Sample
Name
beta-N2 crystalline
Date
1992-01-01
Parent sample
liquid N2
Thickness
10.0 $\pm$ 0.1 $mm$
Surface roughness
very low
Substrate material
between 2 MgF2 windows
Substrate comments
Generic sample of experiments of beta N2 in different spectral ranges
Temperature
36.5 $\pm$ 0.1 $K$
Temperature max
63.14 $\pm$ 0.06 $K$
Comments
CDATA[temperature maxi is formation temperature (triple point) - temprature gradient: 0.5K/mm
Type
molecular gas
Fluids
Fluid temperature
36.5 $\pm$ 0.1 $K$
Fluid pressure
5.0e-06 $\pm$ 2.0e-06 $bar$
Comments
in thermodynamic equilibrium with solid
Number
1
Layers
Title
Crystallisation of N2 solid beta phase

Precursors

Materials

Produced sample

Sample
beta-N2 crystalline (this sample)
Processing steps
Step Chronology Date Type Process Changes
#1 on parent sample 1992-01-01 thermal slow cooling (0.5K/h) from 69K to 63.15K under small vertical thermal gradient (0.5/mm) large polycrystals 10 mm thick of solid beta-N2 grown from crystallisation of liquid N2