Improvements in or relating to methods of protecting graphite surfaces

Graphite is protected against corrosion by exposing it to an atmosphere of or including nickel carbonyl at room temperature to cause nickel to be deposited on at least part of its surface (both internal and external), and heating the surface in an atmosphere free from nickel carbonyl and any decompo...

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Bibliographische Detailangaben
Hauptverfasser:	RYDE JOHN WALTER, DAVIDSON HUGH WILSON
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIME, MAGNESIA METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION REFRACTORIES SLAG TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	Graphite is protected against corrosion by exposing it to an atmosphere of or including nickel carbonyl at room temperature to cause nickel to be deposited on at least part of its surface (both internal and external), and heating the surface in an atmosphere free from nickel carbonyl and any decomposition products of the deposition process to stabilize the deposited nickel. The heating may take place in an inert atmosphere, e.g. argon, at a temperature of 500 DEG C. The process is applied to the protection of graphite components in nuclear reactors (see Group XL(a)). Specification 791,011 is referred to.