Chemical sputtering of boronized and oxidized carbon surfaces irradiated by low-energy deuterium atoms

被引：9

作者：

Dominguez-Gutierrez, F. J. ^{[1
]}

Krstic, P. S. ^{[1
]}

机构：

[1] SUNY Stony Brook, Inst Adv Computat Sci, Stony Brook, NY 11749 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2017年 / 121卷 / 21期

关键词：

ELECTRONEGATIVITY EQUALIZATION METHOD; MOLECULAR-DYNAMICS; GRAPHITE; IMPACT;

D O I：

10.1063/1.4984756

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We use molecular dynamics to study the chemical sputtering of boronized and oxidized amorphous carbon surfaces by deuterium irradiation in the range of impact energies of 5-30 eV. We report the sputtering yield as well as mass, energy, and angular spectra of ejected atoms and molecules of both virgin and deuterium saturated BCO surfaces and compare them with our data for a deuterated BC surface and existing theoretical and experimental results for amorphous C:D surfaces. Boron significantly suppresses the erosion of carbon, while the presence of oxygen results in further suppression. Published by AIP Publishing.

引用

页数：8

共 34 条

[1] ASPECTS OF SIMULATION OF NEUTRON DAMAGE BY ION IRRADIATION [J].

ABROMEIT, C .

JOURNAL OF NUCLEAR MATERIALS, 1994, 216 :78-96

[2] Unraveling wall conditioning effects on plasma facing components in NSTX-U with the Materials Analysis Particle Probe (MAPP) [J].

Bedoya, F. ;

Allain, J. P. ;

Kaita, R. ;

Skinner, C. H. ;

Buzi, L. ;

Koel, B. E. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2016, 87 (11)

[3]

Behrisch R., 2007, TOP APPL PHYS, P235

[4] Methane formation in graphite and boron-doped graphite under simultaneous 0+ and H+ irradiation [J].

Chen, AYK ;

Davis, JW ;

Haasz, AA .

JOURNAL OF NUCLEAR MATERIALS, 2001, 290 :61-65

[5] General atom-bond electronegativity equalization method and its application in prediction of charge distributions in polypeptide [J].

Cong, Y ;

Yang, ZZ .

CHEMICAL PHYSICS LETTERS, 2000, 316 (3-4) :324-329

[6] Sputtering of lithiated and oxidated carbon surfaces by low-energy deuterium irradiation [J].

Dominguez-Gutierrez, F. J. ;

Krstic, P. S. .

JOURNAL OF NUCLEAR MATERIALS, 2017, 492 :56-61

[7]

Dominguez-Gutierrez F. J., NUCL MAT ENERGY

[8] Plasma-material interactions in current tokamaks and their implications for next step fusion reactors [J].

Federici, G ;

Skinner, CH ;

Brooks, JN ;

Coad, JP ;

Grisolia, C ;

Haasz, AA ;

Hassanein, A ;

Philipps, V ;

Pitcher, CS ;

Roth, J ;

Wampler, WR ;

Whyte, DG .

NUCLEAR FUSION, 2001, 41 (12R) :1967-2137

[9] XPS, SIMS and FTIR-ATR characterization of boronized graphite from the thermonuclear plasma device RFX-mod [J].

Ghezzi, F. ;

Laguardia, L. ;

Caniello, R. ;

Canton, A. ;

Dal Bello, S. ;

Rais, B. ;

Anderle, M. .

APPLIED SURFACE SCIENCE, 2015, 354 :408-419

[10]

Jacob W, 2007, TOP APPL PHYS, V110, P329

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