GB1304291A - - Google Patents

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Publication number
GB1304291A
GB1304291A GB1304291DA GB1304291A GB 1304291 A GB1304291 A GB 1304291A GB 1304291D A GB1304291D A GB 1304291DA GB 1304291 A GB1304291 A GB 1304291A
Authority
GB
United Kingdom
Prior art keywords
communicating
bodies
porosity
isostatic
gas
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
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 filed Critical
Publication of GB1304291A publication Critical patent/GB1304291A/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

1304291 Isostatic hot pressing CORNING GLASS WORKS 9 Sept 1970 43079/70 Heading C7D [Also in Division C1] Shaped bodies of sinterable particulate material are densified by an initial firing in vacuo or in a gas which is diffusible or soluble with respect to the material of the body, e.g. H 2 to a state in which it is substantially free of inter-connecting porosity (communicating between points spaced on the surface of the body) while still possessing closed porosity (not communicating with the surface of the body), followed by a further firing under the isostatic pressing action of an inert gas which is incapable of diffusing into or permeating the body e.g. helium, argon and nitrogen, at a pressure of at least 1000 psi in immediate contact with the body. Bodies may be formed of refractory metals, refractory metal oxides, graphite, carbides or cermets and an example describes the treatment of alumina.
GB1304291D 1970-09-09 1970-09-09 Expired GB1304291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4307970 1970-09-09

Publications (1)

Publication Number Publication Date
GB1304291A true GB1304291A (en) 1973-01-24

Family

ID=10427240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1304291D Expired GB1304291A (en) 1970-09-09 1970-09-09

Country Status (1)

Country Link
GB (1) GB1304291A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276096A (en) 1977-04-22 1981-06-30 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Method for producing hard metal bodies of increased wear resistance
US4541975A (en) * 1981-06-17 1985-09-17 Kabushiki Kaisha Kobe Seiko Sho Method for producing high strength sintered silicon carbide
WO1986004990A1 (en) * 1985-02-22 1986-08-28 University Patents, Inc. Electrochemical sensors and methods for their manufacture and use
US4786374A (en) * 1985-02-22 1988-11-22 University Patents, Inc. Electro-chemical sensors and methods for their manufacture and use
US5445776A (en) * 1980-10-20 1995-08-29 Kabushiki Kaisha Kobe Seiko Sho Method for producing high density sintered silicon nitride (Si3 N.sub.4
US5603876A (en) * 1980-10-20 1997-02-18 Kabushiki Kaisha Kobe Seiko Sho Method for producing high density sintered silicon nitride (SI3 N.sub.4

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276096A (en) 1977-04-22 1981-06-30 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Method for producing hard metal bodies of increased wear resistance
US5445776A (en) * 1980-10-20 1995-08-29 Kabushiki Kaisha Kobe Seiko Sho Method for producing high density sintered silicon nitride (Si3 N.sub.4
US5603876A (en) * 1980-10-20 1997-02-18 Kabushiki Kaisha Kobe Seiko Sho Method for producing high density sintered silicon nitride (SI3 N.sub.4
US4541975A (en) * 1981-06-17 1985-09-17 Kabushiki Kaisha Kobe Seiko Sho Method for producing high strength sintered silicon carbide
WO1986004990A1 (en) * 1985-02-22 1986-08-28 University Patents, Inc. Electrochemical sensors and methods for their manufacture and use
US4627892A (en) * 1985-02-22 1986-12-09 University Patents, Inc. Electrochemical sensors and methods for their manufacture and use
US4786374A (en) * 1985-02-22 1988-11-22 University Patents, Inc. Electro-chemical sensors and methods for their manufacture and use

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees