds In regions heated Into the temperature range of stability of the fee phase, 1185-1667 K. The second, on the microsecond time scale, represents an indirect process for the hottest central zone of laser heating, where the temperature Is initially above 1667 K and cooling Is the ratedetermining step. The mechanism of the direct transformation involves two steps, that of (barrier-crossing) nucleation on the reported nanosecond time scale, followed by a rapid grain growth typically in ∼100 ps for 10 nm crystallites. | - |
dc.identifier.bibliographicCitation | NANO LETTERS, v.9, no.11, pp.3954 - 3962 | - |
dc.identifier.doi | 10.1021/nl9032704 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.scopusid | 2-s2.0-72849145288 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/8734 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=72849145288 | - |
dc.identifier.wosid | 000271566400050 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Direct Observation of Martensitic Phase-Transformation Dynamics in Iron by 4D Single-Pulse Electron Microscopy | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.