International audienceThe envelope of the solidification front naturally develops a macroscopic curvature in a multitude of solidification processes. However, its effect on dendritic microstructure formation remains poorly understood. Here we exploit a microgravity environment where convection is suppressed to investigate quantitatively the effect of curvature on dendritic array growth during directional solidification of a transparent succinonitrile 0.46 wt% camphor alloy. In addition, we interpret the results using both theoretical analyses and phase-field simulations. In situ observations reveal that even a weak macroscopic interface curvature can have a major effect on both the array pattern evolution and grain structure. First, convex ...
International audienceTo study the dynamical formation of 3D arrays of cells and dendrites under dif...
International audienceTo study the dynamical formation of 3D arrays of cells and dendrites under dif...
In directional solidification of crystalline materials, two directions compete for setting the growt...
International audienceWe study the solidification of succinonitrile-based alloys contained in cylind...
International audienceWe study the solidification of succinonitrile-based alloys contained in cylind...
International audienceThe properties of structural materials are to a large extent determined by the...
International audienceThe properties of structural materials are to a large extent determined by the...
International audienceWe have carried out three-dimensional phase-field simulations to model unique ...
International audienceWe have carried out three-dimensional phase-field simulations to model unique ...
International audienceThe solidification of a material from a melt usually involves the growth of de...
International audienceWe consider the growth direction of cells and dendrites in directional solidif...
International audienceTo study the dynamical formation of 3D arrays of cells and dendrites under dif...
International audienceWe experimentally address the locations of maximal curvature on crystalline ce...
International audienceThe solidification of a material from a melt usually involves the growth of de...
The aim of this investigation is to establish key scientific concepts that govern the selection of c...
International audienceTo study the dynamical formation of 3D arrays of cells and dendrites under dif...
International audienceTo study the dynamical formation of 3D arrays of cells and dendrites under dif...
In directional solidification of crystalline materials, two directions compete for setting the growt...
International audienceWe study the solidification of succinonitrile-based alloys contained in cylind...
International audienceWe study the solidification of succinonitrile-based alloys contained in cylind...
International audienceThe properties of structural materials are to a large extent determined by the...
International audienceThe properties of structural materials are to a large extent determined by the...
International audienceWe have carried out three-dimensional phase-field simulations to model unique ...
International audienceWe have carried out three-dimensional phase-field simulations to model unique ...
International audienceThe solidification of a material from a melt usually involves the growth of de...
International audienceWe consider the growth direction of cells and dendrites in directional solidif...
International audienceTo study the dynamical formation of 3D arrays of cells and dendrites under dif...
International audienceWe experimentally address the locations of maximal curvature on crystalline ce...
International audienceThe solidification of a material from a melt usually involves the growth of de...
The aim of this investigation is to establish key scientific concepts that govern the selection of c...
International audienceTo study the dynamical formation of 3D arrays of cells and dendrites under dif...
International audienceTo study the dynamical formation of 3D arrays of cells and dendrites under dif...
In directional solidification of crystalline materials, two directions compete for setting the growt...