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Phase Field Modeling Of Multi Domain Evolution In Ferromagnetic Shape Memory Alloys And Of Polycrystalline Thin Film Growth
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Book Synopsis Phase-field Modeling of Multi-domain Evolution in Ferromagnetic Shape Memory Alloys and of Polycrystalline Thin Film Growth by : Christian Mennerich
Download or read book Phase-field Modeling of Multi-domain Evolution in Ferromagnetic Shape Memory Alloys and of Polycrystalline Thin Film Growth written by Christian Mennerich and published by KIT Scientific Publishing. This book was released on 2014-05-13 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The phase-field method is a powerful tool in computer-aided materials science as it allows for the analysis of the time-spatial evolution of microstructures on the mesoscale. A multi-phase-field model is adopted to run numerical simulations in two different areas of scientific interest: Polycrystalline thin films growth and the ferromagnetic shape memory effect. FFT-techniques, norm conservative integration and RVE-methods are necessary to make the coupled problems numerically feasible.
Book Synopsis Phase-field Modeling of Multi-domain Evolution in Ferromagnetic Shape Memory Alloys and of Polycrystalline Thin Film Growth by : Christian Mennerich
Download or read book Phase-field Modeling of Multi-domain Evolution in Ferromagnetic Shape Memory Alloys and of Polycrystalline Thin Film Growth written by Christian Mennerich and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phase-field modeling of microstructural pattern formation in alloys and geological veins by : Ankit, Kumar
Download or read book Phase-field modeling of microstructural pattern formation in alloys and geological veins written by Ankit, Kumar and published by KIT Scientific Publishing. This book was released on 2016-05-31 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries by : Zhang, Tao
Download or read book Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries written by Zhang, Tao and published by KIT Scientific Publishing. This book was released on 2021-09-27 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most storage materials exhibit phase changes, which cause stresses and, thus, lead to damage of the electrode particles. In this work, a phase-field model for the cathode material NaxFePO4 of Na-ion batteries is studied to understand phase changes and stress evolution. Furthermore, we study the particle size and SOC dependent miscibility gap of the nanoscale insertion materials. Finally, we introduce the nonlocal species concentration theory, and show how the nonlocality influences the results.
Book Synopsis Phase-field simulations of multi-component solidification and coarsening based on thermodynamic datasets by : Schulz, Sebastian
Download or read book Phase-field simulations of multi-component solidification and coarsening based on thermodynamic datasets written by Schulz, Sebastian and published by KIT Scientific Publishing. This book was released on 2017-02-22 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The utilization of thermodynamic and mobility data plays a major role in phase-field modeling. This work discusses different formulations for the thermodynamic quantities of a grand potential model along with practices to determine parameters from datasets. The framework is used to study solidification of Al-Si-Mg for a variation of composition, diffusivities and surface energy anisotropies. To verify the simulations, they are compared with solidification theories.
Book Synopsis Microstructure evolution in strontium titanate Investigated by means of grain growth simulations and x-ray diffraction contrast tomography experiments by : Syha, Melanie
Download or read book Microstructure evolution in strontium titanate Investigated by means of grain growth simulations and x-ray diffraction contrast tomography experiments written by Syha, Melanie and published by KIT Scientific Publishing. This book was released on 2014-09-25 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the physical processes during fabrication and annealing of ceramic materials is a long sought goal among material scientists. Using strontium titanate as a model system for perovskite ceramics, the present work combines advanced non-destructive 3D characterization techniques and computational modeling of microstructure evolution in order to link grain morphology, interface anisotropy and microstructure evolution to macroscopic physical properties .
Book Synopsis Structure evolution in tribological interfaces studied by multilayer model alloys by : Cihan, Ebru
Download or read book Structure evolution in tribological interfaces studied by multilayer model alloys written by Cihan, Ebru and published by KIT Scientific Publishing. This book was released on 2020-10-21 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies of deformation mechanisms of metals and alloys pioneer the better investigation of the friction and wear behavior of materials with well-defined initial microstructures. Within this scope, in this work, the effect of sub-surface deformations on the resulting friction and wear behavior has been searched by means of a systematic experimental study on Au-Ni metallic multilayer model alloy system.
Book Synopsis On the structure-property correlation and the evolution of Nanofeatures in 12-13.5% Cr oxide dispersion strengthened ferritic steels by : He, Pei
Download or read book On the structure-property correlation and the evolution of Nanofeatures in 12-13.5% Cr oxide dispersion strengthened ferritic steels written by He, Pei and published by KIT Scientific Publishing. This book was released on 2013-12-24 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Grain growth behavior and efficient large scale simulations of recrystallization with the phase-field method by : Vondrous, Alexander
Download or read book Grain growth behavior and efficient large scale simulations of recrystallization with the phase-field method written by Vondrous, Alexander and published by KIT Scientific Publishing. This book was released on 2014-12-15 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the found insights of grain growth behavior, of multidimensional decomposition for regular grids to efficiently parallelize computing and how to simulate recrystallization by coupling the finite element method with the phase-field method for microstructure texture analysis. The frame of the book is created by the phase-field method, which is the tool used in this work, to investigate microstructure phenomena.
Book Synopsis Influence of strain on the functionality of ink-jet printed thin films and devices on flexible substrates by : Mishra, Nilesha
Download or read book Influence of strain on the functionality of ink-jet printed thin films and devices on flexible substrates written by Mishra, Nilesha and published by KIT Scientific Publishing. This book was released on 2019-02-15 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ink-jet printed devices on the flexible substrate are inexpensive and large area compatible as compared to rigid substrates. However, during fabrication and service they are subjected to complex strains, resulting in crack formation or delamination within the layers, affecting the device performance. Therefore, it is necessary to understand their failure mechanisms by correlating their electrical or structural properties with applied strain, supported by detailed microstructural investigations.
Book Synopsis High Cycle Fatigue of Al and Cu Thin Films by a Novel High-Throughput Method by : Sofie Burger
Download or read book High Cycle Fatigue of Al and Cu Thin Films by a Novel High-Throughput Method written by Sofie Burger and published by KIT Scientific Publishing. This book was released on 2014-05-19 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last two decades, the reliability of small electronic devices used in automotive or consumer electronics gained researchers attention. Thus, there is the need to understand the fatigue properties and damage mechanisms of thin films. In this thesis a novel high-throughput testing method for thin films on Si substrate is presented. The specialty of this method is to test one sample at different strain amplitudes at the same time and measure an entire lifetime curve with only one experiment.
Book Synopsis Modeling transport properties and electrochemical performance of hierarchically structured lithium-ion battery cathodes using resistor networks and mathematical half-cell models by : Birkholz, Oleg
Download or read book Modeling transport properties and electrochemical performance of hierarchically structured lithium-ion battery cathodes using resistor networks and mathematical half-cell models written by Birkholz, Oleg and published by KIT Scientific Publishing. This book was released on 2022-10-05 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Characterization and Modeling of the Ratcheting Behavior of the Ferritic-Martensitic Steel P91 by : Zhang, Kuo
Download or read book Characterization and Modeling of the Ratcheting Behavior of the Ferritic-Martensitic Steel P91 written by Zhang, Kuo and published by KIT Scientific Publishing. This book was released on 2017-07-12 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, the ratcheting-behavior of 9%Cr-1%Mo ferritic-martensitic steel is studied with uniaxial cyclic loading. To describe the ratcheting-behavior of this steel, a visco-plastic constitutive model with consideration of cyclic softening of Reduced Activation Ferritic Martensitic steels is further modified, based on the analysis of back stress.
Book Synopsis Characterisation and Modelling of Continuous-Discontinuous Sheet Moulding Compound Composites for Structural Applications by : Trauth, Anna
Download or read book Characterisation and Modelling of Continuous-Discontinuous Sheet Moulding Compound Composites for Structural Applications written by Trauth, Anna and published by KIT Scientific Publishing. This book was released on 2020-12-11 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this work is to significantly deepen the understanding of the material and the structural behaviour of continuous-discontinuous SMC composites, following a holistic approach to investigate microscopic aspects, macroscopic mechanical behaviour as well as failure evolution at the coupon, structure and component level. In addition, criteria to evaluate the effect of hybridisation are introduced and modelling approaches are presented and discussed.
Book Synopsis Deformation and Fracture Properties of the Soft Magnetic Composite Somaloy 700 3P on Different Length Scales by : Schwark, Tabea Gisela
Download or read book Deformation and Fracture Properties of the Soft Magnetic Composite Somaloy 700 3P on Different Length Scales written by Schwark, Tabea Gisela and published by KIT Scientific Publishing. This book was released on 2018-07-09 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis On the Electro-Chemo-Mechanical Coupling in Solid State Batteries and its Impact on Morphological Interface Stability by : Ganser, Markus
Download or read book On the Electro-Chemo-Mechanical Coupling in Solid State Batteries and its Impact on Morphological Interface Stability written by Ganser, Markus and published by KIT Scientific Publishing. This book was released on 2021-03-09 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Fatigue of Micro Molded Materials - Aluminum Bronze and Yttria Stabilized Zirconia by : Kennerknecht, Tobias
Download or read book Fatigue of Micro Molded Materials - Aluminum Bronze and Yttria Stabilized Zirconia written by Kennerknecht, Tobias and published by KIT Scientific Publishing. This book was released on 2014-12-04 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
