Colossal grain growth yields single-crystal metal foils by contact-free annealing

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Title
Colossal grain growth yields single-crystal metal foils by contact-free annealing
Author(s)
Sunghwan Jin; Ming Huang; Youngwoo Kwon; Leining Zhang; Bao-Wen Li; Sangjun Oh; Jichen Dong; Da Luo; Mandakini Biswal; Benjamin V. Cunning; Pavel V. Bakharev; Inyong Moon; Won Jong Yoo; Dulce C. Camacho-Mojica; Yong-Jin Kim; Sun Hwa Lee; Bin Wang; Won Kyung Seong; Manav Saxena; Feng Ding; Hyung-Joon Shin; Rodney S. Ruoff
Publication Date
2018-10
Journal
SCIENCE, v.362, no.6418, pp.1021 - 1025
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Abstract
Single-crystal metals have unique properties due to the absence of grain boundaries and strong anisotropy. Commercial single-crystal metals are usually synthesized by bulk crystal growth or by deposition of thin films onto substrates, and they are expensive and small. We prepare extremely large single-crystal metal foils by ‘contact-free annealing’ from commercial polycrystalline foils. The colossal grain growth (up to 32 cm2) is achieved by minimizing contact stresses, resulting in a preferred in-plane and out-of-plane crystal orientation, and is driven by surface energy minimization during the rotation of the crystal lattice followed by ‘consumption’ of neighboring grains. Industrial scale production of single-crystal metal foils is possible from this discovery. (c) 2017 The Authors, Some rights reserved.
URI
https://pr.ibs.re.kr/handle/8788114/5100
ISSN
0036-8075
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
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