منابع مشابه
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...
متن کاملInhibition of ice crystallisation
Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract Homogeneous nucleation of ice within aqueous solution droplets and their subsequent crystallisation is thought to play a significant role in upper tropospheric ice cloud formation. It is normally assumed...
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hotostructurable glass–ceramics are suitable for 3-dimensional microfabrication and, in some instances, can be used as an alternative material o silicon in the microfabrication of micro-electro-mechanical-system (MEMS) devices. Foturan® is a photosensitive lithium–aluminium–silicate lass that can be structured by an exposure to UV light, followed by a thermal treatment and an etching step. In t...
متن کاملSinter-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...
متن کاملCrystallisation 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...
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ژورنال
عنوان ژورنال: Nature
سال: 1935
ISSN: 0028-0836,1476-4687
DOI: 10.1038/136030a0