THE HIGH TEMPERATURE OXIDATION OF BERYLLIUM. PART II. THE REACTION WITH CARBON DIOXIDE AND WITH CARBON MONOXIDE

Journal Article · Thu Sep 01 04:00:00 EDT 1960 · J. Nuclear Materials

DOI:https://doi.org/10.1016/0022-3115(60)90057-X· OSTI ID:4130821

Gregg, S J; Hussey, R J; Jepson, W B

The chemistry of the reaction of French Flake beryllium with carbon dioxide and with carbon monoxide was investigated at 500 to 750 deg C by a radioactive tracer technique. The results lead to the conclusion that the following reactions occur: Be + CO/sub 2/ = BeO + CO;2Be + CO/sub 2/ = 2ReO + C; and Be + CO = BeO + C. It is argued that the beryllium carbide which is present in the oxide layer is formed by the reaction 2Be + C = Be/sub 2/C and not directly according to 4Re + CO/sub 2/ = 2BeO + Be/sub 2/C or 3Be + CO = BeO + Be/ sub 2/C. There was no evidence for the reaction of carbon dioxide with deposited carbon according to the equilibrium C + CO/sub 2/ ? 2CO, nor for the reverse reaction, viz. the decomposition of carbon monoxide to deposit carbon and evolve carbon dioxide. A less detailed investigation suggests that for oxidation in carbon monoxide-- carbon dioxide mixtures, there exists a minimal concentration of carbon monoxide above which carbon monoxide also reacts with beryllium. (auth)

• Research Organization: Univ. of Exeter, Eng.
• NSA Number: NSA-15-000576
• OSTI ID: 4130821
• Journal Information: J. Nuclear Materials, Journal Name: J. Nuclear Materials Vol. Vol: 2
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BERYLLIUM
BERYLLIUM CARBIDES
BERYLLIUM OXIDES
CARBON
CARBON DIOXIDE
CARBON MONOXIDE
CHEMICAL REACTIONS
DECOMPOSITION
FILMS
HIGH TEMPERATURE
METALS, CERAMICS, AND OTHER MATERIALS
OXIDATION
TRACER TECHNIQUES