Search Results - "NICKEL, K. G"

High temperature water vapour corrosion of rare earth disilicates (Y,Yb,Lu)2Si2O7 in the presence of Al(OH)3 impurities by MAIER, N, NICKEL, K. G, RIXECKER, G

“…Potential environmental barrier silicates based on rare earth disilicates containing Y, Yb and Lu were investigated for their corrosive behaviour in a gas…”
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In situ monitoring and depth-resolved characterization of wet wear of silicon carbide by Presser, V., Krummhauer, O., Kailer, A., Nickel, K.G.

“…Wear of ceramic materials is a complex process and requires characterization methods capable of resolving the complexity of the degradation mechanisms in both…”
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A model for wet silicon carbide tribo-corrosion by Presser, V., Nickel, K.G., Krummhauer, O., Kailer, A.

“…Silicon carbide sustains chemical and mechanical deterioration during tribological exposure under water lubrication. In particular, tribochemical wear leads to…”
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Tribological and hydrothermal behaviour of silicon carbide under water lubrication by Presser, V., Krummhauer, O., Nickel, K.G., Kailer, A., Berthold, C., Raisch, C.

“…In this study the tribological and hydrothermal behaviour of silicon carbide was examined. No significant reaction layer was found after tribochemical…”
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Si/B/C/N/Al precursor-derived ceramics: Synthesis, high temperature behaviour and oxidation resistance by Müller, A., Gerstel, P., Butchereit, E., Nickel, K.G., Aldinger, F.

“…The Si/B/C/N/H polymer T2(1), [B(C 2H 4Si(CH 3)NH) 3] n , was reacted with different amounts of H 3Al·NMe 3 to produce three organometallic precursors for…”
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Raman polarization studies of highly oriented organic thin films by Presser, V., Schuster, B.-E., Casu, M. B., Heinemeyer, U., Schreiber, F., Nickel, K. G., Chassé, T.

“…In this work we report on the capability of polarized Raman spectroscopy to investigate the structure of thin organic films. Diindenoperylene (DIP) thin films…”
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Corrosion of silicon nitride in aqueous acidic solutions: penetration monitoring by Seipel, B, Nickel, K.G

“…The degradation behaviour of silicon nitride in aqueous acidic solutions under steady state conditions was studied at 90 °C and different flow rates. Two…”
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Scanning electron and polarization microscopy study of the variability and character of hollow macro-defects in silicon carbide wafers by Presser, V., Loges, A., Nickel, K.G.

“…Polarization microscopy is a suitable tool for studying strain in appropriately cut SiC single crystals. The outline shape examined by electron microscopy and…”
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Corrosion behavior of Si3N4-TiN composite in sulphuric acid by LAUDISIO, G, SEIPEL, B, RUFFINI, A, NICKEL, K. G

“…The corrosion behavior of a hot pressed Si3N4-TiN electroconductive composite, with Al2O3 and Y2O3 as sintering aids, was studied in 1.8 M H2SO4 aqueous…”
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Direct evidence for continuous linear kinetics in the low-temperature degradation of Y-TZP by Keuper, M., Eder, K., Berthold, C., Nickel, K.G.

“…The kinetics of the tetragonal to monoclinic (t–m) transformation of zirconia in a hydrous environment at 134°C and 3bar pressure was studied. As surface X-ray…”
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Electron probe microanalysis of Mg-B compounds: stoichiometry and heterogeneity of superconductors by Wenzel, T., Nickel, K. G., Glaser, J., Meyer, H.-J., Eyidi, D., Eibl, O.

“…Electron probe microanalysis (EPMA) by wavelength‐dispersive X‐ray spectroscopy (WDX) was applied to determine the chemical composition of oxygen‐bearing…”
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Protection of silicon nitride ceramics against corrosion in acidic aqueous solutions by enforced internal passivation by Seipel, B, Nickel, K.G

“…Silicon nitride ceramics with Y 2O 3 and Al 2O 3 as sintering additives were corroded in 1 N sulphuric acid at 90 °C. Any classical corrosion rate model cannot…”
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Hydrothermal degradation of chemical vapour deposited SiC fibres by KRAFT, T, NICKEL, K. G, GOGOTSI, Y. G

“…The interaction of chemical vapour-deposited (CVD) SiC fibres with H2O at 200 MPa and 400–700°C (673–973K), was investigated. With increasing temperature and…”
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Experimental Determination of the Raman Sampling Depth in Zirconia Ceramics by Presser, V., Keuper, M., Berthold, C., Nickel, K. G.

“…This study provides experimentally determined values for the actual μ-Raman spectroscopy sampling depth in zirconia ceramics (ZrO,2) via line scans on a…”
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Formation and stability of Gd, Y, Yb and Lu disilicates and their solid solutions by Maier, N., Rixecker, G., Nickel, K.G.

“…The synthesis and the phase stability regions of the disilicates of Y, Lu, Yb and Gd have been investigated at temperatures between 1300 and 1600 °C. The mean…”
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Hot-corrosion behaviour of silica and silica-formers : External versus internal control by BERTHOLD, C, NICKEL, K. G

“…Hot corrosion of silica and silica-formers was investigated in powder experiments and using Na2SO4-pellets on polished samples in air or oxygen. While silica…”
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Sea Urchin Spines as a Model-System for Permeable, Light-Weight Ceramics with Graceful Failure Behavior. Part I. Mechanical Behavior of Sea Urchin Spines under Compression by Presser, V., Schultheiß, S., Berthold, C., Nickel, K.G.

“…The spines of pencil and lance urchins Heterocentrotus mammillatus and Phyllacanthus imperialis were studied as a model of light-weight material with high…”
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Experimental and thermodynamic study of the hydrothermal oxidation behavior of Ti3SiC2 powders by Zhang, H.B., Wang, X., Nickel, K.G., Zhou, Y.C.

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Corrosion of non-oxide ceramics by Nickel, Klaus G.

“…Corrosion of non-oxide ceramics is reviewed here concentrating on Si 3N 4- and SiC-based materials. The basic attack types (active I and II, passive, local)…”
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Formation of filamentous carbon from paraformaldehyde under high temperatures and pressures by Gogotsi, Yury G., Nickel, Klaus G.

“…Synthesis of filamentous carbon from paraformaldehyde by high-temperature, high-pressure treatment under “hydrothermal” conditions is reported. Deposition of…”
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