Testing 3D Printed Carbon Fiber Durability for Next-Gen Fusion Reactors via Proton Irradiation

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Testing 3D Printed Carbon Fiber Durability for Next-Gen Fusion Reactors via Proton Irradiation

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Testing 3D Printed Carbon Fiber Durability for Next-Gen Fusion Reactors via Proton Irradiation

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20500 - Materials engineering

Projekt

—

Návaznosti

O - Projekt operacniho programu

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polymer Composites

ISSN

0272-8397

e-ISSN

1548-0569

Svazek periodika

Neuveden

Číslo periodika v rámci svazku

9 July 2025

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

nestránkováno

Kód UT WoS článku

001536192500001

EID výsledku v databázi Scopus

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