- Database
- Experimentalists
- Date
- 2000-01-01
- Thickness
- 1.0 $mm$
- Surface roughness
- polished
- Temperature
- 300.0 $\pm$ 5.0 $K$
- Temperature max
- 2408.0 $K$
- Type
- ambient air
- Fluid temperature
- 300.0 $K$
- Fluid pressure
- 1000.0 $mbar$
- Number
- 1
- Layers
-
- Mg$_{0.43}$Al$_{2.38}$O$_{4}$ , 1.0 $mm$
- Title
- Synthesis and preparation of nonstoichiometric spinel
- Sample
- Mg$_{0.53}$Al$_{2.31}$O$_{4}$
- Processing steps
-
Step Chronology Date Type Process Changes #1 before layer formation 2000-01-01 mixing mixing MgCO$_{3}$ and Al(OH)$_{3}$ in the corresponding portion to a compound mass of 2 g #2 before layer formation 2000-01-01 thermal heating the mixture to 1273 K and holding the temperature for 1 hour decomposition to aluminium oxide and magnesium oxide #3 before layer formation 2000-01-01 pressure homogenization of the decomposites in an agate mortar and production of pressed pellets of the material #4 before layer formation 2000-01-01 thermal melting of the pellets in a tungsten electric-arc furnace in 1 bar argon atmosphere #5 before layer formation 2000-01-01 thermal quenching of the melt droplet on a water cooled copper plate formation of a compact melt droplet #6 before layer formation 2000-01-01 mechanical embedding the melt droplet into epoxy resin #7 during layer formation 2000-01-01 mechanical polishing of the embedded spinel melt droplet to obtain a plane surface for reflection measurements