Measurements of the in-plane coefficient of thermal expansion of freestanding single-crystal natural graphite
- Authors
- Mag-isa, Alexander E.; Kim, Jae-Hyun; Oh, Chung-Seog
- Issue Date
- 15-May-2016
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Exfoliated natural graphite; Freestanding; Single-crystal graphite; Negative thermal expansion coefficient
- Citation
- MATERIALS LETTERS, v.171, pp 312 - 314
- Pages
- 3
- Journal Title
- MATERIALS LETTERS
- Volume
- 171
- Start Page
- 312
- End Page
- 314
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/22505
- DOI
- 10.1016/j.matlet.2016.02.110
- ISSN
- 0167-577X
1873-4979
- Abstract
- The in-plane coefficient of thermal expansion (CTE) of freestanding single-crystal natural graphite was directly determined using the thermal bulge method. The Scotch tape method was used to obtain 40nm-thick graphite flakes by the micromechanical cleavage of high-quality graphite flakes. The naturally bulged shape of the samples enabled us to easily measure the CTE without any need for transfer or additional processes. The measured CTE was negative and gradually decreased in magnitude from 1.8 x 10(-6)/degrees C to 0.7 x 10(-6)/degrees C when the samples were heated from 25 degrees C to 225 degrees C. (C) 2016 Elsevier B.V. All rights reserved.
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Collections - School of Mechanical System Engineering > 1. Journal Articles
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