- Database
- Experimentalists
- Date
- 2021-01-01
- Provider
- IPAG
- Parent sample
- NWA14499 matrix grains (CR) on diamond (vacuum, Tamb)
- Thickness
- 15.0 $\pm$ 5.0 ${\mu}m$
- Diameter
- 40.0 ${\mu}m$
- Substrate material
- diamond window
- Substrate comments
- diamond window of 3.5mm diameter
- Comments
- matrix grains manually selected under binocular, pressed on diamond window and progressively heated under vacuum
- Temperature
- 250.0 $\pm$ 5.0 $^{\circ}C$
- Temperature max
- 260.0 $\pm$ 5.0 $^{\circ}C$
- Time at Tmax
- 3600.0 $s$
- Type
- vacuum
- Fluid pressure
- 2.5e-06 $\pm$ 5.0e-07 $mbar$
- Comments
- sample put in a cell enabling acquisition under primary or secondary dynamic vacuum (from $10^{-4}$ mbar down to $10^{-7}$ mbar)
- Number
- 1
- Layers
-
- Layer #1 , 15.0 ${\mu}m$
- Title
- heating of the pressed grains
- Samples
- Sample
- NWA14499 matrix grains (CR) heated at 250°C under vacuum (this sample)
- Processing steps
-
Step Chronology Date Type Process Changes #1 on parent sample 2021-01-01 thermal heating at 250°C under vacuum in an environmental cell partial reduction of the amount of adsorbed $H_2O$ - Comments
- heating in order to remove adsorbed water on the matrix grains