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Mohandas, N.K. (author), Giorgini, Alex (author), Vanazzi, Matteo (author), Riemslag, A.C. (author), Scott, S.P. (author), Popovich, V. (author)
This study investigated the in-situ gaseous (under 150 bar) hydrogen embrittlement behaviour of additively manufactured (AM) Inconel 718 produced from sustainable feedstock. Here, sustainable feedstock refers to the Inconel 718 powder produced by vacuum induction melting inert gas atomisation of failed printed parts or waste from CNC machining....
journal article 2023
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Bayraktaroglu, H. (author), Hicks, M.A. (author), Korff, M. (author), Galavi, Vahid (author)
Experimental studies show that initial fabric and its evolution under different stress paths highly influence soil behaviour. Even though different sample preparation methods create different inherent anisotropies and cause different material responses, the same initial fabric structure under different stress paths also results in different...
journal article 2023
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van der Laan, M. (author), Heemskerk, Edwin (author), Kienhuis, Floris (author), Poonia, D. (author), Kinge, S.S. (author), Dang, Minh Triet (author), Dinh, Van An (author), Siebbeles, L.D.A. (author), Isaeva, Anna (author), Schall, Peter (author)
Rhenium disulfide, a member of the transition metal dichalcogenide family of semiconducting materials, is unique among 2D van der Waals materials due to its anisotropy and, albeit weak, interlayer interactions, confining excitons within single atomic layers and leading to monolayer-like excitonic properties even in bulk crystals. While recent...
journal article 2023
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Mohandas, Naveen (author)
Laser powder bed fusion (L-PBF) is an additive manufacturing (AM) technology that has been gaining a lot of interest as it allows to produce parts with complex geometries and eliminate expensive tooling. Unlike the conventional manufacturing processes where material is removed to make the final component; AM part is manufactured layer-wise as...
master thesis 2022
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Masaylo, Dmitriy (author), Igoshin, Sergei (author), Popovich, Anatoly (author), Orlov, Alexey (author), Kim, Artem (author), Popovich, V. (author)
Metal additive manufacturing (AM) by Laser-Directed Energy Deposition (L-DED) usually results in the formation of textured columnar grains along the build direction, leading to anisotropic mechanical properties. This can negatively affect the intended application of the product. Anisotropy can be eliminated by modifying the material through an...
journal article 2022
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Wang, Jian (author), Qin, Hongbo (author), Chen, Junfu (author), Yang, Daoguo (author), Zhang, Kouchi (author)
In this study, first-principles calculations were utilized to investigate the lattice constants, elastic constants, and mechanical properties of gold–copper (Au–Cu) intermetallic compounds (IMCs), including AuCu3, AuCu, and Au3Cu. We also verified the direction dependence of the Young’s modulus, shear modulus, and Poisson’s ratio of the...
journal article 2022
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Siskins, M. (author)
This thesis studies higher-order material properties* and effects in van der Waals crystals, such as anisotropic Young’s modulus, magnetostriction, and non-trivial thermal expansion effects near magnetic and electronic phase transitions, that can affect the nanomechanical motion ofmultilayer two-dimensional (2D) material membranes. These...
doctoral thesis 2021
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Gunashekar, Deepthishre (author)
Polymer composites are found to have high performance efficiency because of its highly flexible polymer matrix and stiff fibres or functional fillers. The matrix and the reinforcements are two main components for a strong and tough composite. The performance of these composites highly depend on the material property of the matrix and the...
master thesis 2019
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Verschuur, D.J. (author), Alshuhail, A.A. (author)
Since the Earth is predominately anisotropic, the anisotropy of the medium needs to be included in seismic imaging to avoid mispositioning of reflectors and unfocused images. Deriving accurate anisotropic velocities from the seismic reflection measurements is a highly nonlinear and ambiguous process. To mitigate the nonlinearity and trade-offs...
journal article 2018
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Hinkofer, Thomas (author)
With an increased demand for renewable energy sources, geothermal developments have moved into the spotlight, including sedimentary structures. In the western part of the Netherlands, cretaceous sandstone bodies are already in use for the geothermal energy production. However, these reservoirs are generally producing water at temperatures less...
master thesis 2017
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Naghdy, Soroosh (author), Pirgazi, Hadi (author), Verleysen, Patricia (author), Petrov, R.H. (author), Kestens, L.A.I. (author)
International Union of Crystallography. The aim of this paper is to examine the morphological and crystallographic anisotropy that develops during high-pressure torsion (HPT) processing. Commercially pure aluminium was subjected to monotonic HPT deformation at room temperature. The microstructure and texture were studied by large-area electron...
journal article 2017
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van Veen, D.J. (author)
MSc thesis collaboration between ETH Zurich and Schlumberger Gould Research, Cambridge, UK. - A hydraulic stimulation operation in the Marcellus shale, Pennsylvania, was monitored by means of coalescence microseismic mapping, with receiver arrays downhole, in a horizontal well, and at the surface, in a radial geometry. The results of each survey...
master thesis 2016
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Zervakis, D.I. (author)
All human life is dependent on fresh water and activities related to monitoring its availability have become crucial for financial and survival reasons. Most rivers are being constantly investigated today by both the private and public sector using various means. In advanced countries, the researches cover extensively the riverbed in order to...
master thesis 2015
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Van Westen, T. (author), Oyarzun Rivera, B.A. (author), Vlugt, T.J.H. (author), Gross, J. (author)
We develop an equation of state (EoS) for describing isotropic-nematic (IN) phase equilibria of Lennard-Jones (LJ) chain fluids. The EoS is developed by applying a second order Barker-Henderson perturbation theory to a reference fluid of hard chain molecules. The chain molecules consist of tangentially bonded spherical segments and are allowed...
journal article 2015
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Oyarzun, B. (author), Van Westen, T. (author), Vlugt, T.J.H. (author)
The isotropic-nematic phase equilibria of linear hard-sphere chains and binary mixtures of them are obtained from Monte Carlo simulations. In addition, the infinite dilution solubility of hard spheres in the coexisting isotropic and nematic phases is determined. Phase equilibria calculations are performed in an expanded formulation of the Gibbs...
journal article 2015
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Hunziker, J.W. (author), Thorbecke, J.W. (author), Slob, E.C. (author)
We determined that the electromagnetic vertical transverse isotropic response in a layered earth can be obtained by solving two equivalent scalar equations, which were for the vertical electric field and for the vertical magnetic field, involving only a scalar global reflection coefficient. Besides the complete derivation of the full...
journal article 2014
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Mercatoris, B.C.N. (author), Massart, T.J. (author), Sluys, L.J. (author)
This contribution discusses a coupled two-scale framework for hydro-mechanical problems in saturated heterogeneous porous geomaterials. The heterogeneous nature of such materials can lead to an anisotropy of the hydro-mechanical couplings and non-linear effects. Based on an assumed model of the mesostructure, the average macroscopic hydro...
conference paper 2013
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Veling, E.J.M. (author)
In this article, we describe horizontal groundwater flow due to a uniform flow at infinity around a cylindrical or elliptical inhomogeneity, where the permeability inside the inhomogeneity is anisotropic and different from the isotropic domain outside the inhomogeneity. The orientation of the uniform flow with respect to the orientation of the...
journal article 2011
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Xu, M. (author)
Diffraction gratings are being used to manipulate light in many different applications, such as in flat panel display systems, modern lighting systems, and optical recording. Diffraction gratings can be made polarization selective due to form birefringence. An alternative approach to polarization selective gratings is to use birefringent...
doctoral thesis 2009
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Hemker, K. (author), Bakker, M. (author)
Analytical solutions are derived for steady state groundwater flow in a heterogeneous, anisotropic, semiconfined aquifer. The aquifer consists of a number of horizontal layers, while each layer consists of a number of homogeneous cells with different hydraulic conductivity tensors. An exact solution for an arbitrary number of layers and cells is...
journal article 2006
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