GB1528160A - Silicon nitride based components - Google Patents

Silicon nitride based components

Info

Publication number
GB1528160A
GB1528160A GB33198/75A GB3319875A GB1528160A GB 1528160 A GB1528160 A GB 1528160A GB 33198/75 A GB33198/75 A GB 33198/75A GB 3319875 A GB3319875 A GB 3319875A GB 1528160 A GB1528160 A GB 1528160A
Authority
GB
United Kingdom
Prior art keywords
thermal conductivity
density
layer
powder metallurgy
silicon nitride
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
GB33198/75A
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB33198/75A priority Critical patent/GB1528160A/en
Priority to JP51094428A priority patent/JPS5221515A/en
Priority to FR7624225A priority patent/FR2320424A1/en
Priority to SE7608837A priority patent/SE7608837L/en
Priority to DE19762635799 priority patent/DE2635799A1/en
Publication of GB1528160A publication Critical patent/GB1528160A/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
    • 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
    • C04B35/591—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 reaction sintering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/02—Surface coverings of combustion-gas-swept parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Products (AREA)

Abstract

1528160 Silicon nitride based components NATIONAL RESEARCH DEVELOPMENT CORP 3 Aug 1976 [8 Aug 1975] 33198/75 Heading C7D A Si 3 N 4 based internal combustion engine component comprises a low thermal conductivity body with at least one adherent region of a higher thermal conductivity. The component may be made by forming a low density Si preform as by powder metallurgy or flame spraying then coating with a higher density Si layer by powder metallurgy or flame spraying and then nitriding to form a Si 3 N 4 body with a density up to 2À2 mg/m<SP>3</SP> and a Si 3 N 4 layer with a density # 2À6 mg/m<SP>3</SP>. Alternattively the nitriding may be effected separately, or the body may be preformed Si 3 N 4 . Powder metallurgy techniques used may be slip casting, injection moulding and isostatic compaction and the layer of higher thermal conductivity may be other than Si or Si 3 N 4 e.g. SiC. The Si 3 N 4 body may also be impregnated with a higher thermal conductivity material.
GB33198/75A 1975-08-08 1975-08-08 Silicon nitride based components Expired GB1528160A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB33198/75A GB1528160A (en) 1975-08-08 1975-08-08 Silicon nitride based components
JP51094428A JPS5221515A (en) 1975-08-08 1976-08-06 Member utilizing silicon nitride as base material and method of forming same
FR7624225A FR2320424A1 (en) 1975-08-08 1976-08-06 INTERNAL COMBUSTION ENGINE PART MADE FROM SILICON NITRIDE AND ITS PRODUCTION PROCESS
SE7608837A SE7608837L (en) 1975-08-08 1976-08-06 Silicon nitride-based flasks
DE19762635799 DE2635799A1 (en) 1975-08-08 1976-08-09 COMBUSTION ENGINE COMPONENT ON A SILICON NITRIDE BASE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33198/75A GB1528160A (en) 1975-08-08 1975-08-08 Silicon nitride based components

Publications (1)

Publication Number Publication Date
GB1528160A true GB1528160A (en) 1978-10-11

Family

ID=10349850

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33198/75A Expired GB1528160A (en) 1975-08-08 1975-08-08 Silicon nitride based components

Country Status (5)

Country Link
JP (1) JPS5221515A (en)
DE (1) DE2635799A1 (en)
FR (1) FR2320424A1 (en)
GB (1) GB1528160A (en)
SE (1) SE7608837L (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466603A1 (en) * 1990-07-13 1992-01-15 Societe Europeenne De Propulsion Cooled refractory structures and method of manufacturing them
US5525556A (en) * 1994-04-14 1996-06-11 The Dow Chemical Company Silicon nitride/silicon carbide composite powders
FR2921112A1 (en) * 2007-09-19 2009-03-20 Peugeot Citroen Automobiles Sa THERMAL MOTOR AND METHOD FOR CONTROLLING THE THERMAL CONDUCTIVE OF THE WALLS OF THE COMBUSTION CHAMBER

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408490A1 (en) * 1984-03-08 1985-09-12 Willibald 8000 München Hiemer Cylinder block of a water-cooled reciprocating piston internal combustion engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2113629A (en) * 1934-11-05 1938-04-12 Gen Motors Corp Combustion chamber for internal combustion engines
DE943917C (en) * 1944-09-10 1956-06-01 Dr Joseph Dornauf Piston head covered with a heat-insulating layer
FR1573863A (en) * 1966-11-30 1969-07-11
CA1028130A (en) * 1973-12-20 1978-03-21 Andre Ezis Method of making an article of silicon nitride

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466603A1 (en) * 1990-07-13 1992-01-15 Societe Europeenne De Propulsion Cooled refractory structures and method of manufacturing them
FR2664585A1 (en) * 1990-07-13 1992-01-17 Europ Propulsion COOLED REFRACTORY STRUCTURES AND METHOD FOR THEIR MANUFACTURE.
US5174368A (en) * 1990-07-13 1992-12-29 Societe Europeenne De Propulsion Cooled refractory structure and manufacturing process therefor
US5525556A (en) * 1994-04-14 1996-06-11 The Dow Chemical Company Silicon nitride/silicon carbide composite powders
FR2921112A1 (en) * 2007-09-19 2009-03-20 Peugeot Citroen Automobiles Sa THERMAL MOTOR AND METHOD FOR CONTROLLING THE THERMAL CONDUCTIVE OF THE WALLS OF THE COMBUSTION CHAMBER
EP2039813A1 (en) * 2007-09-19 2009-03-25 Peugeot Citroën Automobiles Sa Thermal engine and procedure for controlling the thermal conductivity of the surface of the combustion chamber

Also Published As

Publication number Publication date
FR2320424B1 (en) 1982-05-21
DE2635799A1 (en) 1977-02-17
JPS5221515A (en) 1977-02-18
FR2320424A1 (en) 1977-03-04
SE7608837L (en) 1977-02-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee