GB865320A - Improvements in and relating to oxidation resistant articles - Google Patents

Improvements in and relating to oxidation resistant articles

Info

Publication number
GB865320A
GB865320A GB28861/58A GB2886158A GB865320A GB 865320 A GB865320 A GB 865320A GB 28861/58 A GB28861/58 A GB 28861/58A GB 2886158 A GB2886158 A GB 2886158A GB 865320 A GB865320 A GB 865320A
Authority
GB
United Kingdom
Prior art keywords
article
glass
borophosphate
carbon
phosphate
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
GB28861/58A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB865320A publication Critical patent/GB865320A/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
    • C04B41/5076—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 with masses bonded by inorganic cements
    • C04B41/5092—Phosphate cements
    • 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

Abstract

Zinc phosphate and/or borophosphate and/or a mixture of substances which produces zinc phosphate and/or borophosphate on heating are incorporated in a carbon or graphite article. The resulting article is thereafter heated preferably in a non-oxidising atmosphere so as to produce an oxidation-resistant protective coating of molten zinc phosphate or borophosphate. On sufficient heating, e.g. to 800-900 DEG C., a glass is formed. The article may contain 4-10% of glass. The mixture of substances may be zinc chloride and one or more of di-ammonium hydrogen phosphate, phosphoric acid, and borophosphoric acid, optionally together with boric acid. Diammonium hydrogen phosphate, zinc chloride, and boric acid may be used in a ratio of between 4:1:0 and 2:2:0.25, preferably 3:1:0.25. The glass-producing material may be incorporated in a carbon mix which is thereafter heated to form the carbon or graphite article, or a preformed article may be impregnated with a 1.5% aqueous hydrochloric acid solution containing 20-45% of glass-producing material and optionally 0.1% of a wetting agent. Impregnation may be effected under pressure, and may be repeated one or more times. The impregnated article may be dried at room temperature to 110 DEG C.
GB28861/58A 1957-09-10 1958-09-09 Improvements in and relating to oxidation resistant articles Expired GB865320A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US865320XA 1957-09-10 1957-09-10

Publications (1)

Publication Number Publication Date
GB865320A true GB865320A (en) 1961-04-12

Family

ID=22199199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28861/58A Expired GB865320A (en) 1957-09-10 1958-09-09 Improvements in and relating to oxidation resistant articles

Country Status (1)

Country Link
GB (1) GB865320A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480296A1 (en) * 1980-04-15 1981-10-16 Domtar Inc PHOSPHORUS-MODIFIED BRAI COMPOSITIONS AND PROCESS FOR PREPARING THE SAME
FR2480295A1 (en) * 1980-04-15 1981-10-16 Domtar Inc BRAI COMPOSITION AND PROCESS FOR PREPARING THEM
US4469585A (en) * 1983-05-09 1984-09-04 Samuel Cukier Oxidation resistant pitches
EP0223205A1 (en) * 1985-11-13 1987-05-27 Union Carbide Corporation Oxidation retarded graphite or carbon electrode and method for producing the electrode
WO1988007506A2 (en) * 1987-03-30 1988-10-06 Allied-Signal Inc. Barrier coating and penetrant providing oxidation protection for carbon-carbon materials
CN109437173A (en) * 2018-11-05 2019-03-08 上海弘枫实业有限公司 A kind of preparation process of fire-resistant oxidation resistant graphite
CN114516762A (en) * 2022-02-25 2022-05-20 成都百里恒新材料有限公司 Carbon product impregnation protective agent and preparation method thereof
CN115028471A (en) * 2022-06-10 2022-09-09 中南大学 Carbon material product antioxidant inorganic coating and application thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480296A1 (en) * 1980-04-15 1981-10-16 Domtar Inc PHOSPHORUS-MODIFIED BRAI COMPOSITIONS AND PROCESS FOR PREPARING THE SAME
FR2480295A1 (en) * 1980-04-15 1981-10-16 Domtar Inc BRAI COMPOSITION AND PROCESS FOR PREPARING THEM
US4469585A (en) * 1983-05-09 1984-09-04 Samuel Cukier Oxidation resistant pitches
EP0223205A1 (en) * 1985-11-13 1987-05-27 Union Carbide Corporation Oxidation retarded graphite or carbon electrode and method for producing the electrode
WO1988007506A2 (en) * 1987-03-30 1988-10-06 Allied-Signal Inc. Barrier coating and penetrant providing oxidation protection for carbon-carbon materials
WO1988007506A3 (en) * 1987-03-30 1988-10-20 Allied Signal Inc Barrier coating and penetrant providing oxidation protection for carbon-carbon materials
US4837073A (en) * 1987-03-30 1989-06-06 Allied-Signal Inc. Barrier coating and penetrant providing oxidation protection for carbon-carbon materials
CN109437173A (en) * 2018-11-05 2019-03-08 上海弘枫实业有限公司 A kind of preparation process of fire-resistant oxidation resistant graphite
CN114516762A (en) * 2022-02-25 2022-05-20 成都百里恒新材料有限公司 Carbon product impregnation protective agent and preparation method thereof
CN115028471A (en) * 2022-06-10 2022-09-09 中南大学 Carbon material product antioxidant inorganic coating and application thereof
CN115028471B (en) * 2022-06-10 2023-09-26 中南大学 Antioxidant inorganic coating for carbon material product and application thereof

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