Publications related to Silica cycle

The Effect of Aluminum in Solution on the Dissolution of Amorphous Silica and its Relation to Cementitious Systems

Karen Scrivener, Theodor Alexandre Emmanuele Chappex

One of the most serious causes of degradation of concrete is the alkalisilica reaction. Amorphous silicates present in certain aggregates react with the alkaline pore solution of the concrete to form a gel, which absorbs water and swells, leading to the ex ...

Wiley-Blackwell2013

UV-cured transparent magnetic polymer nanocomposites

Yves Leterrier, Marco Sangermano, Tommaso Nardi

Magnetite nanoparticles are synthesized by thermal decomposition of Fe(acac)(3) and subsequently coated with a silica shell exploiting a water-in-oil synthetic procedure. The as-produced nanopowder is mixed with a photocurable hyperbranched resin and the p ...

2013

Highly Dynamic Cellular-Level Response of Symbiotic Coral to a Sudden Increase in Environmental Nitrogen

Anders Meibom, Duncan Thomas Lindsay Alexander, Isabelle Domart-Coulon, Christophe Kopp

Metabolic interactions with endosymbiotic photosynthetic dinoflagellate Symbiodinium spp. are fundamental to reef-building corals (Scleractinia) thriving in nutrient-poor tropical seas. Yet, detailed understanding at the single-cell level of nutrient assim ...

American Society for Microbiology2013

Influence Of Processing And Storage On The Shear Thickening Properties Of Highly Concentrated Monodisperse Silica Particles In Polyethylene Glycol

Véronique Michaud, Mathieu Soutrenon

The shear thickening behavior of concentrated suspensions can be exploited to dissipate energy during impact or shear loading. To preserve the consistency of the thickening behavior in practical applications, particle concentration, and dispersion should b ...

Kerschensteiner Verlag Gmbh2013

Solid-Phase Polarization Matrixes for Dynamic Nuclear Polarization from Homogeneously Distributed Radicals in Mesostructured Hybrid Silica Materials

David Lyndon Emsley, Aaron James Rossini, Moreno Lelli, David Benjamin Roger Antoine Gajan

Mesoporous hybrid silica-organic materials containing homogeneously distributed stable mono- or dinitroxide radicals covalently bound to the silica surface were developed as polarization matrixes for solid-state dynamic nuclear polarization (DNP) NMR exper ...

AMER CHEMICAL SOC2013

The influence of aluminium on the dissolution of amorphous silica and its relation to alkali silica reaction

Karen Scrivener, Theodor Alexandre Emmanuele Chappex

It is known that the addition of supplementary cementitious materials (SCMs) in concretes reduces or even stops expansion due to alkali silica reaction (ASR). It has been widely shown that the main mechanism controlling ASR in blends is the alkali fixation ...

Pergamon-Elsevier Science Ltd2012

The role of aluminium from supplementary cementitious materials in controlling alkali-silica reaction

Theodor Alexandre Emmanuele Chappex

Alkali silica reaction (ASR) is a long-term reaction between certain aggregates containing amorphous silicate phases and the alkalis from the cement paste. These silicates react with the alkalis present in the pore solution of the cement paste and form an ...

EPFL2012

Gasification of Hay in a Bench Scale Fluidised Bed Reactor with Emphasis on the Suitability for Gas Turbines

Christian Ludwig, Marco Wellinger

Thermal gasification of pasture plants (hay) is so far considered as difficult mainly due to the high amount of inorganics (ash, alkalis). Under certain circumstances it could be an additional resource for power production. There has been some experiments ...

Elsevier2012

Phenyl-bridged polysilsesquioxane positive and negative resist for electron beam lithography

Jürgen Brugger, Vaida Auzelyte

We present and characterize an organic–inorganic hybrid sol–gel material, phenyl-bridged polysilsesquioxane (ph-PSQ), for use as a new highresolution resist for electron beam lithography (EBL). The resist has a unique characteristic as the only positive to ...

Institute of Physics2012

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Silica cycle

The Effect of Aluminum in Solution on the Dissolution of Amorphous Silica and its Relation to Cementitious Systems

UV-cured transparent magnetic polymer nanocomposites

Highly Dynamic Cellular-Level Response of Symbiotic Coral to a Sudden Increase in Environmental Nitrogen

Influence Of Processing And Storage On The Shear Thickening Properties Of Highly Concentrated Monodisperse Silica Particles In Polyethylene Glycol

Solid-Phase Polarization Matrixes for Dynamic Nuclear Polarization from Homogeneously Distributed Radicals in Mesostructured Hybrid Silica Materials

The influence of aluminium on the dissolution of amorphous silica and its relation to alkali silica reaction

The role of aluminium from supplementary cementitious materials in controlling alkali-silica reaction

Gasification of Hay in a Bench Scale Fluidised Bed Reactor with Emphasis on the Suitability for Gas Turbines

Phenyl-bridged polysilsesquioxane positive and negative resist for electron beam lithography

Low-Stress Hyperbranched Polymer/Silica Nanostructures Produced by UV Curing, Sol/Gel Processing and Nanoimprint Lithography

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Phenyl-bridged polysilsesquioxane positive and negative resist for electron beam lithography

The role of aluminium from supplementary cementitious materials in controlling alkali-silica reaction

The influence of aluminium on the dissolution of amorphous silica and its relation to alkali silica reaction

Highly Dynamic Cellular-Level Response of Symbiotic Coral to a Sudden Increase in Environmental Nitrogen

Influence Of Processing And Storage On The Shear Thickening Properties Of Highly Concentrated Monodisperse Silica Particles In Polyethylene Glycol

The Effect of Aluminum in Solution on the Dissolution of Amorphous Silica and its Relation to Cementitious Systems

Low-Stress Hyperbranched Polymer/Silica Nanostructures Produced by UV Curing, Sol/Gel Processing and Nanoimprint Lithography

UV-cured transparent magnetic polymer nanocomposites

Gasification of Hay in a Bench Scale Fluidised Bed Reactor with Emphasis on the Suitability for Gas Turbines

Solid-Phase Polarization Matrixes for Dynamic Nuclear Polarization from Homogeneously Distributed Radicals in Mesostructured Hybrid Silica Materials