FR2229785A1 - Forming alumina coatings on e.g. refractory substrates - to give improved heat and wear resistance - Google Patents

Forming alumina coatings on e.g. refractory substrates - to give improved heat and wear resistance

Info

Publication number
FR2229785A1
FR2229785A1 FR7317788A FR7317788A FR2229785A1 FR 2229785 A1 FR2229785 A1 FR 2229785A1 FR 7317788 A FR7317788 A FR 7317788A FR 7317788 A FR7317788 A FR 7317788A FR 2229785 A1 FR2229785 A1 FR 2229785A1
Authority
FR
France
Prior art keywords
alumina
wear resistance
improved heat
give improved
forming alumina
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Withdrawn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
FR7317788A
Other languages
French (fr)
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.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to FR7317788A priority Critical patent/FR2229785A1/en
Publication of FR2229785A1 publication Critical patent/FR2229785A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

Process for forming an alumina coating on a substrate by melt spraying and alumina source comprises flame spraying a mixt. of alumina and a small amt. of Al(alloy) or delta - type alumina onto a refractory surface of the substrate. Pref. 2-20 wt.% Al are mixed with the alumina (Al2O3) to form the alumina source. Partic. when delta -type alumina is used, it forms >80% of the total alumina. This gives wide application to use of alpha-Al2O3 as heat and corrosion-resistant coating for e.g. blast furnace tuyere inlets.
FR7317788A 1973-05-16 1973-05-16 Forming alumina coatings on e.g. refractory substrates - to give improved heat and wear resistance Withdrawn FR2229785A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7317788A FR2229785A1 (en) 1973-05-16 1973-05-16 Forming alumina coatings on e.g. refractory substrates - to give improved heat and wear resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7317788A FR2229785A1 (en) 1973-05-16 1973-05-16 Forming alumina coatings on e.g. refractory substrates - to give improved heat and wear resistance

Publications (1)

Publication Number Publication Date
FR2229785A1 true FR2229785A1 (en) 1974-12-13

Family

ID=9119438

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7317788A Withdrawn FR2229785A1 (en) 1973-05-16 1973-05-16 Forming alumina coatings on e.g. refractory substrates - to give improved heat and wear resistance

Country Status (1)

Country Link
FR (1) FR2229785A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402532A1 (en) * 1977-09-07 1979-04-06 Alusuisse WEAR-RESISTANT COATING OF THE WORKING SURFACE OF MECHANICAL PARTS IN THE FORM OF ALUMINUM OR ALUMINUM ALLOY DISCS
EP0546756A2 (en) * 1991-12-12 1993-06-16 General Electric Company Pre-oxidation of alloy powder coatings

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402532A1 (en) * 1977-09-07 1979-04-06 Alusuisse WEAR-RESISTANT COATING OF THE WORKING SURFACE OF MECHANICAL PARTS IN THE FORM OF ALUMINUM OR ALUMINUM ALLOY DISCS
EP0546756A2 (en) * 1991-12-12 1993-06-16 General Electric Company Pre-oxidation of alloy powder coatings
EP0546756A3 (en) * 1991-12-12 1993-11-10 Gen Electric Pre-oxidation of alloy powder coatings

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Legal Events

Date Code Title Description
ST Notification of lapse