Concept

Sand casting

Related publications (103)

On the Limits of Precision Glass Molding for Diffractive Optical Elements

Diffractive optical elements (DOEs) consist of surface reliefs with dimensions in the micrometer range and nanometer precision. Two technologies dominate: Elements replicated in plastic and directly microfabricated elements in fused silica. Plastic DOEs ar ...

EPFL2017

Small-scale metal castings, small-scale metal/transparent composite structures and process to produce same

Andreas Mortensen, Yves Bellouard, Raphaël Charvet, Cyril Dénéréaz

The method comprises at least the following steps: - exposing a substrate to focused laser irradiation at a preselected series of locations that trace a subset of the substrate volume that is connected to the surface of the substrate; some subsets of subst ...

2017

On the Application of Microbially Induced Calcite Precipitation for Soils: A Multiscale Study

Lyesse Laloui, Dimitrios Terzis

Two laboratory experiments are used to provide preliminary evidence towards upscaling the microbially induced calcite precipitation (MICP) for soils. Fine sand is packed and subsequently subjected to MICP treatment in 11-liter cylindrical tanks. Different ...

Springer, Cham2017

The Search for Affordable Cement and Concrete in the 18th and 19th Century

Salvatore Aprea

The interest of German building masters towards hydraulic binders grows at the third decade of the 19th century. This acute interest is stimulated by the import of «Roman Cement» from England and by the acquisition of the knowledge related to it. The disse ...

2017

Silicon particle pinhole defects in aluminium–silicon alloys

Andreas Mortensen, Martin Guillermo Mueller, Marta Fornabaio

It was recently shown that silicon particles in heat-treated Al–Si casting alloys can contain flaws such as surface pinholes and grooves, which cause varying degrees of reduction in the in situ particle fracture strength and hence influence the mechanical ...

Springer Verlag2017

Iron Oxide Photoelectrode with Multidimensional Architecture for Highly Efficient Photoelectrochemical Water Splitting

Jun Ho Yum

Nanostructured metal oxide semiconductors have shown outstanding performances in photoelectrochemical (PEC) water splitting, but limitations in light harvesting and charge collection have necessitated further advances in photo-electrode design. Herein, we ...

Wiley-V C H Verlag Gmbh2017

Mode I fatigue crack arrest in tensile steel members using prestressed CFRP plates

Alain Nussbaumer, Ardalan Hosseini, Masoud Motavalli, Elyas Ghafoori

Numerous studies in the literature have shown that the strengthening of steel members using carbon fiber reinforced polymer (CFRP) composites can significantly extend the fatigue life of these structures. However, not enough attention has been focused on t ...

Elsevier Sci Ltd2017

Precision glass molding of high-resolution diffractive optical elements

Hans Peter Herzig, Toralf Scharf, Karin Prater

The demand of high resolution diffractive optical elements (DOE) is growing. Smaller critical dimensions allow higher deflection angles and can fulfill more demanding requirements, which can only be met by using electron-beam lithography. Replication techn ...

Spie-Int Soc Optical Engineering2016

Effect of fiber orientation on the in-plane tensile response of UHPFRC reinforcement layers

Eugen Brühwiler, Emmanuel Denarié, Maléna Bastien Masse

The application on existing Reinforced Concrete (RC) slabs of cast-on site Ultra-High Performance Fiber Reinforced cement-based Composite UHPFRC) layers is a very efficient reinforcement technique, currently spreading. For the design of these tensile reinf ...

Elsevier2016

Fabrication process of silicone-based dielectric elastomer actuators

Herbert Shea, Samuel Rosset, Samuel Schlatter

This contribution demonstrates the fabrication process of dielectric elastomer transducers (DETs). DETs are stretchable capacitors consisting of an elastomeric dielectric membrane sandwiched between two compliant electrodes. The large actuation strains of ...

Journal of Visualized Experiments2016

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