- Database
- Experimentalists
- Date
- 1997-01-01
- 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
- Comments
- Crystallographic orientation was realized by the Laue diffraction method
- 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
- Synthesis and sample preparation of fayalite crystal
- Sample
- Fayalite crystal, surface perpendicular to the b-axis (this sample)
- Processing steps
-
Step Chronology Date Type Process Changes #1 before layer formation thermal crystal growth by the scull method (Physical Institute of the University of Frankfurt/Main, W. Assmus), inductive melting of polycrystalline fayalite with subsequent slow cooling in a sinter crust crucible under defined oxygen partial pressure transformation from polycrystalline to monocrystalline fayalite #2 during layer formation layer formation selection of large crystals and crystallographic orientation by Laue method, surface perpendicular to b-axis #3 after layer formation mechanical embedding the oriented fayalite crystal in epoxide resin and polishing