Carbon fiber composites application in ITER plasma facing components

Barabash, V.; Akiba, Masato; Bonal, J.P.; Federici, G.; Matera, R.; Nakamura, Kazuyuki; Pacher, H.D.; Rödig, M.; Vieider, G.; Wu, C.H.

doi:10.1016/s0022-3115(98)00267-0

Cited by 29 publications

(15 citation statements)

References 20 publications

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“…Parameters in terms of physical, mechanical properties or average densities of these CFC grades are listed in many publications. 25,[29][30][31][32] The development of the CFC/Cu joint was one of the most challenging R&D efforts. The main problem is a large mismatch of thermal expansion between CFC and Cu alloy heat sink.…”

Section: Cfc Materials and The Componentsmentioning

confidence: 99%

“…Active Metal Casting (AMC Ò ), developed in 1995 by Plansee (Austria) consists of casting Cu onto a laser textured and titanium activated CFC surface. 7,33) Beside this well established technology, several brazing methods for joining CFC to copper have been developed, mainly by JAERI (Japan) 29,32,34) and more recently by Ansaldo Ricerche (Italy). 28,35,36) …”

Section: Cfc Materials and The Componentsmentioning

confidence: 99%

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ITER Relevant High Heat Flux Testing on Plasma Facing Surfaces

2005

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The current ITER design employs beryllium, carbon fiber reinforced composite and tungsten as plasma facing materials. Since these materials are exposed to high heat fluxes during the operation, it is essential to perform high heat flux tests for R&D of ITER components. Static heat loads corresponding to cycling loads during normal operation, are estimated to be up to 20 MW/m 2 in the divertor targets and around 0.5 MW/m 2 at the first wall in ITER. For the static high heat flux testing, tests in electron beam facilities, particle beam facilities, IR heater and in-pile tests have been performed. Another type, more critical heat loads, which have high power densities and short durations, corresponding to transient events, i.e. plasma disruption, vertical displacement events (VDEs) and edge localized modes (ELMs) deliver considerable heat flux onto the plasma facing materials. For this purpose, tests in electron beam (short pulses), plasma gun and high power laser facilities have been carried out. The present work summarizes the features of these facilities and recent experimental results as well as the current selection of ITER plasma facing components.

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Section: Cfc Materials and The Componentsmentioning

confidence: 99%

Section: Cfc Materials and The Componentsmentioning

confidence: 99%

ITER Relevant High Heat Flux Testing on Plasma Facing Surfaces

2005

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“…The major disadvantage of carbon as plasma-facing material is its intense chemical reactivity with hydrogen (and oxygen), resulting in high erosion yield due to chemical erosion and the ability to trap large amounts of hydrogen in re-deposited layers. Nevertheless, carbon is still the material chosen for the strike point position in the present ITER design [1,2] because of its superior thermomechanical properties, especially its high thermal shock resistance when fibre reinforced [3].…”

Section: Introductionmentioning

confidence: 99%

Thermal stability and nano-structure of metal-doped carbon layers

Balden

Adelhelm

Sikora

2007

Journal of Nuclear Materials

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“…Some of these extended applications include nuclear reactor components [6], brake discs for high speed vehicles [7], components for chemical plant equipment [8], artificial body parts [9], and bipolar plates for polymer electrolyte membrane (PEM) fuel cells [10][11][12][13]. Of significance is that these areas do not require the very high levels of mechanical properties needed for space and military applications.…”

Section: Preparation Of C/c Compactsmentioning

confidence: 99%

Influence of hot-pressing pressure on the densification of short-carbon-fiber-reinforced, randomly oriented carbon/carbon composite

Raunija¹

2015

Carbon letters

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The prime objective of this research was to study the influence of hot-pressing pressure and matrix-to-reinforcement ratio on the densification of short-carbon-fiber-reinforced, randomly oriented carbon/carbon-composite. Secondary objectives included determination of the physical and mechanical properties of the resulting composite. The 'hybrid carbon-fiberreinforced mesophase-pitch-derived carbon-matrix' composite was fabricated by hot pressing. During hot pressing, pressure was varied from 5 to 20 MPa, and reinforcement wt% from 30 to 70. Densification of all the compacts was carried at low impregnation pressure with phenolic resin. The effect of the impregnation cycles was determined using measurements of microstructure and density. The results showed that effective densification strongly depended on the hot-pressing pressure and reinforcement wt%. Furthermore, results showed that compacts processed at lower hot-pressing pressure, and at higher reinforcement wt%, gained density gradually during three densification cycles and showed the symptoms of further gains with additional densification cycles. In contrast, samples that were hot-pressed at moderate pressure and at moderate reinforcement wt%, achieved maximum density within three densification cycles. Furthermore, examination of microstructure revealed the formation of cracks in samples processed at lower pressure and with low reinforcement wt%.

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Carbon fiber composites application in ITER plasma facing components

Cited by 29 publications

References 20 publications

ITER Relevant High Heat Flux Testing on Plasma Facing Surfaces

ITER Relevant High Heat Flux Testing on Plasma Facing Surfaces

Thermal stability and nano-structure of metal-doped carbon layers

Influence of hot-pressing pressure on the densification of short-carbon-fiber-reinforced, randomly oriented carbon/carbon composite

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