Erosion of marker coatings exposed to Pilot-PSI plasma

P. Paris, Antti Hakola, K. Bystrov, G. De Temmerman, M. Aints, I. Jõgi, M. Kiisk, J. Kozlova, M. Laan (Corresponding Author), Jari Likonen, A. Lissovski

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Abstract

In this article, laser induced breakdown spectroscopy (LIBS) has been used to study plasma-induced erosion processes. Samples with ITER-relevant coatings were exposed to controlled plasma fluxes whose parameters were characteristic to those occurring in the reactor walls. After the experiments, erosion of the coatings and changes in their surface structure were determined using LIBS and a set of other surface-diagnostics methods. This way, the applicability of LIBS for in situ erosion/deposition measurements, particularly the influence of plasma exposure on the obtained LIBS spectra could be investigated in detail. Elemental depth profiles, extracted from the LIBS results matched well with those obtained by the other surface analysis methods. However, we observed that plasma-induced changes of the crystalline structure of target materials can significantly alter the laser-ablation rate. This is the main factor which influences the reliability of results obtained by LIBS.
Original languageEnglish
Pages (from-to)S754-S757
Number of pages4
JournalJournal of Nuclear Materials
Volume438
Issue numberSupplement
DOIs
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed
Event20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices - Aachen, Aachen, Germany
Duration: 21 May 201225 May 2012

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Laser induced breakdown spectroscopy
laser-induced breakdown spectroscopy
markers
erosion
Erosion
Plasmas
coatings
Coatings
Surface analysis
Laser ablation
Surface structure
laser ablation
reactors
Fluxes
Crystalline materials
profiles

Cite this

Paris, P., Hakola, A., Bystrov, K., De Temmerman, G., Aints, M., Jõgi, I., ... Lissovski, A. (2013). Erosion of marker coatings exposed to Pilot-PSI plasma. Journal of Nuclear Materials, 438(Supplement), S754-S757. https://doi.org/10.1016/j.jnucmat.2013.01.161
Paris, P. ; Hakola, Antti ; Bystrov, K. ; De Temmerman, G. ; Aints, M. ; Jõgi, I. ; Kiisk, M. ; Kozlova, J. ; Laan, M. ; Likonen, Jari ; Lissovski, A. / Erosion of marker coatings exposed to Pilot-PSI plasma. In: Journal of Nuclear Materials. 2013 ; Vol. 438, No. Supplement. pp. S754-S757.
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abstract = "In this article, laser induced breakdown spectroscopy (LIBS) has been used to study plasma-induced erosion processes. Samples with ITER-relevant coatings were exposed to controlled plasma fluxes whose parameters were characteristic to those occurring in the reactor walls. After the experiments, erosion of the coatings and changes in their surface structure were determined using LIBS and a set of other surface-diagnostics methods. This way, the applicability of LIBS for in situ erosion/deposition measurements, particularly the influence of plasma exposure on the obtained LIBS spectra could be investigated in detail. Elemental depth profiles, extracted from the LIBS results matched well with those obtained by the other surface analysis methods. However, we observed that plasma-induced changes of the crystalline structure of target materials can significantly alter the laser-ablation rate. This is the main factor which influences the reliability of results obtained by LIBS.",
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Paris, P, Hakola, A, Bystrov, K, De Temmerman, G, Aints, M, Jõgi, I, Kiisk, M, Kozlova, J, Laan, M, Likonen, J & Lissovski, A 2013, 'Erosion of marker coatings exposed to Pilot-PSI plasma', Journal of Nuclear Materials, vol. 438, no. Supplement, pp. S754-S757. https://doi.org/10.1016/j.jnucmat.2013.01.161

Erosion of marker coatings exposed to Pilot-PSI plasma. / Paris, P.; Hakola, Antti; Bystrov, K.; De Temmerman, G.; Aints, M.; Jõgi, I.; Kiisk, M.; Kozlova, J.; Laan, M. (Corresponding Author); Likonen, Jari; Lissovski, A.

In: Journal of Nuclear Materials, Vol. 438, No. Supplement, 2013, p. S754-S757.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Erosion of marker coatings exposed to Pilot-PSI plasma

AU - Paris, P.

AU - Hakola, Antti

AU - Bystrov, K.

AU - De Temmerman, G.

AU - Aints, M.

AU - Jõgi, I.

AU - Kiisk, M.

AU - Kozlova, J.

AU - Laan, M.

AU - Likonen, Jari

AU - Lissovski, A.

PY - 2013

Y1 - 2013

N2 - In this article, laser induced breakdown spectroscopy (LIBS) has been used to study plasma-induced erosion processes. Samples with ITER-relevant coatings were exposed to controlled plasma fluxes whose parameters were characteristic to those occurring in the reactor walls. After the experiments, erosion of the coatings and changes in their surface structure were determined using LIBS and a set of other surface-diagnostics methods. This way, the applicability of LIBS for in situ erosion/deposition measurements, particularly the influence of plasma exposure on the obtained LIBS spectra could be investigated in detail. Elemental depth profiles, extracted from the LIBS results matched well with those obtained by the other surface analysis methods. However, we observed that plasma-induced changes of the crystalline structure of target materials can significantly alter the laser-ablation rate. This is the main factor which influences the reliability of results obtained by LIBS.

AB - In this article, laser induced breakdown spectroscopy (LIBS) has been used to study plasma-induced erosion processes. Samples with ITER-relevant coatings were exposed to controlled plasma fluxes whose parameters were characteristic to those occurring in the reactor walls. After the experiments, erosion of the coatings and changes in their surface structure were determined using LIBS and a set of other surface-diagnostics methods. This way, the applicability of LIBS for in situ erosion/deposition measurements, particularly the influence of plasma exposure on the obtained LIBS spectra could be investigated in detail. Elemental depth profiles, extracted from the LIBS results matched well with those obtained by the other surface analysis methods. However, we observed that plasma-induced changes of the crystalline structure of target materials can significantly alter the laser-ablation rate. This is the main factor which influences the reliability of results obtained by LIBS.

U2 - 10.1016/j.jnucmat.2013.01.161

DO - 10.1016/j.jnucmat.2013.01.161

M3 - Article

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JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

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Paris P, Hakola A, Bystrov K, De Temmerman G, Aints M, Jõgi I et al. Erosion of marker coatings exposed to Pilot-PSI plasma. Journal of Nuclear Materials. 2013;438(Supplement):S754-S757. https://doi.org/10.1016/j.jnucmat.2013.01.161