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Oxide glasses are disordered molecular structures and typically show poor intrinsic ductility. As a consequence, these materials are brittle. Although it is possible to toughen glasses using additives or heat-treatment methods, their resistance to crack formation and propagation remains very low. To address this long-standing challenge, one strategy is to look at the molecular design of the glass and to tune its composition. By enabling the formation of weak ionic bonds, it has been possible to develop glass compositions that exhibit high crack resistance through the plasticity of their molecular network.

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June 4th, 2014

Order and disorder in calcium–silicate–hydrate

Bauchy, M., MJ Qomi, F. Ulm, and R. Pellenq. 2014. "Order and disorder in calcium-silicate-hydrate." Journal of Chemical Physics, 140 [...]
June 4th, 2014

Nanoscale Structure of Cement: Viewpoint of Rigidity Theory

Bauchy, Mathieu, Mohammad Abdolhosseini Qomi, Christophe Bichara, Franz-Joseph Ulm, and Roland Pellenq. 2014. "Nanoscale structure of cement: viewpoint of rigidity [...]
May 19th, 2014

Predicting C-S-H Aging

The aging of concrete is of critical importance for the industry as well as the research community. The aging process […]

May 19th, 2014

Atomic Scale Grinding of Clinker

Alite (C3S) and belite (C2S) are the major constituents of portland cement clinker. As its grinding requires a considerable amount […]

May 19th, 2014

Gorilla Cement: Tougher, Yet Greener

Concrete is the most used construction material in the world. Thanks to its strength, durability, and low cost, it is […]

March 4th, 2014

Is cement a glassy material?

Bauchy, M., M. Qomi, R. Pellenq, and F. Ulm. 2014. "Is cement a glassy material?" CRC Press, 169. http://books.google.com/books?hl=en&lr=&id=0ILMBQAAQBAJ&oi=fnd&pg=PA169&dq=info:INVVicttg8QJ:scholar.google.com&ots=sjOl7XcoiE&sig=ZOLnmZ2Uwtgj6sG4o_Gyb6cEfdI#v=onepage&q&f=false. Bauchy, [...]
February 14th, 2014

Sapphire Crystal on the next iPhone?

February 7th, 2014

Anomalous composition-dependent dynamics of nanoconfined water in the interlayer of disordered calcium-silicates

Abdolhosseini Qomi, Mohammad, Mathieu Bauchy, Franz-Josef Ulm, and Roland Pellenq. 2014. "Anomalous composition-dependent dynamics of nanoconfined water in the interlayer [...]
January 16th, 2014

A day made of glass

December 23rd, 2013

Percolative heterogeneous topological constraints and fragility in glass-forming liquids

Bauchy, M. and M. Micoulaut. 2013. "Percolative heterogeneous topological constraints and fragility in glass-forming liquids." EPL (Europhysics Letters), 104 (5): [...]