GB830662A - Improvements in or relating to processes for the production of graphite - Google Patents

Improvements in or relating to processes for the production of graphite

Info

Publication number
GB830662A
GB830662A GB3300956A GB3300956A GB830662A GB 830662 A GB830662 A GB 830662A GB 3300956 A GB3300956 A GB 3300956A GB 3300956 A GB3300956 A GB 3300956A GB 830662 A GB830662 A GB 830662A
Authority
GB
United Kingdom
Prior art keywords
nickel
atmosphere
graphite
heated
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3300956A
Inventor
Hugh Wilson David Son
John Walter Ryde
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3300956A priority Critical patent/GB830662A/en
Publication of GB830662A publication Critical patent/GB830662A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
    • C04B41/5144—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal with a composition mainly composed of one or more of the metals of the iron group
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/88—Metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The permeability of graphite to gas or liquids is reduced by coating its external surface with nickel, the surface being heated to at least the decomposition temperature of nickel carbonyl and subjected to an atmosphere of or containing nickel carbonyl and the resulting nickel deposit being heated so that it flows. The surface is preferably heated by induction to a temperature of 200 DEG -500 DEG C. when contacted with said atmosphere which may consist of nickel carbonyl entrained in hydrogen or nitrogen. Part of the atmosphere may be bled off to deposit nickel upon glass beads as a control. The final heating is performed at a temperature of 1200 DEG 1400 DEG C., and the resulting coated graphite may be used in a nuclear reactor as a moderator, fuel element channel, supporting tube for fuel elements in a fuel element channel, and as cladding material for fuel elements.
GB3300956A 1956-10-29 1956-10-29 Improvements in or relating to processes for the production of graphite Expired GB830662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3300956A GB830662A (en) 1956-10-29 1956-10-29 Improvements in or relating to processes for the production of graphite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3300956A GB830662A (en) 1956-10-29 1956-10-29 Improvements in or relating to processes for the production of graphite

Publications (1)

Publication Number Publication Date
GB830662A true GB830662A (en) 1960-03-16

Family

ID=10347306

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3300956A Expired GB830662A (en) 1956-10-29 1956-10-29 Improvements in or relating to processes for the production of graphite

Country Status (1)

Country Link
GB (1) GB830662A (en)

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