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Digitale Medien

Deposition and hydrogen content of carbon films grown by CH+3 ion-beam bombardment (1995)

Plank, H. ; Wang, W. ; Eckstein, W. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 78 (1995), S. 5366-5372

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Carbon deposition and hydrogen codeposition is investigated as a function of ion energy, fluence, and target temperature at normal incidence by bombardment of silicon and pyrolitic graphite substrates with mass selected CH+3 molecules. An amorphous hydrogenated carbon layer (a-C:H) is formed in a thickness range of 40–130 nm at a fluence of 3×1018/cm2. The deposition process, the re-erosion phenomenon, the hydrogen content, and the H/C ratios of the carbon films are studied between 300 and 1000 K in the ion energy range from 150 eV to 3 keV. The experimental results are compared with those of TRIDYN computer simulations and previous experimental results of carbon sputtering by atomic H+ and C+ beams in order to obtain a better understanding of the interaction between hydrocarbon ions and the carbon-based wall materials in fusion devices. © 1995 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.359717

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Characterization of the temperature dependent phase transition of evaporated Ti films on diamond: Phase identification using maximum entropy data analysis (1997)

Miller, S. ; Fischer, R. ; Plank, H. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 82 (1997), S. 3314-3320

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: The carbidization of thin Ti films on natural diamond has been investigated in the temperature range between room temperature and 700 °C using x-ray-photoelectron-spectroscopy. It is possible to separate chemical phases in Ti 2p3/2 electron peaks after deconvolution of the spectrometer's broadening function. We employ Bayesian information, using maximum entropy prior information. The apparatus function is derived from measured spectra of the Fermi edge of a silver sample. Data analysis of reconstructed Ti 2p3/2 core level spectra shows that, with increasing temperature, Ti films are transformed from metallic Ti to a mixed phase consisting of metallic Ti and TiC0.56. No carbidic phase is found with a ratio of carbidic C to Ti smaller than 0.56. The metallic layer is fully transformed to TiC0.56 at 430 °C. At higher temperatures, the concentration ratio of carbidic C to Ti depends nearly linearly on temperature. © 1997 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.365640

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Säulenchromatographie (1954)

Kurtenacker, H. ; Plank, H. ; Cruse, K.

Springer

Fresenius' Zeitschrift für analytische Chemie 143 (1954), S. 286-287

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ISSN: 1618-2650

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00435335

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