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SE7600919L - SET TO MAKE A FOREMAL OF SILICON NITRID - Google Patents

SET TO MAKE A FOREMAL OF SILICON NITRID

Info

Publication number
SE7600919L
SE7600919L SE7600919A SE7600919A SE7600919L SE 7600919 L SE7600919 L SE 7600919L SE 7600919 A SE7600919 A SE 7600919A SE 7600919 A SE7600919 A SE 7600919A SE 7600919 L SE7600919 L SE 7600919L
Authority
SE
Sweden
Prior art keywords
porous layer
layer
temperature
pressure medium
impermeable
Prior art date
Application number
SE7600919A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE396371B (en
Inventor
J Adlerborn
H Larker
Original Assignee
Asea Ab
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
Priority to AU21574/77A priority Critical patent/AU507155B2/en
Application filed by Asea Ab filed Critical Asea Ab
Priority to SE7600919A priority patent/SE396371B/en
Priority to DE2702073A priority patent/DE2702073C2/en
Priority to FR7702106A priority patent/FR2339582A1/en
Priority to SU772444414A priority patent/SU651687A3/en
Priority to ZA770476A priority patent/ZA77476B/en
Priority to CA270,575A priority patent/CA1091907A/en
Priority to JP52008198A priority patent/JPS5935870B2/en
Priority to GB3490/77A priority patent/GB1564851A/en
Priority to IT67184/77A priority patent/IT1192228B/en
Publication of SE7600919L publication Critical patent/SE7600919L/en
Publication of SE396371B publication Critical patent/SE396371B/en

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
    • C04B35/584—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 silicon nitride
    • C04B35/593—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 silicon nitride obtained by pressure sintering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/1208—Containers or coating used therefor
    • B22F3/1216—Container composition
    • B22F3/1241—Container composition layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/1208—Containers or coating used therefor
    • B22F3/125—Initially porous container

Landscapes

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

Abstract

Method of manufacturing an object of silicon nitride by isostatic pressing of a preformed body of silicon nitride powder with a pressure medium at a temperature required for sintering the silicon nitride, the preformed body then being subjected to a degassing before the isostatic pressing, characterized in that on the preformed powder body there are applied an inner porous layer of a first material and outside this an outer porous layer of a second material, the inner porous layer, possibly in cooperation with the second material, being transformable into a layer, impermeable for the pressure medium, at a temperature below the sintering temperature for the silicon nitride and the outer porous layer being transformable into a layer, impermeable for the pressure medium, at a temperature which is lower than that for the inner porous layer, whereafter the preformed body is first subjected to a degassing and to a heating to a temperature which is required for the formation of a layer, impermeable for the pressure medium of the outer porous layer but which maintains the inner porous layer porous, and then to a heating to a temperature which is required for the formation of a layer, impermeable for the pressure medium, of the inner porous layer while maintaining a pressure outside said layers which is greater than the gas pressure inside these layers, the isostatic pressing of the preformed product then being carried out.
SE7600919A 1976-01-29 1976-01-29 TECHNICAL PRESSING OF A BODY DISTRIBUTED BY SILICON NITRID POWER METHOD OF PRODUCING A FOREMAL OF SILICONE NITRID THROUGH ISOSTA SE396371B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
AU21574/77A AU507155B2 (en) 1976-01-29 1976-01-24 Silicon nitride article
SE7600919A SE396371B (en) 1976-01-29 1976-01-29 TECHNICAL PRESSING OF A BODY DISTRIBUTED BY SILICON NITRID POWER METHOD OF PRODUCING A FOREMAL OF SILICONE NITRID THROUGH ISOSTA
DE2702073A DE2702073C2 (en) 1976-01-29 1977-01-19 Method of manufacturing a pressure-sintered body by hot isostatic pressing
FR7702106A FR2339582A1 (en) 1976-01-29 1977-01-26 PROCESS FOR THE MANUFACTURE OF A SILICON NITRIDE OBJECT
SU772444414A SU651687A3 (en) 1976-01-29 1977-01-26 Method of manufacturing articles from silicon nitride
ZA770476A ZA77476B (en) 1976-01-29 1977-01-27 Method of manufacturing an object of silicon nitride
CA270,575A CA1091907A (en) 1976-01-29 1977-01-27 Method of manufacturing an object of silicon nitride
JP52008198A JPS5935870B2 (en) 1976-01-29 1977-01-27 Silicon nitride object manufacturing method
GB3490/77A GB1564851A (en) 1976-01-29 1977-01-28 Method of manufacturing an object of silicon nitride
IT67184/77A IT1192228B (en) 1976-01-29 1977-01-28 PROCEDURE FOR THE MANUFACTURE OF SILICON NITRIDE ITEMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7600919A SE396371B (en) 1976-01-29 1976-01-29 TECHNICAL PRESSING OF A BODY DISTRIBUTED BY SILICON NITRID POWER METHOD OF PRODUCING A FOREMAL OF SILICONE NITRID THROUGH ISOSTA

Publications (2)

Publication Number Publication Date
SE7600919L true SE7600919L (en) 1977-07-30
SE396371B SE396371B (en) 1977-09-19

Family

ID=20326840

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7600919A SE396371B (en) 1976-01-29 1976-01-29 TECHNICAL PRESSING OF A BODY DISTRIBUTED BY SILICON NITRID POWER METHOD OF PRODUCING A FOREMAL OF SILICONE NITRID THROUGH ISOSTA

Country Status (10)

Country Link
JP (1) JPS5935870B2 (en)
AU (1) AU507155B2 (en)
CA (1) CA1091907A (en)
DE (1) DE2702073C2 (en)
FR (1) FR2339582A1 (en)
GB (1) GB1564851A (en)
IT (1) IT1192228B (en)
SE (1) SE396371B (en)
SU (1) SU651687A3 (en)
ZA (1) ZA77476B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2737266C2 (en) * 1977-08-18 1987-08-20 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Process for encapsulating a molded body made of silicon ceramic for hot isostatic pressing
DE2737208C2 (en) * 1977-08-18 1986-06-19 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Process for encapsulating a molded body made of ceramic
SE414920C (en) * 1978-05-02 1982-03-15 Asea Ab SET TO MAKE A FORM OF A MATERIAL IN THE FORM OF A POWDER THROUGH ISOSTATIC PRESSING OF A POWDER-FORMATED BODY
SE414922B (en) * 1978-05-02 1980-08-25 Asea Ab SET TO MAKE A FORMULA OF SILICON NITRIDE THROUGH ISOSTATIC PRESSING OF A SILICON NITRID POWDER FORMATED BODY WITH A GAS PRESSURE MEDIUM
SE413400B (en) * 1978-08-29 1980-05-27 Asea Ab SET TO MAKE A FORMULA OF SILICON NITRID THROUGH ISOSTATIC PRESSURE OF A SILICON NITRID POWDER FORMATED BODY WITH A GAS SHAPE PRESSURE MEDIUM IN A PRESSURE CIRCUIT FOR A SINCERATION OF SILICON NITRID ...
SE425360B (en) * 1979-05-07 1982-09-27 Asea Ab SET TO ISSTATIC PRESSURE OF POWDER FOR THE PREPARATION OF FORMAL OF CERAMIC OR METALLIC MATERIAL
DE3009240A1 (en) * 1980-03-11 1981-10-15 Elektroschmelzwerk Kempten GmbH, 8000 München METHOD FOR PRODUCING PRACTICALLY PORE-FREE POLYCRYSTALLINE MOLDED BODIES BY ISOSTATIC HOT PRESSING
SE430481B (en) * 1982-03-29 1983-11-21 Asea Ab SET TO JOIN PARTS OF SOLID MATERIAL THROUGH HOT ISOSTATIC PRESSURE
JPS59198690A (en) * 1983-04-25 1984-11-10 いすゞ自動車株式会社 Ceramic heater and method of producing same
SE456651B (en) * 1987-03-02 1988-10-24 Asea Cerama Ab PREPARED TO MAKE A PREFERRED SIZE OF IN A CAPSEL CONTAINED POWDER-SHEET MATERIAL THROUGH ISOSTATIC PRESSURE
JPH02279575A (en) * 1989-04-18 1990-11-15 Nkk Corp Production of sintered ceramic body having dense ceramic film
SE464620B (en) * 1989-09-26 1991-05-27 Asea Cerama Ab SET TO MAKE A PRINCIPLE OF CERAMICS THROUGH ISOSTATIC PRESSURE IN A GLASS ENVIRONMENT
CN112341207B (en) * 2020-11-20 2022-08-12 哈尔滨工业大学 A kind of silicon nitride-silicon oxynitride column hole composite ceramic material and preparation method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1533020A1 (en) * 1966-02-25 1970-03-05 Philips Patentverwaltung Method and furnace for isostatic hot pressing of pellets
SE348961C (en) * 1971-03-15 1982-08-30 Asea Ab PROCEDURE FOR PREPARING A SINTERED POWDER BODY
DE2349277A1 (en) * 1973-10-01 1975-04-24 Feldmuehle Anlagen Prod Silicon nitride components with high density - esp. turbine blades, made by injection moulding followed by isostatic pressing
GB1522705A (en) * 1974-11-11 1978-08-23 Asea Ab Method of manufacturing bodies of silicon nitride

Also Published As

Publication number Publication date
ZA77476B (en) 1977-12-28
AU507155B2 (en) 1980-02-07
AU2157477A (en) 1978-08-03
DE2702073C2 (en) 1983-12-08
GB1564851A (en) 1980-04-16
DE2702073A1 (en) 1977-08-04
SE396371B (en) 1977-09-19
FR2339582A1 (en) 1977-08-26
JPS5935870B2 (en) 1984-08-31
CA1091907A (en) 1980-12-23
SU651687A3 (en) 1979-03-05
FR2339582B1 (en) 1980-04-25
JPS5293699A (en) 1977-08-06
IT1192228B (en) 1988-03-31

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