1.

Record Nr.

UNINA9910300550903321

Autore

Thompson Matt

Titolo

Helium Nano-bubble Formation in Tungsten : Measurement with Grazing-Incidence Small Angle X-ray Scattering / / by Matt Thompson

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2018

ISBN

3-319-96011-3

Edizione

[1st ed. 2018.]

Descrizione fisica

1 online resource (XVII, 112 p. 40 illus., 6 illus. in color.)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053

Disciplina

548

Soggetti

Crystallography

Nuclear fusion

Plasma (Ionized gases)

Materials science

Force and energy

Nanoscience

Nanostructures

Crystallography and Scattering Methods

Nuclear Fusion

Plasma Physics

Energy Materials

Nanoscale Science and Technology

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Introduction -- Developing a GISAXS Model to Enable Study of Nano-bubble Formation -- Validation of GISAXS Model with TEM Data -- Effect of He Fluence on Nano-bubble Growth -- Effect of Sample Temperature and Transient Heat Loading on Nano-bubble Growth -- Investigating Synergistic Effects on W Performance with Magnum-PSI -- Conclusion.

Sommario/riassunto

This PhD thesis characterises the damage that occurs in tungsten when it is exposed to a fusion-like environment. The book presents pioneering work on the use of grazing-incidence small-angle X-ray



scattering (GISAXS) to measure nano-bubble formation in tungsten exposed to helium plasma. The phenomenon of nanoscale bubble formation within metals during helium plasma exposure can lead to undesirable changes in the material properties, such as complex nanoscale surface modification or a reduction in thermal conductivity. As a result of this work, it is now possible to quantify how nanobubble behaviour changes within different materials, and under different plasma conditions. In 2015 the author published the first GISAXS study of helium-induced nanobubble formation in tungsten, demonstrating the viability of using GISAXS for this work. This paper has generated significant interest from the international fusion community and was selected as one of the highlights for the journal Nuclear Fusion.