Application of Raman spectroscopy to the study of hydrogen in an ion irradiated oxide-dispersion strengthened Fe–12Cr steel

Brimbal, Daniel; Miro, S.; Castro, V. de; Poissonnet, S.; Trocellier, P.; Serruys, Y.; Beck, L.

doi:10.1016/j.jnucmat.2014.01.019

Cited by 9 publications

(8 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the latter class of materials probes, Raman spectroscopy has recently gained more and more momentum thanks to the availability of compact, easy to use, and even portable, devices, to the improved spatial resolution allowing to scan over regions with varying degree of damage, and to the nondestructive character of this optical investigation. Raman spectroscopy has been employed to investigate irradiation effects in various oxides and carbides , occasionally also in situ . Among carbides, various SiC polytypes and composites have been characterized with Raman spectroscopy after irradiation.…”

Section: Introductionmentioning

confidence: 99%

Linear response calculation of first‐order Raman spectra of point defects in silicon carbide

Roma

2016

Physica Status Solidi (a)

View full text Add to dashboard Cite

Raman spectroscopy has been increasingly used, in recent years, to characterize irradiated materials, in particular silicon carbide. The interpretation of the spectra is nevertheless problematic. In this paper, we provide a first step toward a more quantitative interpretation, by providing first‐principles calculations of Raman intensities for various polytypes of silicon carbide (SiC) and for point defects in cubic SiC. We consider here, as benchmarks, the carbon antisite, CSi, and the doubly charged carbon vacancy/carbon antisite complex, VCCSi+2. We show that some care is necessary to understand the contribution of point defects on the Raman spectrum of the material, due to supercell size effects. Calculated Raman spectra of cubic SiC with and without point defect, here a carbon antisite, CSi, in a 216‐atom supercell.

show abstract

Section: Introductionmentioning

confidence: 99%

Linear response calculation of first‐order Raman spectra of point defects in silicon carbide

Roma

2016

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

“…Innovations in nanostructured materials may yield great gains in radiation resistance 2 3 4 5 due to their high sink strength originating from the large interface-to-volume ratio, as interfaces/surfaces are efficient venues for the trapping and recombination of radiation-induced mobile point/line defects 6 7 . Recently, many experimental and theoretical studies have been dedicated to engineering the radiation tolerance of different kinds of nanostructured nuclear materials, such as nanocrystals 8 9 10 11 12 13 14 , multilayers 15 16 17 18 19 20 21 22 , nanoporous solids 23 24 25 26 , nanowires 27 28 29 30 31 , oxide dispersion strengthened (ODS) steels 32 33 34 35 36 37 , nano-surface reconstruction of plasma-facing materials (PFMs) 38 39 40 and others 41 42 43 . Understanding the radiation response of these materials requires precise knowledge of the primary radiation damage induced in their complex three-dimensional (3D) geometries.…”

mentioning

confidence: 99%

IM3D: A parallel Monte Carlo code for efficient simulations of primary radiation displacements and damage in 3D geometry

Yang

Ding

et al. 2015

Sci Rep

View full text Add to dashboard Cite

SRIM-like codes have limitations in describing general 3D geometries, for modeling radiation displacements and damage in nanostructured materials. A universal, computationally efficient and massively parallel 3D Monte Carlo code, IM3D, has been developed with excellent parallel scaling performance. IM3D is based on fast indexing of scattering integrals and the SRIM stopping power database, and allows the user a choice of Constructive Solid Geometry (CSG) or Finite Element Triangle Mesh (FETM) method for constructing 3D shapes and microstructures. For 2D films and multilayers, IM3D perfectly reproduces SRIM results, and can be ∼102 times faster in serial execution and > 104 times faster using parallel computation. For 3D problems, it provides a fast approach for analyzing the spatial distributions of primary displacements and defect generation under ion irradiation. Herein we also provide a detailed discussion of our open-source collision cascade physics engine, revealing the true meaning and limitations of the “Quick Kinchin-Pease” and “Full Cascades” options. The issues of femtosecond to picosecond timescales in defining displacement versus damage, the limitation of the displacements per atom (DPA) unit in quantifying radiation damage (such as inadequacy in quantifying degree of chemical mixing), are discussed.

show abstract

“…Although nanovoids and small gas-bubbles were not detected by TEM in the ODS steel with conclusive proof, since they are also present in the nonirradiated alloy, Raman spectrometry measurements have clearly identified the presence of the H 2 molecule at the depth corresponding to the H 1 implantation profile. 24 Conversely, H 2 molecules have not been observed for H 1 single beam irradiation in the same material demonstrating that the formation of the molecule H 2 is linked to damage or He-associated cavities/bubbles. [26][27][28] …”

Section: Irradiation Modesmentioning

confidence: 95%

“…Most of the studies are still under investigation and very few papers have been so far published. 24,25 These two papers are dealing with the first triple beam irradiation conducted on ODS steel (Fe-12wt% Cr-0.4wt% Y 2 O 3 ) with Fe 81 , He 1 , and H 1 ions (ref. 110910ETJ).…”

Section: Irradiation Modesmentioning

confidence: 99%

“…18,36 Recently, ex situ Raman spectroscopy has evidenced the presence of molecular dihydrogen in an ODS steel (Fe-12wt% Cr-0.4wt% Y 2 O 3 ) after a triple beam irradiation conducted with Fe 81 , He 1 , and H 1 ions. 24 For in situ measurements, a dedicated device has been connected to the Raman spectrometer and to the triple beam chamber (Fig. 6).…”

Section: A Raman Spectroscopymentioning

confidence: 99%

See 1 more Smart Citation

Ion irradiation and radiation effect characterization at the JANNUS-Saclay triple beam facility

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

Application of Raman spectroscopy to the study of hydrogen in an ion irradiated oxide-dispersion strengthened Fe–12Cr steel

Cited by 9 publications

References 28 publications

Linear response calculation of first‐order Raman spectra of point defects in silicon carbide

Linear response calculation of first‐order Raman spectra of point defects in silicon carbide

IM3D: A parallel Monte Carlo code for efficient simulations of primary radiation displacements and damage in 3D geometry

Ion irradiation and radiation effect characterization at the JANNUS-Saclay triple beam facility

Contact Info

Product

Resources

About