Elastic-plastic adhesive impacts of tungsten dust with metal surfaces in plasma environments
2015 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 463, 877-880 p.Article in journal (Refereed) Published
Dust-surface collisions impose size selectivity on the ability of dust grains to migrate in scrape-off layer and divertor plasmas and to adhere to plasma-facing components. Here, we report first experimental evidence of dust impact phenomena in plasma environments concerning low-speed collisions of tungsten dust with tungsten surfaces: re-bouncing, adhesion, sliding and rolling. The results comply with the predictions of the model of elastic-perfectly plastic adhesive spheres employed in the dust dynamics code MIGRAINe for sub- to several meters per second impacts of micrometer-range metal dust.
Place, publisher, year, edition, pages
2015. Vol. 463, 877-880 p.
IdentifiersURN: urn:nbn:se:kth:diva-172698DOI: 10.1016/j.jnucmat.2014.09.064ISI: 000358467200187ScopusID: 2-s2.0-84937636637OAI: oai:DiVA.org:kth-172698DiVA: diva2:850163
QC 201509012015-09-012015-08-272016-05-25Bibliographically approved