FR2389584A1 - - Google Patents

Info

Publication number
FR2389584A1
FR2389584A1 FR7812849A FR7812849A FR2389584A1 FR 2389584 A1 FR2389584 A1 FR 2389584A1 FR 7812849 A FR7812849 A FR 7812849A FR 7812849 A FR7812849 A FR 7812849A FR 2389584 A1 FR2389584 A1 FR 2389584A1
Authority
FR
France
Prior art keywords
powder
sintering
enclosed
blank
group ivb
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Withdrawn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
FR7812849A
Other languages
English (en)
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.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
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 PPG Industries Inc filed Critical PPG Industries Inc
Publication of FR2389584A1 publication Critical patent/FR2389584A1/fr
Withdrawn legal-status Critical Current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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C04B35/58064—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C04B35/58064—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
    • C04B35/58071—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides based on titanium borides
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C04B35/58064—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
    • C04B35/58078—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides based on zirconium or hafnium borides
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Ceramic Products (AREA)

Abstract

Procédé de fabrication d'articles en diborures de métaux du Groupe IVb, par pressage à froid et frittage de la poudre. La poudre de diborures de métaux du Groupe IVb est pressée dans un moule substantiellement en-dessous des températures de frittage, afin de former une ébauche pressée à froid, ayant un tassement pratiquement uniforme sur ses surfaces principales. La pièce est enfermée, mais pas resserrée, dans un réceptacle thermiquement conducteur qui a été préchauffé pour chasser les impuretés volatiles, et la pièce enfermée est frittée sans application simultanée de pression. La poudre et l'ébauche sont maintenues sous atmosphère inerte avant et pendant le frittage. Application notamment à la production de pièces plates, où le gauchissement pendant le frittage peut causer un problème.
FR7812849A 1977-05-02 1978-04-28 Withdrawn FR2389584A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79264077A 1977-05-02 1977-05-02
US05/894,972 US4275025A (en) 1977-05-02 1978-04-10 Refractory metal diboride articles by cold pressing and sintering

Publications (1)

Publication Number Publication Date
FR2389584A1 true FR2389584A1 (fr) 1978-12-01

Family

ID=27121313

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7812849A Withdrawn FR2389584A1 (fr) 1977-05-02 1978-04-28

Country Status (7)

Country Link
US (1) US4275025A (fr)
JP (1) JPS53146710A (fr)
CA (1) CA1116379A (fr)
DE (1) DE2818418A1 (fr)
FR (1) FR2389584A1 (fr)
GB (1) GB1604901A (fr)
NO (1) NO781522L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468564A1 (fr) * 1979-11-02 1981-05-08 Ppg Industries Inc Procede de fabrication de produits faconnes en diborure de titane
WO1986006366A1 (fr) * 1985-04-26 1986-11-06 Martin Marietta Corporation Composities d'aluminium-ceramique

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353885A (en) * 1979-02-12 1982-10-12 Ppg Industries, Inc. Titanium diboride article and method for preparing same
EP0085093A4 (fr) * 1981-07-27 1984-04-27 Great Lakes Carbon Corp Metaux refractaires durs frittes.
US4526669A (en) * 1982-06-03 1985-07-02 Great Lakes Carbon Corporation Cathodic component for aluminum reduction cell
US4983340A (en) * 1989-12-28 1991-01-08 Union Carbide Coatings Service Technology Corporation Method for forming a high density metal boride composite
DE4436274A1 (de) * 1994-10-11 1996-04-18 Schlafhorst & Co W Serviceeinrichtung für eine Kreuzspulen herstellende Textilmaschine
US6417126B1 (en) * 2000-02-24 2002-07-09 C-Max Technology, Inc. Ceramics and process for producing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1445043A (fr) * 1965-07-28 1966-07-08 Atomic Energy Authority Uk Procédé de frittage
FR2324590A1 (fr) * 1975-02-03 1977-04-15 Ppg Industries Inc Poudre sous-micronique de borure de metal refractaire et procede pour sa preparation

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202600A (en) * 1951-05-04 1965-08-24 British Aluminium Co Ltd Current conducting element for aluminum reduction cells
US2982533A (en) * 1957-01-08 1961-05-02 Metallgesellschaft Ag Sintering process and apparatus
US3011927A (en) * 1958-12-11 1961-12-05 Phillips Petroleum Co Nitrided metals
US3003885A (en) * 1960-02-01 1961-10-10 Union Carbide Corp Titanium diboride article
US3215545A (en) * 1962-12-26 1965-11-02 Union Carbide Corp Titanium diboride articles and method for making same
GB1010492A (en) * 1963-02-15 1965-11-17 United States Borax Chem Improvements in or relating to the production of titanium diboride bodies
US3411959A (en) * 1966-03-21 1968-11-19 Westinghouse Electric Corp Method for producing tantalum carbide and tantalum-alloy carbide filaments
US3472709A (en) * 1966-03-25 1969-10-14 Nasa Method of producing refractory composites containing tantalum carbide,hafnium carbide,and hafnium boride
US3467745A (en) * 1966-03-29 1969-09-16 Carborundum Co Method of forming hot pressed refractory carbide bodies having shaped cavities
US3586303A (en) * 1969-05-19 1971-06-22 Westinghouse Electric Corp Carbon mold for manufacture of tantalum carbide filaments
US3589694A (en) * 1969-08-19 1971-06-29 Philips Corp Supporting plate for objects to be subjected to a thermal treatment
US3979500A (en) * 1973-05-02 1976-09-07 Ppg Industries, Inc. Preparation of finely-divided refractory powders of groups III-V metal borides, carbides, nitrides, silicides and sulfides
US3831297A (en) * 1973-06-27 1974-08-27 Caterpillar Tractor Co Replaceable cutting edge assembly with wedge means
US4097567A (en) * 1976-08-25 1978-06-27 Aluminum Company Of America Titanium diboride shapes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1445043A (fr) * 1965-07-28 1966-07-08 Atomic Energy Authority Uk Procédé de frittage
FR2324590A1 (fr) * 1975-02-03 1977-04-15 Ppg Industries Inc Poudre sous-micronique de borure de metal refractaire et procede pour sa preparation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468564A1 (fr) * 1979-11-02 1981-05-08 Ppg Industries Inc Procede de fabrication de produits faconnes en diborure de titane
WO1986006366A1 (fr) * 1985-04-26 1986-11-06 Martin Marietta Corporation Composities d'aluminium-ceramique

Also Published As

Publication number Publication date
GB1604901A (en) 1981-12-16
CA1116379A (fr) 1982-01-19
JPS53146710A (en) 1978-12-20
NO781522L (no) 1978-11-03
DE2818418A1 (de) 1978-11-09
US4275025A (en) 1981-06-23

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
DI Inadmissibility of an action of restoration
AR Application made for restoration
DI Inadmissibility of an action of restoration