GB1452578A - Process for making a cilicon nitride article - Google Patents

Process for making a cilicon nitride article

Info

Publication number
GB1452578A
GB1452578A GB4620874A GB4620874A GB1452578A GB 1452578 A GB1452578 A GB 1452578A GB 4620874 A GB4620874 A GB 4620874A GB 4620874 A GB4620874 A GB 4620874A GB 1452578 A GB1452578 A GB 1452578A
Authority
GB
United Kingdom
Prior art keywords
article
suspension
cilicon
making
per cent
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
GB4620874A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1452578A publication Critical patent/GB1452578A/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

Landscapes

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

Abstract

1452578 Slip casting FORD MOTOR CO Ltd 25 Oct 1974 [14 Nov 1973] 46208/74 Heading B5A [Also in Division C1] Silicon nitride articles having a selected density from 2À1 to 3À18 g./c.c. are prepared by dispersing 70 to 80 wt. per cent of Si powder having a particle size distribution falling within the area bounded by the curves in the figure with 30 to 20 wt. per cent of a vehicle, which includes a suspending agent, adjusting the pH of the suspension to yield the desired suspension viscosity which is inversely proportional to the required density of the Si 3 N 4 article, slip casting the Si powder suspension and nitriding the Si article. The vehicle used may be water and the suspending agent may be monoethanolamine.
GB4620874A 1973-11-14 1974-10-25 Process for making a cilicon nitride article Expired GB1452578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41589873A 1973-11-14 1973-11-14

Publications (1)

Publication Number Publication Date
GB1452578A true GB1452578A (en) 1976-10-13

Family

ID=23647681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4620874A Expired GB1452578A (en) 1973-11-14 1974-10-25 Process for making a cilicon nitride article

Country Status (3)

Country Link
JP (1) JPS5080304A (en)
DE (1) DE2454147A1 (en)
GB (1) GB1452578A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5164138A (en) * 1982-09-30 1992-11-17 Heliotronic Forschungs- Und Entwicklungsgesellschaft Fur Solarzellen-Grundstoffe Mbh Material comprising silicon and process for its manufacture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102430A1 (en) * 1991-01-28 1992-07-30 Agrob Ag Porous ceramic or metallic bodies of high, controlled pore content - mfd. by sedimentation of a solid-liquid dispersion, followed by calcination

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5164138A (en) * 1982-09-30 1992-11-17 Heliotronic Forschungs- Und Entwicklungsgesellschaft Fur Solarzellen-Grundstoffe Mbh Material comprising silicon and process for its manufacture

Also Published As

Publication number Publication date
JPS5080304A (en) 1975-06-30
DE2454147A1 (en) 1975-05-15

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee