Sample
Name
Water ice spherical particles 4.5±2.5 μm at 223 K
Database
Experimentalists
Date
2016-10-20
Sample of water ice spherical particles 4.5±2.5 μm at 223 K after measurement in the CarboNIR thermal vacuum chamber
Physical characteristics
Thickness
3.0 $\pm$ 1.0 $mm$
Diameter
48.0 $mm$
Surface roughness
smooth
Sample changes
The sample kept at 223 K under primary vacuum for 50 min underwent sublimation (of the top ~1mm) and metamorphism of the ice particles (recrystallisation/sintering, change of grains size and shape)
Substrate material
aluminum sample holder
Substrate comments
Cylindrical 48 mm diameter sample holder with a thickness of 1 mm
Comments
Fresh sample prepared just before the measurement.
Temperature
223.0 $K$
Time at T
50.0 $min$
Temperature max
223.0 $K$
Comments
The sample was kept at constant temperature of 223 K
Type
vacuum
Fluid temperature
223.0 $K$
Fluid pressure
6.0 $\pm$ 1.0 $mbar$
Comments
The sample was kept under constant primary vacuum, of less than 7.2 mbar
Comments
The sample was kept under constant primary vacuum, of less than 7.2 mbar
Comments
The sapphire window on top of the sample was actively heated (to avoid frost condensation). Consequently, the sample was irradiated by thermal infrared from the window, accelerating its metamorphism.
Number
1
Layers