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Auflistung nach Schlagwort "diffusion"

Anzeige der Dokumente 1-16 von 16

A Sharp-Interface Model of the Diffusive Phase Transformation in a Nickel-Based Superalloy

Munk, Lukas; Reschka, Silvia; Maier, Hans Jürgen; Wriggers, Peter; Löhnert, Stefan (Basel : MDPI, 2022)

A sharp-interface model employing the extended finite element method is presented. It is designed to capture the prominent γ-γ′ phase transformation in nickel-based superalloys. The novel combination of crystal plasticity ...
Atomic-Layer-Deposited Al2O3 as Effective Barrier against the Diffusion of Hydrogen from SiNx:H Layers into Crystalline Silicon during Rapid Thermal Annealing

Helmich, Lailah; Walter, Dominic C.; Bredemeier, Dennis; Schmidt, Jan (Weinheim : Wiley-VCH, 2020)

Stacks of hydrogen-lean aluminum oxide, deposited via plasma-assisted atomic-layer-deposition, and hydrogen-rich plasma-enhanced chemical vapor-deposited silicon nitride (SiNx) are applied to boron-doped float-zone silicon ...
Chemische Reaktion, Transport atomarer Sonden und PAC-Messungen an der polarisierbaren Metall-Oxid Grenzfläche Pt/ZrO2(Y2O2)

Langer, Götz (Hannover : Universität, 1998)

[no abstract]
Diffusive vs. konvektive Kristallauflösung in silikatischen Schmelzen

Quetscher, Annette (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2013)

[no abstract]
Fluctuations in catalytic surface reactions

Imbihl, R. (Bristol : IOP Publishing Ltd., 2003)

The internal reaction-induced fluctuations which occur in catalytic CO oxidation on a Pt field emitter tip have been studied using field electron microscopy (FEM) as a spatially resolving method. The structurally heterogeneous ...
Lithium intercalation into titanium dichalcogenide single crystals under pressure

Knobel, Robert (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2013)

[no abstract]
Mass Transfer Limitations of Porous Silicon-Based Biosensors for Protein Detection

Arshavsky Graham, Sofia; Boyko, Evgeniy; Salama, Rahel; Segal, Ester (Washington, DC : American Chemical Society Publ. (ACS), 2020)

Porous silicon (PSi) thin films have been widely studied for biosensing applications, enabling label-free optical detection of numerous targets. The large surface area of these biosensors has been commonly recognized as ...
Mixing between chemically variable primitive basalts creates and modifies crystal cargoes

Neave, David A.; Beckmann, Philipp; Behrens, Harald; Holtz, François ([London] : Nature Publishing Group UK, 2021)

Basaltic crystal cargoes often preserve records of mantle-derived chemical variability that have been erased from their carrier liquids by magma mixing. However, the consequences of mixing between similarly primitive but ...
A new CO2-resistant Ruddlesden-Popper oxide with superior oxygen transport: A-site deficient (Pr0.9La0.1)1.9(Ni0.74Cu0.21Ga0.05)O4+δ

Xue, Jian; Liao, Qing; Chen, Wei; Bouwmeester, Henny J. M.; Wang, Haihui; Feldhoff, Armin (Cambridge : Royal Society of Chemistry, 2015-08-10)

A-site deficient (Pr0.9La0.1)1.9Ni0.74Cu0.21Ga0.05O4+δ ((PL)1.9NCG), with the K2NiF4 structure, is found to exhibit higher oxygen transport rates compared with its cation-stoichiometric parent phase. A stable oxygen ...
Preparation and characterization of metal-organic framework membranes for gas separation

Bux, Helge (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2011)

[no abstract]
Quantitative investigations of rubber blend compatibility and transport phenomena in rubbers influenced by the chemical structure of the low molecular components

Rosca, Cristina (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2007)

[no abstract]
Rapid hydrothermal cooling above the axial melt lens at fast-spreading mid-ocean ridge

Zhang, Chao; Koepke, Jürgen; Kirchner, Clemens; Götze, Niko; Behrens, Harald (London : Nature Publishing Group, 2014-09-11)

Axial melt lenses sandwiched between the lower oceanic crust and the sheeted dike sequences at fast-spreading mid-ocean ridges are assumed to be the major magma source of oceanic crust accretion. According to the widely ...
Solid-State NMR Spectroscopy Study of Cation Dynamics in Layered Na2Ti3O7 and Li2Ti3O7

Volgmann, Kai; Werth, Vanessa; Nakhal, Suliman; Lerch, Martin; Bredow, Thomas; Heitjans, Paul (Berlin : Walter de Gruyter, 2017)

Ti-based materials exhibit suitable properties for usage in secondary Li-and Na-ion batteries and were in the focus of several electrochemical and ion conductivity studies. A material of such interest is layer-structured, ...
Solid-State NMR to Study Translational Li Ion Dynamics in Solids with Low-Dimensional Diffusion Pathways

Volgmann, Kai; Epp, Viktor; Langer, Julia; Stanje, Bernhard; Heine, Jessica; Nakhal, Suliman; Lerch, Martin; Wilkening, Martin; Heitjans, Paul (Berlin : Walter de Gruyter, 2017)

Fundamental research on lithium ion dynamics in solids is important to develop functional materials for, e.g. sensors or energy storage systems. In many cases a comprehensive understanding is only possible if experimental ...
Solubility of H2O and CO2 and diffusion of CO2 in rhyolitic melts : an experimental study = Löslichkeit von H2O und CO2 und Diffusion von CO2 in rhyolitischen Schmelzen : eine experimentelle Untersuchung

Tamic, Nathalie (Hannover : Universität, 2002)

[no abstract]
Ventilation and air quality in city blocks using large-eddy simulation-urban planning perspective

Kurppa, Mona; Hellsten, Antti; Auvinen, Mikko; Raasch, Siegfried; Vesala, Timo; Järvi, Leena (Basel : MDPI AG, 2018)

Buildings and vegetation alter the wind and pollutant transport in urban environments. This comparative study investigates the role of orientation and shape of perimeter blocks on the dispersion and ventilation of ...

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