DE1269559B - Verfahren zur Korrosionsschutzbehandlung von Gegenstaenden aus Graphit und nach diesem Verfahren behandelte Graphitgegenstaende - Google Patents

Verfahren zur Korrosionsschutzbehandlung von Gegenstaenden aus Graphit und nach diesem Verfahren behandelte Graphitgegenstaende

Info

Publication number
DE1269559B
DE1269559B DEP1269A DE1269559A DE1269559B DE 1269559 B DE1269559 B DE 1269559B DE P1269 A DEP1269 A DE P1269A DE 1269559 A DE1269559 A DE 1269559A DE 1269559 B DE1269559 B DE 1269559B
Authority
DE
Germany
Prior art keywords
graphite
silicon
mixture
hydrogen
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.)
Withdrawn
Application number
DEP1269A
Other languages
German (de)
English (en)
Inventor
Michel Besson
Jean Elston
Pierre Morize
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of DE1269559B publication Critical patent/DE1269559B/de
Withdrawn legal-status Critical Current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
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/956—Silicon carbide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/956—Silicon carbide
    • C01B32/963—Preparation from compounds containing silicon
    • 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
    • C04B41/5053—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 non-oxide ceramics
    • C04B41/5057—Carbides
    • C04B41/5059—Silicon carbide
    • 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
    • C04B41/87—Ceramics
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/12—Moderator or core structure; Selection of materials for use as moderator characterised by composition, e.g. the moderator containing additional substances which ensure improved heat resistance of the moderator
    • G21C5/126—Carbonic moderators
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00862—Uses not provided for elsewhere in C04B2111/00 for nuclear applications, e.g. ray-absorbing concrete
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Carbon And Carbon Compounds (AREA)
DEP1269A 1965-06-09 1966-06-07 Verfahren zur Korrosionsschutzbehandlung von Gegenstaenden aus Graphit und nach diesem Verfahren behandelte Graphitgegenstaende Withdrawn DE1269559B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR20088A FR1448867A (fr) 1965-06-09 1965-06-09 Procédé de traitement d'articles en graphite et produits conformes à ceux obtenuspar application dudit procédé

Publications (1)

Publication Number Publication Date
DE1269559B true DE1269559B (de) 1968-05-30

Family

ID=8581338

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP1269A Withdrawn DE1269559B (de) 1965-06-09 1966-06-07 Verfahren zur Korrosionsschutzbehandlung von Gegenstaenden aus Graphit und nach diesem Verfahren behandelte Graphitgegenstaende

Country Status (8)

Country Link
BE (1) BE682311A (fr)
CH (1) CH459042A (fr)
DE (1) DE1269559B (fr)
ES (1) ES327660A1 (fr)
FR (1) FR1448867A (fr)
GB (1) GB1089785A (fr)
LU (1) LU51269A1 (fr)
NL (1) NL153509B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006040309A1 (de) * 2006-08-29 2008-03-13 Ald Vacuum Technologies Gmbh Kugelförmiges Brennelement und dessen Herstellung für gasgekühlte Hochtemperatur-Kugelhaufen-Kernreaktoren (HTR)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4287259A (en) * 1979-12-05 1981-09-01 The United States Of America As Represented By The United States Department Of Energy Preparation and uses of amorphous boron carbide coated substrates
US4871587A (en) * 1982-06-22 1989-10-03 Harry Levin Process for coating an object with silicon carbide
CA1287711C (fr) * 1984-11-30 1991-08-20 Paul E. Gray Composities de carbone-carbone proteges contre l'oxydation
GB8503876D0 (en) * 1985-02-15 1985-03-20 Ontario Research Foundation Chemical vapour deposition of titanium borides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006040309A1 (de) * 2006-08-29 2008-03-13 Ald Vacuum Technologies Gmbh Kugelförmiges Brennelement und dessen Herstellung für gasgekühlte Hochtemperatur-Kugelhaufen-Kernreaktoren (HTR)
DE102006040309B4 (de) * 2006-08-29 2009-04-16 Ald Vacuum Technologies Gmbh Kugelförmiges Brennelement und dessen Herstellung für gasgekühlte Hochtemperatur-Kugelhaufen-Kernreaktoren (HTR)
US8243871B2 (en) 2006-08-29 2012-08-14 Ald Vacuum Technologies Gmbh Spherical fuel element and production thereof for gas-cooled high temperature pebble bed nuclear reactors (HTR)

Also Published As

Publication number Publication date
CH459042A (fr) 1968-06-30
NL6607842A (fr) 1966-12-12
BE682311A (fr) 1966-11-14
FR1448867A (fr) 1966-08-12
GB1089785A (en) 1967-11-08
ES327660A1 (es) 1969-09-01
LU51269A1 (fr) 1966-08-08
NL153509B (nl) 1977-06-15

Similar Documents

Publication Publication Date Title
DE2613787C3 (de) Verfahren zur Bildung eines Schutzfilmes auf der Oberfläche eines Nickel-Chrom- oder Eisenlegierungs-Substrates
DE2612296C3 (de) Verfahren zur Herstellung von Graphitmaterial
DE1771169A1 (de) Graphit-Susceptor
DE3305057A1 (de) Verfahren zur herstellung von siliciumcarbid-whiskern
DE1208740B (de) Verfahren zur Herstellung reiner Kieselsaeure durch Verdampfen einer oxydierbaren Siliciumverbindung in einem elementaren und/oder gebundenen Sauerstoff enthaltenden Gasstrom
DE1667525A1 (de) Pyrolytischer Graphit,insbesondere mit pyrolytischem Graphit beschichtete Kernbrennstoffteilchen fuer einen Kernreaktor,sowie Verfahren zur Herstellung des pyrolytischen Graphits und zur Beschichtung der Kernbrennstoffteilchen mit pyrolytischem Graphit
DE1951359B2 (de) Verfahren zum Überziehen eines Trägermaterials mit einem Metall-Karbonitrid
DE112010004412T5 (de) Verfahren zum reinigen metallurgischen siliziums
DE3026030C2 (de) Vorrichtungsteil für die Halbleitertechnik, Verfahren und Vorrichtung zu dessen Herstellung
DE1915670A1 (de) Kernbrennstoffpartikel und Verfahren zu deren Herstellung
DE3315971C2 (fr)
DE2124400C3 (de) Verfahren zur Abscheidung von anorganischen Überzügen aus der Dampfphase
DE1269559B (de) Verfahren zur Korrosionsschutzbehandlung von Gegenstaenden aus Graphit und nach diesem Verfahren behandelte Graphitgegenstaende
DE2253684A1 (de) Verfahren zum defluorieren und reduzieren einer keramik
DE2121975C3 (de) Verfahren zur Entfernung von Verunreinigungen in Kohlenstoffkörpern
DE1471511C3 (de) Verfahren zur Herstellung von Urancarbidsphäroiden
DE2819219A1 (de) Verfahren zur kohlenwasserstoffumwandlung
DE1464901C3 (de) Verfahren zum Aufbringen einer spaltprodukthemmenden Umhüllung auf Kernbrennstoffteilchen
DE2415717A1 (de) Verfahren zum gezielten einbringen von dotierungsmaterial in einen halbleiterkristallstab
DE2058239A1 (de) Impraegnierter Graphitwerkstoff,insbesondere fuer kerntechnische Zwecke
DE2122299A1 (de) Verfahren zur Herstellung von wasserfreiem Chromsesquioxid durch Reduktion einer sechswertigen Chromverbindung
DE1195729B (de) Verfahren zum Herstellen von Koerpern aus hochreinem Siliziumkarbid
DE1817339C3 (de) Verfahren zum Herstellen eines Carbonitrid-Überzuges
AT262379B (de) Verfahren zur Erzeugung von hochreinen Siliziumkarbid-Schichten für Halbleiterzwecke
AT239855B (de) Verfahren zur Herstellen einer Halbleiteranordnung

Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee