The behavior of helium atoms in He+ ion implanted W/Ni bilayer nanocomposite
Source abstract
Abstract
Abstract Helium behavior in W/Ni bilayer nanocomposite was investigated by neutron reflectometry, transmission electron microscopy (TEM) and density functional theory (DFT) calculation. Under He+ ion implantation, the helium enriched layers are formed at W/Ni interface. As the implantation fluence increases to 1 × 1017 ions/cm2, the helium bubbles are observed in W and Ni layer, and the adsorption of helium atoms reaches saturation at W/Ni interface. Moreover, a mechanism that helium atoms trapped at the interface of W/Ni mainly migrate from the W layer is proposed. This mechanism enlightens that dispersing nickel-nanoparticles into tungsten can protect tungsten against helium deleterious effect. That is, modulating the constituent of dispersed nano-particles can effectively improve the helium resistant of materials.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fusion materials and technologies · Advanced materials and composites · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. The expected radiation damage of CSNS target10.1016/j.jnucmat.2011.11.025 ↗
2. ISIS Target Station II: preliminary target and moderator simulations10.1080/1023816031000100941 ↗
3. Fabrication of a tantalum-clad tungsten target for KENS10.1016/S0022-3115(01)00533-5 ↗
4. PSI issues at plasma facing surfaces of blankets in fusion reactors10.1016/S0022-3115(02)01329-6 ↗
5. Recent progress in R&D on tungsten alloys for divertor structural and plasma facing materials10.1016/j.jnucmat.2013.02.074 ↗
6. Designing radiation resistance in materials for fusion energy10.1146/annurev-matsci-070813-113627 ↗
7. R&D for the spallation neutron source mercury target10.1016/S0022-3115(01)00560-8 ↗
8. The role of vacancies and dislocations in the nucleation and growth of gas bubbles in irradiated fissile material10.1016/0022-3115(59)90030-3 ↗
9. Morphological changes of tungsten surfaces by low-flux helium plasma treatment and helium incorporation via magnetron sputtering10.1021/am502370t ↗
10. Migration energy of He in W revisited by ab initio calculations10.1103/PhysRevLett.97.196402 ↗
11. Recent developments in irradiation-resistant steels10.1146/annurev.matsci.38.060407.130315 ↗
12. Irradiation-tolerant nanostructured ferritic alloys: transforming helium from a liability to an asset10.1007/s11837-010-0144-1 ↗
13. Radiation damage tolerant nanomaterials10.1016/j.mattod.2013.10.019 ↗
14. Atomic-scale design of radiation-tolerant nanocomposites10.1557/mrs2010.704 ↗
15. A possible solution of the problem of helium embrittlement10.1016/0022-3115(85)90350-2 ↗
16. Interface structure and radiation damage resistance in Cu-Nb multilayer nanocomposites10.1103/PhysRevLett.100.136102 ↗
17. The effect of excess atomic volume on He bubble formation at fcc–bcc interfaces10.1063/1.3502594 ↗
18. Stable storage of helium in nanoscale platelets at semicoherent interfaces10.1103/PhysRevLett.110.086101 ↗
19. Trapping of implanted He at Cu/Nb interfaces measured by neutron reflectometry10.1063/1.3600642 ↗
20. Detection of helium bubble formation at fcc-bcc interfaces using neutron reflectometry10.1063/1.4813780 ↗
21. Formation of He-rich layers observed by neutron reflectometry in the He-ion-irradiated Cr/W multilayers: effects of Cr/W interfaces on the He-trapping behavior10.1021/acsami.6b07419 ↗
22. Effects of swift heavy ion irradiation and thermal annealing on nearly immiscible W/Ni multilayer structure10.1063/1.2786713 ↗
23. SRIM–The stopping and range of ions in matter (2010)10.1016/j.nimb.2010.02.091 ↗
24. TEM, XRD and nanoindentation characterization of Xenon ion irradiation damage in austenitic stainless steels10.1016/j.jnucmat.2014.07.033 ↗
25. On the use of SRIM for computing radiation damage exposure10.1016/j.nimb.2013.05.008 ↗
26. MR: The multipurpose reflectometer at CSNS10.1080/10448632.2018.1514196 ↗
27. X-ray and neutron reflectivity analysis of thin films and superlattices10.1007/BF00324371 ↗
28. Arrest of He bubble growth in Cu–Nb multilayer nanocomposites10.1016/j.scriptamat.2007.11.007 ↗
29. The influence of interfaces on the formation of bubbles in He-ion-irradiated Cu/Mo nanolayers10.1080/09500839.2010.522210 ↗
30. Properties of helium defects in bcc and fcc metals investigated with density functional theory10.1103/PhysRevB.80.054104 ↗
31. Crystal defects and crystalline interfaces
32. Atoms, molecules, solids, and surfaces: applications of the generalized gradient approximation for exchange and correlation10.1103/PhysRevB.46.6671 ↗
33. Ab initio molecular dynamics for liquid metals10.1103/PhysRevB.47.558 ↗
34. First-principles study on stability and electronic properties of W(001), W(110) and W(111) surfaces10.1016/j.surfcoat.2012.05.096 ↗
35. A comparison of the adsorption and diffusion of hydrogen on the {111} surfaces of Ni, Pd, and Pt from density functional theory calculations10.1021/jp002864c ↗
36. Rolling textures in nanoscale Cu/Nb multilayers10.1016/S1359-6454(03)00428-2 ↗
37. Helium accumulation in metals during irradiation – where do we stand?10.1016/j.jnucmat.2003.09.001 ↗