On-Line Topographic Measurements of Lubricated Metallic Sliding Surfaces PDF Download
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Author: Spyridon Korres Publisher: KIT Scientific Publishing ISBN: 3731500175 Category : Science Languages : en Pages : 172
Book Description
Moderne Methoden wurden kombiniert, um die topographische Änderungen von gleitenden geschmierten metallischen Oberflächen on-line zu untersuchen. Die Experimente wurden mit einem neuartigen Tribometer durchgeführt, welches in-situ topographische Messungen ermöglicht. Die Ergebnisse zeigen, wie lamellare Verschleißpartikel auf gleitende Kupfer Oberflächen entstehen. Weitere Versuche ermöglichten die Entwicklung einer Näherungsmethode zur Trennung von Pflüg- und Scherbeiträge der Reibkraft.
Author: Spyridon Korres Publisher: KIT Scientific Publishing ISBN: 3731500175 Category : Science Languages : en Pages : 172
Book Description
Moderne Methoden wurden kombiniert, um die topographische Änderungen von gleitenden geschmierten metallischen Oberflächen on-line zu untersuchen. Die Experimente wurden mit einem neuartigen Tribometer durchgeführt, welches in-situ topographische Messungen ermöglicht. Die Ergebnisse zeigen, wie lamellare Verschleißpartikel auf gleitende Kupfer Oberflächen entstehen. Weitere Versuche ermöglichten die Entwicklung einer Näherungsmethode zur Trennung von Pflüg- und Scherbeiträge der Reibkraft.
Author: Schwark, Tabea Gisela Publisher: KIT Scientific Publishing ISBN: 3731507595 Category : Grinding and polishing Languages : en Pages : 178
Book Description
Soft Magnetic Composites (SMCs) typically consist of large iron particles coated with a fairly thin inorganic layer. The combination of soft particles with a brittle layer causes, however, a rather poor mechanical behaviour of the SMCs. The particle boundaries of the specific SMC Somaloy 700 3P can be classified into four different types according to the complexity of their layers. Tests on both micro- and macroscale showed that the particle-boundary interface is critical in terms of failure.
Author: Ganser, Markus Publisher: KIT Scientific Publishing ISBN: 3731510472 Category : Technology & Engineering Languages : en Pages : 272
Book Description
Solid state batteries with a lithium metal electrode are considered the next generation of high energy battery technology. Unfortunately, lithium metal is prone to harmful protrusion or dendrite growth which causes dangerous cell failure. Within this work the problem of protrusion growth is tackled by deriving a novel electro-chemo-mechanical theory tailored for binary solid state batteries which is then used to discuss the impact of mechanics on interface stability by numerical studies.
Author: Kennerknecht, Tobias Publisher: KIT Scientific Publishing ISBN: 3731502933 Category : Technology (General) Languages : en Pages : 284
Book Description
Custom built setups were developed to investigate micro samples during quasistatic and cyclic testing in tension, compression and bending. Micro molded CuAl10Ni5Fe4-samples showed similar fatigue behavior compared to macroscopic samples due to both the sample size and microstructure being scaled down with the manufacturing process. Results from cyclic three-point bending tests on micro molded 3Y-TZP suggested that a minimum crack extension is necessary to develop cyclically degradable shielding.
Author: Feuchter, Manuel Klaus Ludwig Publisher: KIT Scientific Publishing ISBN: 3731502615 Category : Technology & Engineering Languages : en Pages : 258
Book Description
This work furthers the overall understanding of a 3w-measurement, by considering previously unexamined macroscopic influence factors within measurement by Finite Element simulations (FES). Moreover, new measuring configurations are developed to determine (an)isotropic thermal conductivities of nanoscale samples. Since no analytic solutions are available for these configurations, a new evaluation methodology is presented to determine emergent thermal conductivities by FES and Neural Networks.
Author: Eslami, Reza Publisher: KIT Scientific Publishing ISBN: 3731505835 Category : Technology (General) Languages : en Pages : 142
Book Description
The grain microstructure and damage mechanisms at the grain level are the key factors that influence fatigue of metals at small scales. This is addressed in this work by establishing a new micro-mechanical model for prediction of multiaxial high cycle fatigue (HCF) at a length scale of 5-100?m. The HCF model considers elasto-plastic behavior of metals at the grain level and microstructural parameters, specifically the grain size and the grain orientation.
Author: He, Pei Publisher: KIT Scientific Publishing ISBN: 3731501414 Category : Technology & Engineering Languages : en Pages : 236
Book Description
Main objective of this work is to develop, by systematic variation of the chemical composition, and TMP, 14% Cr nano-structured ferritic alloys with significantly improved high-temperature properties compared to currently available ODS alloys. Application of state-of-the-art characterization tools shall lead to an integrated understanding of structure-property correlation and the formation mechanism of nanoparticles.
Author: Ankit, Kumar Publisher: KIT Scientific Publishing ISBN: 373150491X Category : Technology (General) Languages : en Pages : 240
Book Description
With the advent of high performance computing, the application areas of the phase-field method, traditionally used to numerically model the phase transformation in metals and alloys, have now spanned into geoscience. A systematic investigation of the two distinct scientific problems in consideration suggest a strong influence of interfacial energy on the natural and induced pattern formation in diffusion-controlled regime.
Author: Ettrich, Joerg Publisher: KIT Scientific Publishing ISBN: 3731502410 Category : Science Languages : en Pages : 278
Book Description
To determine the characteristics and properties of cellular solids for an application, and to allow a systematic practical use by means of correlations and modelling approaches, we perform experimental investigations and develop numerical methods. In view of coupled multi-physics simulations, we employ the phase-field method. Finally, the applicability is demonstrated exemplarily for open-cell metal foams, providing qualitative and quantitative comparison with experimental data.
Author: Birkholz, Oleg Publisher: KIT Scientific Publishing ISBN: 373151172X Category : Science Languages : en Pages : 246
Book Description
Hierarchically structured active materials in electrodes of lithium-ion cells are promising candidates for increasing gravimetric energy density and improving rate capability of the system. To investigate the influence of cathode structures on the performance of the whole cell, efficient tools for calculating effective transport properties of granular systems are developed and their influence on the electrochemical performance is investigated in specially adapted cell models.
Author: Spyridon Korres
Author: Spyridon Korres
Author: Schwark, Tabea Gisela
Author: Ganser, Markus
Author: Kennerknecht, Tobias
Author: Feuchter, Manuel Klaus Ludwig
Author: Eslami, Reza
Author: He, Pei
Author: Ankit, Kumar
Author: Ettrich, Joerg
Author: Birkholz, Oleg