On the growth of segregated C layers on top of Fe films on pyrolytic graphite samples during high-fluence D+ irradiation at elevated temperature

Santaniello, A.; Möller, W.; Roth, J.

doi:10.1063/1.342656

Cited by 11 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The interaction of carbon (C) with metal is of great scientific and technological interest [1][2][3][4], as it has a broad range of implications in the materials physics field. Above the C solubility limit, it is easy to form carbides, which are useful for improving the strength and the hardness of metals such as steel.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dissolution and diffusion properties of carbon in tungsten

Liu¹,

Zhou²,

Jin³

et al. 2010

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

We have investigated the structure, solution and diffusion behavior of carbon (C) in tungsten (W) based on first-principles calculations. The single C atom is energetically favorable sitting at the octahedral interstitial site (OIS) with a solution energy of 0.78 eV in W. Double C atoms tend to be paired up at the two neighboring OISs along the (210) direction with a distance of ∼ 3.57 Å and a binding energy of + 0.50 eV. This suggests that a positive attractive interaction between C atoms exists, which might lead to a local higher concentration of C in W and form carbide. Kinetically, the C and vacancy diffusion co-efficients as a function of temperature have been determined, and are 1.32 × 10(-19) m(2) s(-1) and 3.11 × 10(-23) m(2) s(-1) at a typical temperature of 600 K, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Correspondingly, the choice of plasma facing materials (PFM) in Tokamaks plays a key role in the ITER project. Due to their low sputtering erosion, high thermal conductivity, and high melting temperature, tungsten (W) and W alloys are considered as the most promising PFM, in which 3 Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Dissolution and diffusion properties of carbon in tungsten

Liu¹,

Zhou²,

Jin³

et al. 2010

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

“…As remarked above, the transition temperature shifts to slightly lower temperatures for samples with a capping layer ͑510-550°C͒. Santaniello et al 24 irradiated Fe layers on high-purity pyrolitic graphite with D + beams at temperatures ranging from room temperature to 1100 K ͑827°C͒, and their results suggest a carbide formation around 800 K ͑527°C͒. We used in situ XRD to determine the activation energy for the formation of Fe 3 C and found E a C cap = 4.05± 0.83 eV ͑R = 0.9941͒ for samples with a 30 nm C capping layer, and E a no cap = 2.9± 0.27 eV ͑R = 0.9898͒ for samples without capping layer.…”

Section: B Fe-cmentioning

confidence: 75%

“…RBS measurements confirmed that a carbon layer on top of the carbide has formed, and it should be stressed that this segregation occurs, even for samples without an as-deposited C capping layer. Santaniello et al report 24,25 the segregation of a carbon layer on top of Fe films. Sinclair et al 26 used trilayered samples, comparable to the samples with a C capping layer used in this study.…”

Section: B Fe-cmentioning

confidence: 99%

Thin film solid-state reactions forming carbides as contact materials for carbon-containing semiconductors

Leroy

Detavernier

Meirhaeghe

et al. 2007

Journal of Applied Physics

View full text Add to dashboard Cite

Metal carbides are good candidates to contact carbon-based semiconductors ͑SiC, diamond, and carbon nanotubes͒. Here, we report on an in situ study of carbide formation during the solid-state reaction between thin films. The solid-state reaction was examined between 11 transition metals ͑W, Mo, Fe, Cr, V, Nb, Mn, Ti, Ta, Zr, and Hf͒ and an amorphous carbon layer. Capping layers ͑C or TiN͒ of different thicknesses were applied to prevent oxidation. Carbide formation is evidenced for nine metals and the phases formed have been identified ͑for a temperature ranging from 100 to 1100°C͒. W first forms W 2 C and then WC; Mo forms Mo 2 C; Fe forms Fe 3 C; Cr first forms metastable phases Cr 2 C and Cr 3 C 2−x , and finally forms Cr 3 C 2 ; V forms VC x ; Nb transforms into Nb 2 C followed by NbC; Ti forms TiC; Ta first forms Ta 2 C and then TaC; and Hf transforms into HfC. The activation energy for the formation of the various carbide phases has been obtained by in situ x-ray diffraction.

show abstract

Phase transition in Fe films on pyrolytic graphite during D+ irradiation identified through mössbauer spectroscopy

Santaniello¹,

Roth²,

Wagner³

1990

Nuclear Instruments and Methods in Physics Research Section B:

View full text Add to dashboard Cite

On the growth of segregated C layers on top of Fe films on pyrolytic graphite samples during high-fluence D+ irradiation at elevated temperature

Abstract: Articles you may be interested inHigh-fluence Si-implanted diamond: Optimum implantation temperature for SiC formation J. Appl. Phys. 98, 043503 (2005); 10.1063/1.2009073The effects of highfluence neutron irradiation on the superconducting properties of magnetron sputtered NbN films

Cited by 11 publications

References 29 publications

Dissolution and diffusion properties of carbon in tungsten

Dissolution and diffusion properties of carbon in tungsten

Thin film solid-state reactions forming carbides as contact materials for carbon-containing semiconductors

Phase transition in Fe films on pyrolytic graphite during D+ irradiation identified through mössbauer spectroscopy

Contact Info

Product

Resources

About