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GB1373816A - Method of making ceramic hollow -ware articles from powdered material - Google Patents

Method of making ceramic hollow -ware articles from powdered material

Info

Publication number
GB1373816A
GB1373816A GB1913371A GB1913371A GB1373816A GB 1373816 A GB1373816 A GB 1373816A GB 1913371 A GB1913371 A GB 1913371A GB 1913371 A GB1913371 A GB 1913371A GB 1373816 A GB1373816 A GB 1373816A
Authority
GB
United Kingdom
Prior art keywords
mixture
crucible
vacuum
former
forming
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
GB1913371A
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.)
Advanced Materials Engineering Ltd
Original Assignee
Advanced Materials Engineering Ltd
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 Advanced Materials Engineering Ltd filed Critical Advanced Materials Engineering Ltd
Priority to GB1913371A priority Critical patent/GB1373816A/en
Publication of GB1373816A publication Critical patent/GB1373816A/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
    • 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
    • C04B35/626—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
    • C04B35/636—Polysaccharides or derivatives thereof
    • C04B35/6365—Cellulose or derivatives thereof

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)
  • Chemical Kinetics & Catalysis (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

1373816 Moulding hollow ceramic articles ADVANCED MATERIALS ENG Ltd 11 May 1972 [5 June 1971] 19133/71 Heading B5A [Also in Division C7] Hollow ceramic ware is made by vacuum forming, pressure forming, blow moulding or back extrusion of a mass of plastic green mixture to extend the mass and increase its surface area. The form is then sintered or reaction bonded in a reactive gas atmosphere. The plastic mixture may be made by mixing the ceramic powder such as Si either with an alginate-water-glycerol mixture, a methyl cellulose-latex-silicone mixture, benzophenone, toluidene or diphenylamine. The vacuum forming technique may be drape; plug assist; vacuum snap back; inverted drape; air forming with plug assist; or billow. A sheet of the green mixture may be formed by pouring or spraying the mixture on a glass former or by dipping the former in the mixture. The mixture is set on the former by spraying with methylated spirits containing 30% calcium nitrate. The sheet is then vacuum formed into a crucible. Alternatively a lump of the mixture of putty like consistency is back extruded to form a crucible. The Si crucible is then reaction bonded by heating in N 2 to form Si 3 N 4 .
GB1913371A 1972-05-11 1972-05-11 Method of making ceramic hollow -ware articles from powdered material Expired GB1373816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1913371A GB1373816A (en) 1972-05-11 1972-05-11 Method of making ceramic hollow -ware articles from powdered material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1913371A GB1373816A (en) 1972-05-11 1972-05-11 Method of making ceramic hollow -ware articles from powdered material

Publications (1)

Publication Number Publication Date
GB1373816A true GB1373816A (en) 1974-11-13

Family

ID=10124301

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1913371A Expired GB1373816A (en) 1972-05-11 1972-05-11 Method of making ceramic hollow -ware articles from powdered material

Country Status (1)

Country Link
GB (1) GB1373816A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162285A (en) * 1976-06-10 1979-07-24 Ngk Insulators, Ltd. Method for producing a ceramic honeycomb structure having no cracks
WO2012084832A1 (en) * 2010-12-22 2012-06-28 Steuler Solar Gmbh Crucibles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162285A (en) * 1976-06-10 1979-07-24 Ngk Insulators, Ltd. Method for producing a ceramic honeycomb structure having no cracks
WO2012084832A1 (en) * 2010-12-22 2012-06-28 Steuler Solar Gmbh Crucibles

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Legal Events

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