Search Results - "Wittberg, T. N."

Oxidation kinetics of silicon carbide whiskers studied by X-ray photoelectron spectroscopy by PU SEN WANG, HSU, S. M, WITTBERG, T. N

“…Silicon carbide whisker surfaces were characterized by X-ray photoelectron spectroscopy (XPS) to determine changes in the surface oxide film which occurred as…”
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A characterization of Kapton polyimide by X-ray photoelectron spectroscopy and energy dispersive spectroscopy by PU SEN WANG, WITTBERG, T. N, WOLF, J. D

“…Kapton polyimide films were characterized by X-ray photoelectron spectroscopy (XPS) and energy dispersive spectroscopy (EDS). The samples characterized include…”
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Barium adsorption on nickel: Auger electron spectroscopy and work‐function measurements by Wittberg, T. N.

“…The work function phi of a metal surface can be lowered by the adsorption of submonolayer quantities of alkali and alkaline-earth metals. Changes in work…”
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Surface oxidation kinetics of Si3N4-4%Y2O3 powders studied by Bremsstrahlung-excited Auger spectroscopy by PU SEN WANG, HSU, S. M, MALGHAN, S. G, WITTBERG, T. N

“…Silicon nitride powder containing 4.0 wt % Y2O3 was heated in air between 900 and 1000 C. The average SiO2 layer thickness on the Si3N4 powder particles, as a…”
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Effects of α-silicon nitride powder processing on surface oxidation kinetics by Wang, Pu Sen, Malghan, Subhas G., Hsu, Stephen M., Wittberg, T.N.

“…The oxidation of two α–Si3N4 powders has been studied using x-ray photoelectron spectroscopy (XPS) and Bremsstrahlung-excited Auger electron spectroscopy…”
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Aluminium hydroxide growth on aluminium surfaces exposed to an air/1% NO2 mixture by WITTBERG, T. N, WOLF, J. D, PU SEN WANG

“…Aluminum samples were exposed to a mixture of 1% NO2 in air at 100, 52 and < 5% relative humidity. Auger electron spectroscopy depth profiling showed that for…”
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Surface oxide dissolution in titanium subhydrides studied by Auger electron spectroscopy and X-ray photoelectron spectroscopy by PU SEN WANG, WITTBERG, T. N

“…The surface sensitive spectroscopic techniques of Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS) have been applied to the study…”
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XPS study of the dehydration of clay and kaolin powders by Wittberg, T. N., Wang, Pu Sen

“…X‐ray photoelectron spectroscopy (XPS) was used to analyze samples of a commercial clay powder and a kaolin standard. Samples were analyzed both in the…”
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Surface oxidation kinetics of SiC powders in wet and dry air studied by x-ray photoelectron spectroscopy and bremsstrahlung-excited Auger electron spectroscopy by Wittberg, Thomas N., Wang, Pu Sen, Hsu, Stephen M.

“…Silicon carbide powder samples were heated at temperatures between 600 °C and 850 °C in wet and dry air to investigate the effect of moisture on the oxidation…”
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Surface characterization of 1,3,5-triamino-2,4,6-trinitrobenzene by X-ray photoelectron spectroscopy and Fourier transform nuclear magnetic resonance by PU SEN WANG, WITTBERG, T. N

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Low‐temperature oxygen diffusion in alpha titanium characterized by Auger sputter profiling by Wittberg, T. N., Wolf, J. Douglas, Keil, R. Gerald, Wang, Pu Sen

“…Anodic TiO2 films were grown on titanium foils under galvanostatic conditions at 20 mA/cm2 in an aqueous saturated solution of ammonium tetraborate. The…”
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Solid Lubrication of Silicon Nitride with Cesium-Based Compounds: Part II - Surface Analysis by Rosado, Lewis, Forster, Nelson H., Wittberg, Thomas N.

“…Energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and Auger electron spectroscopy (AES) were used to characterize the wear…”
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The Nitridation of a Silicon Powder Studied by XPS and X-ray-induced AES by Sen Wang, Pu, Wittberg, Thomas N.

“…XPS and x‐ray‐induced AES have been used to study the reaction layers formed on silicon powder samples heated in ultra‐high purity nitrogen at temperatures…”
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Stability of superconducting Y1Ba2Cu3O7-x phase at 925°C in air by BINOD KUMAR, HARMER, R. S, WITTBERG, T. N, CORDONNIER, S. K, RAI, A. K

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Surface oxidation kinetics of Si3N4-4 percent Y2O3 powders studied by bremsstrahlung-excited Auger spectroscopy by Wang, P U S, Hsu, S M, Malghan, S G, Wittberg, T N

“…Samples of silicon nitride powder containing 4.0 percent Y2O3 in weight were heated in air at temperatures between 900 and 1000 C. The average SiO2 layer…”
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Surface Oxidation Kinetics of Si sub 3 N sub 4 --4Y sub 2 O sub 3 Powders Studied by Bremsstrahlung-Excited Auger Spectroscopy by Wang, P S, Hsu, S M, Malghan, S G, Wittberg, T N

“…Samples of silicon nitride powder containing 4.0 wt.% Y sub 2 O sub 3 were heated in air at temperatures between 900-1000 deg C. The average SiO sub 2 layer…”
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Aluminium Hydroxide Growth on Aluminium Surfaces Exposed to an Air /1% NO sub 2 Mixture by Wittberg, T N, Wolf, J D, Wang, P S

“…Aluminium samples were exposed to a mixture of 1% NO sub 2 in air at 100, 52 and < 5% relative humidity. Auger electron spectroscopy depth profiling showed…”
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Stability of superconducting Y sub 1 Ba sub 2 Cu sub 3 O sub 7 sub - sub x phase at 925 degrees C in air by Kumar, Binod, Harmer, R S, Wittberg, T N

“…The material decomposes to BaCO sub 3 , CuO, and Y sub 2 O sub 3 because of the action of moisture and atmospheric gases. Decomposed materials surround grains…”
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Stability of Superconducting Y sub 1 Ba sub 2 Cu sub 3 O sub 7--x Phase at 925 deg C in Air by Kumar, B, Harmer, R S, Wittberg, T N, Cordonnier, S K, Rai, A K

“…The stability of superconducting Y sub 1 Ba sub 2 Cu sub 3 O sub 7--x material at 925 deg C in the normal atmosphere has been investigated. The material…”
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Stability of superconducting Y1Ba2Cu3O(7-x) phase at 925 C in air by Kumar, Binod, Harmer, R S, Wittberg, T N, Cordonnier, S K, Rai, A K

“…The stability of superconducting Y1Ba2Cu3O(7-x) material at 925 C in the normal atmosphere is analyzed. The material decomposes to BaCO3, CuO, and Y2O3 due to…”
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