Modeling Of Helium Bubble Nucleation And Growth In Neutron Irradiated Rafm Steels

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Modeling of Helium Bubble Nucleation and Growth in Neutron Irradiated RAFM Steels

Christian Dethloff
Modeling of Helium Bubble Nucleation and Growth in Neutron Irradiated RAFM Steels Book PDF

Author : Christian Dethloff
Publisher : KIT Scientific Publishing
Page : 194 pages
File Size : 43,6 Mb
Release : 2014-05-22
Category : Science
ISBN : 9783866449015

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Modeling of Helium Bubble Nucleation and Growth in Neutron Irradiated RAFM Steels by Christian Dethloff Pdf

Reduced Activation Ferritic/Martensitic (RAFM) steels are first candidate structural materials in future fusion technology. In this work a physically based model using Rate Theory is developed to describe nucleation and growth of helium bubbles in neutron irradiated RAFM steels. Several modifications of the basic diffusion limited model are presented allowing a comprehensive view of clustering effects and their influence on expected helium bubble size distributions.

Ion Beam Techniques and Applications

Ishaq Ahmad,Tingkai Zhao
Ion Beam Techniques and Applications Book PDF

Author : Ishaq Ahmad,Tingkai Zhao
Publisher : BoD – Books on Demand
Page : 115 pages
File Size : 42,9 Mb
Release : 2020-06-10
Category : Technology & Engineering
ISBN : 9781789845709

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Ion Beam Techniques and Applications by Ishaq Ahmad,Tingkai Zhao Pdf

A wide variety of ion beam techniques are being used in several versatile applications ranging from environmental science, nuclear physics, microdevice fabrication to materials science. In addition, new applications of ion beam techniques across a broad range of disciplines and fields are also being discovered frequently. In this book, the latest research and development on progress in ion beam techniques has been compiled and an overview of ion beam irradiation-induced applications in nanomaterial-focused ion beam applications, ion beam analysis techniques, as well as ion implantation application in cells is provided. Moreover, simulations of ion beam-induced damage to structural materials of nuclear fusion reactors are also presented in this book.

Small Scale Deformation using Advanced Nanoindentation Techniques

Ting Tsui,Alex A. Volinsky
Small Scale Deformation using Advanced Nanoindentation Techniques Book PDF

Author : Ting Tsui,Alex A. Volinsky
Publisher : MDPI
Page : 168 pages
File Size : 52,8 Mb
Release : 2019-06-11
Category : Technology & Engineering
ISBN : 9783038979661

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Small Scale Deformation using Advanced Nanoindentation Techniques by Ting Tsui,Alex A. Volinsky Pdf

Small scale mechanical deformations have gained a significant interest over the past few decades, driven by the advances in integrated circuits and microelectromechanical systems. One of the most powerful and versatile characterization methods is the nanoindentation technique. The capabilities of these depth-sensing instruments have been improved considerably. They can perform experiments in vacuum and at high temperatures, such as in-situ SEM and TEM nanoindenters. This allows researchers to visualize mechanical deformations and dislocations motion in real time. Time-dependent behavior of soft materials has also been studied in recent research works. This Special Issue on "Small Scale Deformation using Advanced Nanoindentation Techniques"; will provide a forum for researchers from the academic and industrial communities to present advances in the field of small scale contact mechanics. Materials of interest include metals, glass, and ceramics. Manuscripts related to deformations of biomaterials and biological related specimens are also welcome. Topics of interest include, but are not limited to: Small scale facture Nanoscale plasticity and creep Size-dependent deformation phenomena Deformation of biological cells Mechanical properties of cellular and sub-cellular components Novel mechanical properties characterization techniques New modeling methods Environmentally controlled nanoindentation In-situ SEM and TEM indentation

Phase-field Modeling of Multi-domain Evolution in Ferromagnetic Shape Memory Alloys and of Polycrystalline Thin Film Growth

Christian Mennerich
Phase field Modeling of Multi domain Evolution in Ferromagnetic Shape Memory Alloys and of Polycrystalline Thin Film Growth Book PDF

Author : Christian Mennerich
Publisher : KIT Scientific Publishing
Page : 284 pages
File Size : 42,9 Mb
Release : 2014-05-13
Category : Science
ISBN : 9783731500094

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Phase-field Modeling of Multi-domain Evolution in Ferromagnetic Shape Memory Alloys and of Polycrystalline Thin Film Growth by Christian Mennerich Pdf

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.

Modeling transport properties and electrochemical performance of hierarchically structured lithium-ion battery cathodes using resistor networks and mathematical half-cell models

Birkholz, Oleg
Modeling transport properties and electrochemical performance of hierarchically structured lithium ion battery cathodes using resistor networks and mathematical half cell models Book PDF

Author : Birkholz, Oleg
Publisher : KIT Scientific Publishing
Page : 246 pages
File Size : 40,6 Mb
Release : 2022-10-05
Category : Science
ISBN : 9783731511724

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Modeling transport properties and electrochemical performance of hierarchically structured lithium-ion battery cathodes using resistor networks and mathematical half-cell models by Birkholz, Oleg Pdf

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.

Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries

Zhang, Tao
Phase field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries Book PDF

Author : Zhang, Tao
Publisher : KIT Scientific Publishing
Page : 224 pages
File Size : 44,8 Mb
Release : 2021-09-27
Category : Technology & Engineering
ISBN : 9783731510024

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Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries by Zhang, Tao Pdf

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.

Structure evolution in tribological interfaces studied by multilayer model alloys

Cihan, Ebru
Structure evolution in tribological interfaces studied by multilayer model alloys Book PDF

Author : Cihan, Ebru
Publisher : KIT Scientific Publishing
Page : 194 pages
File Size : 44,7 Mb
Release : 2020-10-21
Category : Technology & Engineering
ISBN : 9783731509998

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Structure evolution in tribological interfaces studied by multilayer model alloys by Cihan, Ebru Pdf

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.

Dynamic Model-based Analysis of Oxygen Reduction Reaction in Gas Diffusion Electrodes

Röhe, Maximilian
Dynamic Model based Analysis of Oxygen Reduction Reaction in Gas Diffusion Electrodes Book PDF

Author : Röhe, Maximilian
Publisher : KIT Scientific Publishing
Page : 178 pages
File Size : 46,9 Mb
Release : 2024-01-09
Category : Electronic
ISBN : 9783731512349

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Dynamic Model-based Analysis of Oxygen Reduction Reaction in Gas Diffusion Electrodes by Röhe, Maximilian Pdf

In this work, the first simulation model of oxygen depolarized cathodes (ODC), which are silver catalyst-based gas diffusion electrodes, is presented that considers the phase equilibrium of the gas-liquid interface and structure-related inhomogeneities in electrolyte distribution. By means of the model it has been identified that mass transport of water and ions in the liquid phase is a crucial factor for electrode performance and how it is influenced by the electrode structure.

Modelling the Plastic Deformation of Iron

Zhiming Chen
Modelling the Plastic Deformation of Iron Book PDF

Author : Zhiming Chen
Publisher : KIT Scientific Publishing
Page : 174 pages
File Size : 50,8 Mb
Release : 2014-07-31
Category : Technology & Engineering
ISBN : 9783866449688

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Modelling the Plastic Deformation of Iron by Zhiming Chen Pdf

The 1/2111 screw dislocations in bcc iron are studied by atomistic simulations. An analytical yield criterion captures correctly the non-Schmid plastic behavior. A model Peierls potential develops a link between the atomistic modeling at 0 K and the thermally activated dislocation motion. All predicted features agree well with experimental observations. This work establishes a consistent bottom-up model that provides an insight into the microscopic origins of the plastic behavior of bcc iron.

Characterisation and Modelling of Continuous-Discontinuous Sheet Moulding Compound Composites for Structural Applications

Trauth, Anna
Characterisation and Modelling of Continuous Discontinuous Sheet Moulding Compound Composites for Structural Applications Book PDF

Author : Trauth, Anna
Publisher : KIT Scientific Publishing
Page : 468 pages
File Size : 45,8 Mb
Release : 2020-12-11
Category : Technology & Engineering
ISBN : 9783731509509

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Characterisation and Modelling of Continuous-Discontinuous Sheet Moulding Compound Composites for Structural Applications by Trauth, Anna Pdf

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.