Probing the correlation between phase evolution and growth kinetics in the oxide layers of tungsten using Raman spectroscopy and EBSD
Source abstract
Abstract
Tungsten, a plasma-facing material for future fusion reactors, may be exposed to air during abnormal operation or accidents. Only limited information is available on the evolution of related oxide phases. This work addresses the effect of substrate orientation on structural variations of tungsten oxides. Annealing experiments in an argon-oxygen atmosphere have been conducted at T = 400 °C under varying oxygen partial pressure and oxidation time. A combination of EBSD, Raman spectroscopy and confocal microscopy shows preferential oxidation initially on {111} base material planes. The oxide scale changes its phase composition dynamically, influencing the kinetics of its growth.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Electronic and Structural Properties of Oxides · Fusion materials and technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (57)
Show source-provided references
1. Thermal diffusivity of tungsten irradiated with protons up to 5.8 dpa10.1016/j.jnucmat.2018.06.041 ↗
2. Assessment of tungsten for use in the ITER plasma facing components10.1016/S0022-3115(98)00285-2 ↗
3. Sputtering properties of tungsten ’fuzzy’ surfaces10.1016/j.jnucmat.2010.12.017 ↗
4. Effect of sputtering on self-damaged ITER-grade10.1016/j.jnucmat.2014.06.037 ↗
5. A full tungsten divertor for ITER: Physics issues and design status10.1016/j.jnucmat.2013.01.008 ↗
6. Status of technology R&D for the ITER tungsten divertor monoblock10.1016/j.jnucmat.2014.12.027 ↗
7. Low-pressure, high-temperature oxidation of tungsten10.1007/BF03378089 ↗
8. On the oxidation mechanism of pure tungsten in the temperature range 600–800 °C10.1016/j.corsci.2011.12.027 ↗
9. Use of tungsten material for the ITER divertor10.1016/j.nme.2016.07.003 ↗
10. JET experience in recovery from large air leak incidents10.1016/0022-3115(93)90316-Q ↗
11. Hydrogen generation from steam reaction with tungsten10.1016/S0022-3115(98)00169-X ↗
12. Predictions of radioactive tungsten release for hypothetical ITER accidents10.13182/FST91-A29538 ↗
13. LOFA and LOVA analyses pertaining to JET/ITER safety design guidance10.1016/0920-3796(91)90074-Z ↗
14. The use of water in a fusion power core10.1016/j.fusengdes.2014.12.013 ↗
15. Recent progress in R&D on tungsten alloys for divertor structural and plasma facing materials10.1016/j.jnucmat.2013.02.074 ↗
16. Advanced smart tungsten alloys for a future fusion power plant10.1088/1361-6587/aa6948 ↗
17. On oxidation resistance mechanisms at 1273K of tungsten-based alloys containing chromium and yttria10.3390/met8070488 ↗
18. New oxidation-resistant tungsten alloys for use in the nuclear fusion reactors10.1088/1402-4896/aa81f5 ↗
19. Self-passivating W-Cr-Y alloys: Characterization and testing10.1016/j.fusengdes.2017.03.001 ↗
20. The hot forging behaviour and its effects on the oxidation behaviour of W-Cr alloy10.1016/j.corsci.2014.03.005 ↗
21. Oxidation of Mo-W-Cr-Pd alloys10.1016/0022-5088(90)90085-X ↗
22. Oxidation resistant Mo-W-Cr-Pd alloys with palladium coatings10.1016/0022-5088(91)90231-R ↗
23. Smart first wall materials for intrinsic safety of a fusion power plant10.1016/j.fusengdes.2018.04.028 ↗
24. Fracture toughness of polycrystalline tungsten alloys10.1016/j.ijrmhm.2010.04.007 ↗
25. The oxidation kinetics of tungsten and the determination of oxygen diffusion coefficient in tungsten trioxide10.1016/0010-938X(80)90092-X ↗
26. Dependence of oxidation on the surface orientation of tungsten grains10.1016/j.ijrmhm.2018.11.012 ↗
27. Kinetics of the oxidation of pure tungsten from 500 to 1300 °C10.1149/1.2427787 ↗
28. Formation of oxide layers on tungsten at low oxygen partial pressures10.1016/j.jnucmat.2017.12.018 ↗
29. The effect of substrate texture and oxidation temperature on oxide texture development in zirconium alloys10.1016/j.jnucmat.2016.10.037 ↗
30. The crystallographic structure of the air-grown oxide on depleted uranium metal10.1016/j.corsci.2016.05.036 ↗
31. The role of crystal orientation in the dissolution of UO2 thin films10.1016/j.corsci.2018.09.012 ↗
32. The O-W (oxygen-tungsten) system10.1007/BF02877593 ↗
33. English · 1961
34. Photoelectrochemical properties of nanostructured tungsten trioxide films10.1021/jp002232q ↗
35. Ion sensitive field effect transistor with amorphous tungsten trioxide gate for pH sensing10.1016/S0925-4005(99)00363-9 ↗
36. Micro- Raman spectroscopic characterization of a tunable electrochromic device for application in smart windows10.1002/jrs.2086 ↗
37. Formation of thin tungsten oxide layers: characterization and exposure to deuterium10.1088/0031-8949/T167/1/014036 ↗
38. Tungsten oxide thin film exposed to low energy He plasma: Evidence for a thermal enhancement of the erosion yield10.1016/j.jnucmat.2016.11.030 ↗
39. Design and first applications of a flexible Raman micro-spectroscopic system for biological imaging10.3233/BSI-160141 ↗
40. The relative performance of AIC, AICC and BIC in the presence of unobserved heterogeneity10.1111/2041-210X.12541 ↗
41. Baseline correction for Raman spectra using an improved asymmetric least squares method10.1039/C4AY00068D ↗
42. Baseline correction with asymmetric least squares smoothing
43. Lineshapes in IR and Raman spectroscopy: A primer
44. DEMO and fusion power plant conceptual studies in Europe10.1016/j.fusengdes.2005.08.055 ↗
45. Infrared and Raman study of WO3 tungsten trioxides and WO3 · xH2O tungsten trioxide hydrates10.1016/0022-4596(87)90359-8 ↗
46. Orthorhombic WO3 formed via a Ti-stabilized WO3 · 13H2O phase10.1006/jssc.1997.7618 ↗
47. Infrared and Raman spectroscopy of WO3 and CdWO410.1016/S0013-4686(01)00364-4 ↗
48. Electrochromic devices based on porous tungsten oxide thin films
49. Laser Raman characterization of tungsten oxide supported on alumina: Influence of calcination temperatures10.1016/0021-9517(85)90231-3 ↗
50. Hexagonal tungsten oxide based electrochromic devices: Spectroscopic evidence for the Li ion occupancy of four-coordinated square windows10.1021/cm8034455 ↗
51. The orthorhombic phase of WO310.1107/S0567740877004130 ↗
52. Correlations between wavenumbers of skeletal vibrations, unit-cell size and molar fraction of aluminium of Y zeolites. removal of non-skeletal al species with H2Na2EDTA10.1039/f19888401447 ↗
53. Low-temperature polymorphism in tungsten trioxide powders and its dependence on mechanical treatments10.1006/jssc.1998.8061 ↗
54. Tungsten blue oxide
55. Weil · 2013 · 1
56. Secondary electron emission in the scanning electron microscope10.1063/1.332840 ↗
57. Grain-orientation related surface effects on polycrystalline tungsten caused by mechanical polishing and etching