FeO, synthetic | DOCCD

Sample

Name: FeO, synthetic

Owner of sample

Database

DOCCD

Experimentalists

Origin of sample

Date: 1995-01-01

Physical characteristics

Thickness: 2.0 $mm$
Diameter: 10.0 $mm$
Surface roughness: polished
Comments: The sample was synthesized by melting in an arc furnance and subsequent quenching of the melt droplet (Henning et al. 1995).

Sample environment: Temperature

Temperature: 300.0 $\pm$ 5.0 $K$
Temperature max: 300.0 $K$

Sample environment: Fluid

Type: ambient air
Fluid temperature: 300.0 $K$
Fluid pressure: 1000.0 $mbar$

Documentation and publication

Publications

Henning et al., 1995, Astron. Astrophys. Suppl., 112, 143 - 149

Layers in sample

Number

Layers

FeO , 2.0 $mm$

Sample processings

Title

Synthesis and preparation of the FeO sample

Produced sample

Sample

FeO, synthetic (this sample)

Processing steps

Step	Chronology	Date	Type	Process	Changes
#1	before layer formation	1995-01-01	thermal	melting of ferrous oxalate in an arc furnance under argon atmosphere	changing composition to FeO
#2	before layer formation	1995-01-01	thermal	quenching the melt quickly on water cooled copper plate	formation of a melt droplet
#3	before layer formation	1995-01-01	mechanical	embedding the melt droplet into epoxy resin
#4	during layer formation	1995-01-01	mechanical	polishing of the embedded FeO melt droplet to obtain a smooth and flat surface

Comments

Argon atmosphere during melting was used to provide inert conditions and thus to suppress oxidation of divalent (ferrous) iron to trivalent (ferric) iron.