- Database
- Experimentalists
- Date
- 1994-01-01
- Provider
- Astrophysical Institute and University Observatory Jena
- Surface roughness
- polished
- Substrate material
- epoxy resin (epofix)
- Substrate comments
- sample rear side embedded in resin (25mm diam.) for handling during polishing and measurement
- Temperature
- 300.0 $\pm$ 5.0 $K$
- Temperature max
- 300.0 $K$
- Type
- ambient air
- Fluid temperature
- 300.0 $K$
- Fluid pressure
- 1000.0 $mbar$
- Title
- Sample synthesis in arc furnace under inert conditions
- Sample
- Embedded/polished (Fe,Mg)O melt droplet, stoichiometric Fe content 0.9 (this sample)
- Processing steps
-
Step Chronology Date Type Process Changes #1 before layer formation mixing mixing magnetite, metallic iron or ferrous oxalate with magnesium carbonate under inert conditions #2 during layer formation pressure pressing the stoichiometric mixture to a pellet under inert conditions #3 during layer formation thermal melting the pellet in an arc furnace under argon atmosphere #4 during layer formation thermal quenching melt droplets of 5-10 mm diameter on water cooled copper plate #5 after layer formation mechanical embedding part of the droplet in epoxide resin and polishing