In situ fabrication of copper electrodes on carbon-fiber-reinforced polymer (CFRP) for damage monitoring by printing and flash light sintering
- Authors
- Joo, Sung-Jun; Yu, Myeong-Hyeon; Jeon, Eun-Beom; Kim, Hak-Sung
- Issue Date
- Apr-2017
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Structural health monitoring (SHM); Electrical resistance change method (ERCM); Carbon-fiber-reinforced polymer (CFRP); Flash light sintering; Copper nano-ink
- Citation
- COMPOSITES SCIENCE AND TECHNOLOGY, v.142, pp.189 - 197
- Indexed
- SCIE
SCOPUS
- Journal Title
- COMPOSITES SCIENCE AND TECHNOLOGY
- Volume
- 142
- Start Page
- 189
- End Page
- 197
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/20453
- DOI
- 10.1016/j.compscitech.2017.02.011
- ISSN
- 0266-3538
- Abstract
- The electrical resistance change method (ERCM) is a promising method for structural health monitoring (SHM) of composites. In this work, copper (Cu) nano-ink was printed and successfully sintered on carbon-fiber-reinforced polymer (CFRP) substrate for damage sensing via a flash light sintering method. Before printing, surface-polished CFRP substrate was flash light treated to remove remnant epoxy between carbon fibers. Then, Cu nano-ink was formulated and printed on the CFRP substrate, and the printed Cu nano-ink patterns were sintered within a few milliseconds using a range of flash light irradiation energies. A two-step flash light sintering method to reduce contact resistance between the Cu electrode and CFRP interface was further investigated. Fabricated Cu electrodes were characterized using scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). Using a two-step sintering approach, we fabricated Cu electrodes on CFRP with low contact resistance (0.93 Omega), high durability, and no mechanical degradation of CFRP substrate.
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