- Database
- Experimentalists
- Date
- 1992-01-01
- Thickness
- 1.0 $\pm$ 0.01 $mm$
- Surface roughness
- very low
- Substrate material
- between 2 saphire windows 20mm diameter, 3mm thick
- Comments
- Generic sample of experiments of beta-N2 with different low CO concentrations: 0.45 and 4.2%
- Temperature
- 41.0 $\pm$ 0.3 $K$
- Temperature max
- 63.15 $\pm$ 0.1 $K$
- Time at Tmax
- 12.0 $h$
- Comments
- Temperature error is mostly due to sample temperature gradient within the spot (1K/cm). Temperature maxi is the formation temperature (triple point): 63.15 +/- 0.05 K for 0.45% CO, 63.4 +/- 0.1 K for 4.2% CO
- Number
- 1
- Layers
-
- CO in beta-N2 crystalline , 1.0 $mm$
- Title
- Crystallisation of liquid solution to a monocrystal of CO:beta-N2 solid solution
- Matters
- Sample
- CO in beta-N2 crystalline (this sample)
- Processing steps
-
Step Chronology Date Type Process Changes #1 before layer formation 1992-01-01 layer formation mixing 0.5 and 5% CO in N2 gas at room temperature in a glass bulb at ?? mbar CO and N2 gases mixed #2 during layer formation 1992-01-01 layer formation condensation of CO:N2 = 0.5 and 5% gas mixtures in a cryogenic cell around 65K CO and N2 condensed as a liquid solution; density of N2 liquid at 63.15K: 0.808g.cm-3 #3 during layer formation 1992-01-01 thermal slow vertical crystal growth (1 mm thick) from liquid solution at 63.15K under controled thermal gradient - P ~ 125 mbar - no annealing crystallisation of liquid solution to a monocrystal of CO:beta-N2 solid solution (single phase) with small fractionation: 0.45 and 4.2% CO