- Database
- Experimentalists
- Date
- 1992-10-02
- Thickness
- 1.0 $mm$
- Diameter
- 5.0 $mm$
- Surface roughness
- polished
- Temperature
- 300.0 $\pm$ 5.0 $K$
- Temperature max
- 300.0 $K$
- Type
- ambient air
- Fluid temperature
- 300.0 $K$
- Fluid pressure
- 1000.0 $mbar$
- Number
- 1
- Layers
-
- Mg$_{0.75}$Fe$_{0.25}$S , 1.0 $mm$
- Title
- Synthesis and preparation of the sulfide sample
- Sample
- Mg$_{0.75}$Fe$_{0.25}$S (this sample)
- Processing steps
-
Step Chronology Date Type Process Changes #1 before layer formation 1992-10-02 thermal synthesis of the sulfide by the evacuated silica tube method at 1273 K for 24 hours from native elements #2 before layer formation 1992-10-02 pressure production of a pellet from the synthesized sulfide powder #3 before layer formation 1992-10-02 thermal melting the pellet in an arc furnance formation of a compact sample #4 before layer formation 1992-10-02 thermal quenching the melt quickly on water cooled copper plate formation of a compact melt droplet #5 before layer formation 1992-10-02 mechanical embedding the melt droplet into epoxy resin #6 during layer formation 1992-10-02 mechanical polishing of the embedded sulfide melt droplet to obtain a smooth and flat surface - Comments
- The processing steps 2-4 were conducted under argon atmosphere, because Mg-rich sulfides are easily attacked by atmospheric moisture.