Testing 3D Printed Carbon Fiber Durability for Next-Gen Fusion Reactors via Proton Irradiation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F25%3A10258173" target="_blank" >RIV/61989100:27360/25:10258173 - isvavai.cz</a>
Result on the web
<a href="https://4spepublications.onlinelibrary.wiley.com/doi/epdf/10.1002/pc.70193" target="_blank" >https://4spepublications.onlinelibrary.wiley.com/doi/epdf/10.1002/pc.70193</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/pc.70193" target="_blank" >10.1002/pc.70193</a>
Alternative languages
Result language
angličtina
Original language name
Testing 3D Printed Carbon Fiber Durability for Next-Gen Fusion Reactors via Proton Irradiation
Original language description
Carbon fiber-reinforced composites are promising candidates for plasma-facing components (PFCs) in next-generation fusion reactors due to their high strength-to-weight ratio, thermal stability, and radiation resistance. However, the effect of high-energy proton irradiation on the mechanical and structural integrity of 3D-printed carbon fiber composites remains underexplored. This study investigates the nanomechanical behavior and microstructural evolution of 3D-printed continuous carbon fiber (CF) composites exposed to proton irradiation at fluences of 5 x 1015, 1 x 1016, and 5 x 1016 ions/cm2 using a Pelletron tandem accelerator. Nanoindentation experiments were conducted at varying loading rates (0.1-0.6 mN/s) to evaluate changes in hardness, elastic modulus, shear stress, and contact pressure. Raman spectroscopy was used to analyze defect evolution via shifts in the D, G, and 2D bands. Results show an initial softening at lower irradiation doses followed by hardening at higher fluences, attributed to defect accumulation, localized amorphization, and structural densification. A strong correlation was established between the ID/IG ratio, crystallinity proportion, and nanomechanical properties. Numerical modeling and regression analyses supported the experimental findings. This work provides new insights into the irradiation response of 3D-printed CF composites and demonstrates the viability of Raman spectroscopy as a non-destructive diagnostic tool for monitoring radiation-induced damage in fusion-relevant materials.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20500 - Materials engineering
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Polymer Composites
ISSN
0272-8397
e-ISSN
1548-0569
Volume of the periodical
Neuveden
Issue of the periodical within the volume
9 July 2025
Country of publishing house
US - UNITED STATES
Number of pages
18
Pages from-to
nestránkováno
UT code for WoS article
001536192500001
EID of the result in the Scopus database
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