Philip Marmet
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View article: Quantifying the β-phase dissolution of Ti-6Al-4V implant material under simulated inflammatory conditions
Quantifying the β-phase dissolution of Ti-6Al-4V implant material under simulated inflammatory conditions Open
View article: Effective transport properties of porous composites applied to MIEC SOC electrodes
Effective transport properties of porous composites applied to MIEC SOC electrodes Open
The effect of composite conductivity and its implications for microstructure design are studied for a porous composite. Three semi-analytical models are suggested to predict the effective composite conductivity in an efficient and accurate…
View article: Summary and Conclusions
Summary and Conclusions Open
A short summary is provided for each chapter of the book, which includes a review of theories and a new classification of tortuosity types (chapter 2), a review of empirical data (tortuosity-porosity relationships) from literature (chapter…
View article: Introduction
Introduction Open
Tortuosity is a major source of transport resistance from microstructure. The scientific debates on tortuosity and associated microstructure effects are often affected by misunderstandings and misconceptions. The sources of these misunders…
View article: Image Based Methodologies, Workflows, and Calculation Approaches for Tortuosity
Image Based Methodologies, Workflows, and Calculation Approaches for Tortuosity Open
In this chapter, modern methodologies for characterization of tortuosity are thoroughly reviewed. Thereby, 3D microstructure data is considered as the most relevant basis for characterization of all three tortuosity categories, i.e., direc…
View article: Tortuosity-Porosity Relationships: Review of Empirical Data from Literature
Tortuosity-Porosity Relationships: Review of Empirical Data from Literature Open
It is generally assumed that transport resistance in porous media, which can also be expressed as tortuosity, correlates somehow with the pore volume fraction. Hence, mathematical expressions such as the Bruggeman relation (i.e., τ 2 = ε −…
View article: Tortuosity and Microstructure Effects in Porous Media
Tortuosity and Microstructure Effects in Porous Media Open
This open access book presents a thorough look at tortuosity and microstructure effects in porous materials. The book delivers a comprehensive review of the subject, summarizing all key results in the field with respect to the underlying t…
View article: Standardized microstructure characterization of SOC electrodes as a key element for Digital Materials Design
Standardized microstructure characterization of SOC electrodes as a key element for Digital Materials Design Open
A standardized microstructure characterization tool for solid oxide cell (SOC) electrodes is presented, allowing for the automatic determination of a large number of microstructure characteristics relevant for the cell performance.
View article: Review of Theories and a New Classification of Tortuosity Types
Review of Theories and a New Classification of Tortuosity Types Open
Many different definitions of tortuosity can be found in literature. In addition, also many different methodologies are nowadays available to measure or to calculate tortuosity. This leads to confusion and misunderstanding in scientific di…
View article: Stochastic microstructure modeling of SOC electrodes based on a pluri-Gaussian method
Stochastic microstructure modeling of SOC electrodes based on a pluri-Gaussian method Open
A workflow for the stochastic microstructure modeling of solid oxide cell electrodes is presented. Based on a few real microstructures, the design space can be virtually explored, allowing for a subsequent optimization of microstructure pr…
View article: Towards a Quantitative Understanding of Microstructure-Property Relationships
Towards a Quantitative Understanding of Microstructure-Property Relationships Open
100 years ago, the concept of tortuosity was introduced by Kozeny in order to express the limiting influence of the microstructure on porous media flow. It was also recognized that transport is hindered by other microstructure features suc…
View article: Modeling the impedance response and steady state behaviour of porous CGO-based MIEC anodes
Modeling the impedance response and steady state behaviour of porous CGO-based MIEC anodes Open
The SOFC MIEC anode model enables an appropriate understanding of the complex physico-chemical processes and microstructure effects and thus provides a basis for a systematic materials optimization.
View article: Modeling the Effects of Using Gas Diffusion Layers With Patterned Wettability for Advanced Water Management in Proton Exchange Membrane Fuel Cells
Modeling the Effects of Using Gas Diffusion Layers With Patterned Wettability for Advanced Water Management in Proton Exchange Membrane Fuel Cells Open
We present a macrohomogeneous two-phase model of a proton exchange membrane fuel cell (PEMFC). The model takes into account the mechanical compression of the gas diffusion layer (GDL), the two-phase flow of water, the transport of the gas …
View article: Shear-induced migration in colloidal suspensions
Shear-induced migration in colloidal suspensions Open
Using Brownian dynamics simulations we perform a systematic investigation of\nthe shear-induced migration of colloidal particles subject to Poiseuille flow\nin both cylindrical and planar geometry. We find that adding an attractive\ncompon…