Low energy sputter yields for diamond, carbon–carbon composite, and molybdenum subject to xenon ion bombardment

Blandino, John J.; Goodwin, David G.; Garner, Charles E.

doi:10.1016/s0925-9635(00)00350-2

Cited by 36 publications

(16 citation statements)

References 20 publications

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“…1 Detailed measurements of the erosion rate of various materials due to xenon ion bombardment have been reported previously, [2][3][4] and the results in the literature surveyed in Ref. 5.…”

Section: Introductionmentioning

confidence: 98%

Sputtering yield measurements during low energy xenon plasma bombardment

Doerner

Whyte

Goebel³

2003

Journal of Applied Physics

149

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The sputtering yields of molybdenum, titanium, beryllium, and carbon have been measured during xenon ion bombardment from a plasma in the energy range between 10 and 200 eV. The erosion rates of Mo, Be, and C are measured both spectroscopically in the plasma and using the standard weight loss technique. Spectroscopic measurements of Ti sputtering yields, where no atomic physics data is available, are normalized to the weight loss measurements. The erosion rates of the metals decrease with the reduced mass of the metal-xenon combination and decrease with the increasing metal's binding energy, as expected. The erosion results for bombardment of graphite indicate that the sputtering rate of carbon, as atoms, from the surface is insufficient to explain the total carbon weight loss measured. The multiple mechanisms for carbon erosion during plasma bombardment are discussed and the sputter rates of carbon atoms and carbon dimers are presented.

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Section: Introductionmentioning

confidence: 98%

Sputtering yield measurements during low energy xenon plasma bombardment

Doerner

Whyte

Goebel³

2003

Journal of Applied Physics

149

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“…With increasing temperature the <111>-<110> dumbbell transitions are activated, providing a rotation of the axis of migrating crowdions and hence providing a basis for a viable mechanism for three-dimensional diffusion. Figure 1 compares the sputtering yields for Xe+ ion bombardment of a Mo (100) surface calculated in the present paper with the experimental data obtained from the literature [9][10][11][12][13][14]. In addition, we have constructed two pair potentials for description of the Mo-Xe interaction.…”

Section: Ibmm 2010mentioning

confidence: 83%

Simulation Of Ion Implantation Into Nuclear Materials And Comparison With Experiment

Insepov

Yun

et al. 2011

AIP Conference Proceedings

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Radiation defects generated in Mo formed by sub-MeV Xe ion implantations were studied by atomistic molecular dynamics based on interatomic potential matched to density functional calculations. The results of the simulations were qualitatively compared with defect distributions in CeO 2 and CeLaO 2 crystals used as surrogate materials for UO 2 obtained from experiments by implantation of these ions at a dose of 1×10 17 ions/cm 2 at several temperatures. A combination of in situ Transmission Electron Microscopy (TEM) and ex situ TEM experiments was used to study the evolution of defect clusters during implantation of Xe and Kr ions at energies of 150-700 keV, depending on the experimental conditions. The simulation and irradiation were performed on thin-film, single-crystal materials. The formation of defects, dislocation loops, and precipitates was studied by simulation and compared to experiment. Various sets of quantitative experimental results were obtained to characterize the dose and temperature effects of irradiation. These experimental results include size distributions of dislocation loops, voids, and gas bubble structures created by irradiation.

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“…Large amounts of experimental data are available for the normal incidences of graphite, diamond, and pyrographite, [8][9][10][11][12][13][14][15] that can be used to derive some empirical formula by curve-fitting, and this approach is widely used in engineering applications. In contrast, only small amounts of experimental data are available to derive an empirical formula for the angular dependence of sputtering.…”

Section: Sputtering Yield Of Carbonmentioning

confidence: 99%

“…However, experimental evidence indicates that the amount of sputtering cannot be neglected. 10,11) Understanding this discrepancy is an urgent problem in the development of the JIEDI tool for developing practical sputtering yield models for C/C. Kenmotsu et al have suggested that adsorption of xenon atoms at the carbon surface enhances the sputtering yield.…”

Section: Semi-empirical Formulamentioning

confidence: 99%

Sputtering Yield of Carbon-Carbon Composite Due to Xenon Ion Bombardment in Ion Engines

Nakano

Hosoda

Nishiyama

2015

Trans. Japan Soc. Aero. S Sci.

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The angular and energy dependence of the sputtering yield of a carbon-carbon composite due to xenon ion bombardment was investigated. Instead of assuming surfaces to be flat, a simple carbon fiber distribution model was introduced to account for the carbon-carbon composite surface structure observed using a scanning electron microscope. Yamamura's semi-empirical sputtering formula, which accounted for 14% xenon adsorption, was used to calculate the sputtering yield of the carbon fiber surface. The proposed model provided fairly good estimates of the angular and energy dependence of the sputtering yield for the carbon-carbon composite. A comparative analysis of sputtering yield models demonstrated that the proposed model most accurately predicted both the accelerator and decelerator grid mass changes in the ®10 PM ion engine endurance test. In this paper, we present sputtering yield data over a range of xenon incidence energies from 0 to 2 keV and angles of incidence from 0 (normal incidence) to 90°.

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Low energy sputter yields for diamond, carbon–carbon composite, and molybdenum subject to xenon ion bombardment

Cited by 36 publications

References 20 publications

Sputtering yield measurements during low energy xenon plasma bombardment

Sputtering yield measurements during low energy xenon plasma bombardment

Simulation Of Ion Implantation Into Nuclear Materials And Comparison With Experiment

Sputtering Yield of Carbon-Carbon Composite Due to Xenon Ion Bombardment in Ion Engines

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