Sample
Name
Sublimation residue made of Nontronite on Water ice particles 67±31μm containing 1wt% Nontronite in intra-mixture at 173 K
Database
Experimentalists
Date
2019-04-16
Nontronite icy sample during the sublimation experiment, before explosion of the sublimation residue. The surface is covered by a dry residue made of pure Nontronite NAu-1 in a porous structure (the sublimation residue). Water ice particles containing nontronite are still present below this layer.
Physical characteristics
Thickness
20.0 $\pm$ 1.0 $mm$
Diameter
48.0 $mm$
Surface roughness
smooth
Substrate material
black aluminum tape
Substrate comments
Cylindrical container of 4.8 cm diameter and 2.0 cm depth, which had been coated with black matte aluminum tape on the inside.
Comments
The initial thickness of the whole sample is 20 mm. As the sublimation goes on, the thickness of the sublimation mantle layer increases while the thickness of the ice layer below decreases.
Temperature
173.0 $K$
Temperature max
173.0 $K$
Type
vacuum
Fluid pressure
1.5e-06 $mbar$
Comments
The sample was kept under high vacuum
Publications
Number
2
Arrangement
The upper layer formed by sublimation of the ice in the lower layer.
Layers