- Database
- Experimentalists
- 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
- 38.0 $\pm$ 0.1 $K$
- Temperature max
- 63.15 $\pm$ 0.2 $K$
- Comments
- CDATA[temperature maxi is formation temperature (triple point) - temprature gradient: 0.5K/mm
- Type
- molecular gas
- Fluids
-
- $N_2$ 100.0 $\pm$ 2.0e-04 %
- 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
-
- Layer #1 , 10.0 $mm$
- Title
- Crystallisation of N2 solid beta phase
- Materials
- 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