Isomorphous template induced crystallisation: a robust method for the targeted crystallisation of computationally predicted metastable polymorphs

Crystallisation of a highly metastable hydrated calcium pyrophosphate phase

Sinter-crystallisation in the diopside–albite system Part I. Formation of induced crystallisation porosity

The sinter-crystallisation was investigated in three model glasses (G1, G2 and G3) belonging to the diopside–albite system and forming between 30 and 60% diopside, respectively. The effect of bulk crystallisation on the sintering was studied by the addition of 0.7 wt.% Cr2O3 as nucleating agent to the G2 glass. The degree of sintering was evaluated by the variation of the apparent density while...

Crystallisation kinetics

D. Quigley (Theory Group) The rates at which crystals nucleate and grow from either a supercooled melt, or a supersaturated solution, are essential inputs for solidification models in a variety of contexts. These include materials synthesis and processing, development of antifreeze strategies for cryopreservation, and understanding the formation of harmful biological crystals such as kidney st...

Coalescence-induced crystallisation wave in Pd nanoparticles

Palladium nanoparticles offer an attractive alternative to bulk palladium for catalysis, hydrogen storage and gas sensing applications. Their performance depends strongly on surface structure; therefore, nanoparticle coalescence can play an important role, as it determines the resultant structure of the active sites where reactions (e.g. catalysis) actually take place, i.e. facets, edges, verti...

Crystallisation in a granular material

The athermal and dissipative nature of packings of grains is still challenging our understanding of their compaction as well as their crystallisation. For instance, some beads poured in a container get jammed in random disordered con gurations, which cannot be denser than 64%, the random closed packing (RCP) limit. Remarkably it has been suggested that the RCP bound is saturated with dense patt...