Materials research under ITER-like divertor conditions at FOM Rijnhuizen

G. M. Wright; J. Westerhout; R. S. Al; E. Alves; L. C. Alves; N. P. Barradas; M. A. Van Den Berg; D. Borodin; S. Brezinsek; S. Brons; H. J.N. Van Eck; B. De Groot; A. W. Kleyn; W. R. Koppers; O. G. Kruijt; J. Linke; N. J. Lopes Cardozo; M. Mayer; H. J. Van Der Meiden; P. R. Prins; G. J. Van Rooij; J. Scholten; A. E. Shumack; P. H.M. Smeets; G. De Temmerman; W. A.J. Vijvers; J. Rapp

doi:10.1016/j.jnucmat.2010.12.209

Materials research under ITER-like divertor conditions at FOM Rijnhuizen

G. M. Wright, J. Westerhout, R. S. Al, E. Alves, L. C. Alves, N. P. Barradas, M. A. Van Den Berg, D. Borodin, S. Brezinsek, S. Brons, H. J.N. Van Eck, B. De Groot, A. W. Kleyn, W. R. Koppers, O. G. Kruijt, J. Linke, N. J. Lopes Cardozo, M. Mayer, H. J. Van Der Meiden, P. R. PrinsG. J. Van Rooij, J. Scholten, A. E. Shumack, P. H.M. Smeets, G. De Temmerman, W. A.J. Vijvers, J. Rapp

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Abstract

At FOM Rijnhuizen, linear plasma generators are used to investigate plasma-material interactions under high-density (≤10²¹ m ^-3), low-temperature (≤5 eV) plasma bombardment. Research into carbon-based materials has been focused on chemical erosion by hydrogen plasmas. Results from plasma exposure to high-flux (>10²³ H ⁺/m² s) and low-temperature hydrogen plasma indicate silicon carbide has a lower relative rate of gross erosion than other carbon-based materials (e.g. graphite, diamond, carbon-fiber composites) by a factor of 7-10. Hydrogenic retention is the focus of research on tungsten and molybdenum. For target temperatures of 700-1600 K, the temperature dependence of hydrogenic retention is the dominant factor. Damage to the surface by heavy ion irradiation has shown to enhance retention by a factor of 2.5-4.1. Thermal stressing of W via. e-beam thermal cycling also enhances hydrogenic retention by a factor of 2.1 ± 0.2, likely due to the introduction of thermal defects, which act as trapping sites for implanted hydrogenic isotopes.

Original language	English
Pages (from-to)	457-462
Number of pages	6
Journal	Journal of Nuclear Materials
Volume	417
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2010.12.209
State	Published - 1 Oct 2011
Externally published	Yes

Bibliographical note

Funding Information:
This work, supported by the European Communities under the contract of the Association EURATOM/FOM, was carried out within the framework of the European Fusion Programme with financial support from NWO. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

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10.1016/j.jnucmat.2010.12.209

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Wright, G. M., Westerhout, J., Al, R. S., Alves, E., Alves, L. C., Barradas, N. P., Van Den Berg, M. A., Borodin, D., Brezinsek, S., Brons, S., Van Eck, H. J. N., De Groot, B., Kleyn, A. W., Koppers, W. R., Kruijt, O. G., Linke, J., Lopes Cardozo, N. J., Mayer, M., Van Der Meiden, H. J., ... Rapp, J. (2011). Materials research under ITER-like divertor conditions at FOM Rijnhuizen. Journal of Nuclear Materials, 417(1-3), 457-462. https://doi.org/10.1016/j.jnucmat.2010.12.209

@article{0369cb2b61344e929f80d8e4ffef6d70,

title = "Materials research under ITER-like divertor conditions at FOM Rijnhuizen",

abstract = "At FOM Rijnhuizen, linear plasma generators are used to investigate plasma-material interactions under high-density (≤1021 m -3), low-temperature (≤5 eV) plasma bombardment. Research into carbon-based materials has been focused on chemical erosion by hydrogen plasmas. Results from plasma exposure to high-flux (>1023 H +/m2 s) and low-temperature hydrogen plasma indicate silicon carbide has a lower relative rate of gross erosion than other carbon-based materials (e.g. graphite, diamond, carbon-fiber composites) by a factor of 7-10. Hydrogenic retention is the focus of research on tungsten and molybdenum. For target temperatures of 700-1600 K, the temperature dependence of hydrogenic retention is the dominant factor. Damage to the surface by heavy ion irradiation has shown to enhance retention by a factor of 2.5-4.1. Thermal stressing of W via. e-beam thermal cycling also enhances hydrogenic retention by a factor of 2.1 ± 0.2, likely due to the introduction of thermal defects, which act as trapping sites for implanted hydrogenic isotopes.",

author = "Wright, {G. M.} and J. Westerhout and Al, {R. S.} and E. Alves and Alves, {L. C.} and Barradas, {N. P.} and {Van Den Berg}, {M. A.} and D. Borodin and S. Brezinsek and S. Brons and {Van Eck}, {H. J.N.} and {De Groot}, B. and Kleyn, {A. W.} and Koppers, {W. R.} and Kruijt, {O. G.} and J. Linke and {Lopes Cardozo}, {N. J.} and M. Mayer and {Van Der Meiden}, {H. J.} and Prins, {P. R.} and {Van Rooij}, {G. J.} and J. Scholten and Shumack, {A. E.} and Smeets, {P. H.M.} and {De Temmerman}, G. and Vijvers, {W. A.J.} and J. Rapp",

note = "Funding Information: This work, supported by the European Communities under the contract of the Association EURATOM/FOM, was carried out within the framework of the European Fusion Programme with financial support from NWO. The views and opinions expressed herein do not necessarily reflect those of the European Commission. ",

year = "2011",

month = oct,

day = "1",

doi = "10.1016/j.jnucmat.2010.12.209",

language = "אנגלית",

volume = "417",

pages = "457--462",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

number = "1-3",

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Wright, GM, Westerhout, J, Al, RS, Alves, E, Alves, LC, Barradas, NP, Van Den Berg, MA, Borodin, D, Brezinsek, S, Brons, S, Van Eck, HJN, De Groot, B, Kleyn, AW, Koppers, WR, Kruijt, OG, Linke, J, Lopes Cardozo, NJ, Mayer, M, Van Der Meiden, HJ, Prins, PR, Van Rooij, GJ, Scholten, J, Shumack, AE, Smeets, PHM, De Temmerman, G, Vijvers, WAJ & Rapp, J 2011, 'Materials research under ITER-like divertor conditions at FOM Rijnhuizen', Journal of Nuclear Materials, vol. 417, no. 1-3, pp. 457-462. https://doi.org/10.1016/j.jnucmat.2010.12.209

TY - JOUR

T1 - Materials research under ITER-like divertor conditions at FOM Rijnhuizen

AU - Wright, G. M.

AU - Westerhout, J.

AU - Al, R. S.

AU - Alves, E.

AU - Alves, L. C.

AU - Barradas, N. P.

AU - Van Den Berg, M. A.

AU - Borodin, D.

AU - Brezinsek, S.

AU - Brons, S.

AU - Van Eck, H. J.N.

AU - De Groot, B.

AU - Kleyn, A. W.

AU - Koppers, W. R.

AU - Kruijt, O. G.

AU - Linke, J.

AU - Lopes Cardozo, N. J.

AU - Mayer, M.

AU - Van Der Meiden, H. J.

AU - Prins, P. R.

AU - Van Rooij, G. J.

AU - Scholten, J.

AU - Shumack, A. E.

AU - Smeets, P. H.M.

AU - De Temmerman, G.

AU - Vijvers, W. A.J.

AU - Rapp, J.

N1 - Funding Information: This work, supported by the European Communities under the contract of the Association EURATOM/FOM, was carried out within the framework of the European Fusion Programme with financial support from NWO. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

PY - 2011/10/1

Y1 - 2011/10/1

N2 - At FOM Rijnhuizen, linear plasma generators are used to investigate plasma-material interactions under high-density (≤1021 m -3), low-temperature (≤5 eV) plasma bombardment. Research into carbon-based materials has been focused on chemical erosion by hydrogen plasmas. Results from plasma exposure to high-flux (>1023 H +/m2 s) and low-temperature hydrogen plasma indicate silicon carbide has a lower relative rate of gross erosion than other carbon-based materials (e.g. graphite, diamond, carbon-fiber composites) by a factor of 7-10. Hydrogenic retention is the focus of research on tungsten and molybdenum. For target temperatures of 700-1600 K, the temperature dependence of hydrogenic retention is the dominant factor. Damage to the surface by heavy ion irradiation has shown to enhance retention by a factor of 2.5-4.1. Thermal stressing of W via. e-beam thermal cycling also enhances hydrogenic retention by a factor of 2.1 ± 0.2, likely due to the introduction of thermal defects, which act as trapping sites for implanted hydrogenic isotopes.

AB - At FOM Rijnhuizen, linear plasma generators are used to investigate plasma-material interactions under high-density (≤1021 m -3), low-temperature (≤5 eV) plasma bombardment. Research into carbon-based materials has been focused on chemical erosion by hydrogen plasmas. Results from plasma exposure to high-flux (>1023 H +/m2 s) and low-temperature hydrogen plasma indicate silicon carbide has a lower relative rate of gross erosion than other carbon-based materials (e.g. graphite, diamond, carbon-fiber composites) by a factor of 7-10. Hydrogenic retention is the focus of research on tungsten and molybdenum. For target temperatures of 700-1600 K, the temperature dependence of hydrogenic retention is the dominant factor. Damage to the surface by heavy ion irradiation has shown to enhance retention by a factor of 2.5-4.1. Thermal stressing of W via. e-beam thermal cycling also enhances hydrogenic retention by a factor of 2.1 ± 0.2, likely due to the introduction of thermal defects, which act as trapping sites for implanted hydrogenic isotopes.

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SN - 0022-3115

VL - 417

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JO - Journal of Nuclear Materials

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IS - 1-3

ER -

Materials research under ITER-like divertor conditions at FOM Rijnhuizen

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