WO1996004219A3 - Manufacture of ceramic articles - Google Patents

Manufacture of ceramic articles Download PDF

Info

Publication number
WO1996004219A3
WO1996004219A3 PCT/GB1995/001841 GB9501841W WO9604219A3 WO 1996004219 A3 WO1996004219 A3 WO 1996004219A3 GB 9501841 W GB9501841 W GB 9501841W WO 9604219 A3 WO9604219 A3 WO 9604219A3
Authority
WO
WIPO (PCT)
Prior art keywords
manufacture
ceramic articles
ceramic
coagulating
suspension
Prior art date
Application number
PCT/GB1995/001841
Other languages
French (fr)
Other versions
WO1996004219A2 (en
Inventor
Rodney Martin Sambrook
Jon Binner
Jason Davies
Andrew Mark Mcdermott
Original Assignee
Dytech Corp Ltd
Rodney Martin Sambrook
Jon Binner
Jason Davies
Andrew Mark Mcdermott
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 Dytech Corp Ltd, Rodney Martin Sambrook, Jon Binner, Jason Davies, Andrew Mark Mcdermott filed Critical Dytech Corp Ltd
Priority to AU31838/95A priority Critical patent/AU3183895A/en
Priority to DE69521513T priority patent/DE69521513T2/en
Priority to EP95927838A priority patent/EP0773913B1/en
Publication of WO1996004219A2 publication Critical patent/WO1996004219A2/en
Publication of WO1996004219A3 publication Critical patent/WO1996004219A3/en
Priority to US08/776,629 priority patent/US5922272A/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
    • C04B35/622—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
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63424—Polyacrylates; Polymethacrylates
    • 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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/111—Fine ceramics
    • 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
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
    • 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
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6021—Extrusion moulding
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/786—Micrometer sized grains, i.e. from 1 to 100 micron
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Abstract

A mouldable ceramic composition is made by forming the suspension of electrically charged ceramic particles and then coagulating.
PCT/GB1995/001841 1994-08-02 1995-08-02 Manufacture of ceramic articles WO1996004219A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU31838/95A AU3183895A (en) 1994-08-02 1995-08-02 Manufacture of ceramic articles
DE69521513T DE69521513T2 (en) 1994-08-02 1995-08-02 MANUFACTURE OF CERAMIC ITEMS
EP95927838A EP0773913B1 (en) 1994-08-02 1995-08-02 Manufacture of ceramic articles
US08/776,629 US5922272A (en) 1994-08-02 1997-07-23 Manufacture of ceramic articles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9415562.9 1994-08-02
GB9415562A GB9415562D0 (en) 1994-08-02 1994-08-02 Ceramic articles

Publications (2)

Publication Number Publication Date
WO1996004219A2 WO1996004219A2 (en) 1996-02-15
WO1996004219A3 true WO1996004219A3 (en) 1996-04-18

Family

ID=10759257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/001841 WO1996004219A2 (en) 1994-08-02 1995-08-02 Manufacture of ceramic articles

Country Status (6)

Country Link
US (1) US5922272A (en)
EP (1) EP0773913B1 (en)
AU (1) AU3183895A (en)
DE (1) DE69521513T2 (en)
GB (2) GB9415562D0 (en)
WO (1) WO1996004219A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8741209B2 (en) * 2007-11-30 2014-06-03 Corning Incorporated Stabilizers for ceramic body extrusion
US20090218711A1 (en) * 2008-02-28 2009-09-03 David Dasher Method of increasing ceramic paste stiffening/gelation temperature by using a salt and precursor batch
US20090274866A1 (en) * 2008-04-30 2009-11-05 Michelle Dawn Fabian Ceramic article and method for making it
US20100117272A1 (en) * 2008-11-13 2010-05-13 Derosa Michael Edward Method Of Increasing Ceramic Paste Stiffening/Gelation Temperature By Using Organic Additive Urea
US10494291B2 (en) * 2014-10-23 2019-12-03 Corning Incorporated Hygroscopic additives for silica soot compacts and methods for forming optical quality glass
WO2016138052A1 (en) 2015-02-27 2016-09-01 Corning Incorporated Methods for strengthening silica soot compacts with nanoparticles

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692690A (en) * 1970-05-27 1972-09-19 Ncr Co Encapsulation process by complex coacervation using polymers and capsule product therefrom
JPS4946046A (en) * 1971-10-01 1974-05-02
US4799601A (en) * 1982-04-26 1989-01-24 Toshiba Ceramics Co., Ltd. Translucent alumina ceramic tube and a process for making same
JPH02141455A (en) * 1988-11-22 1990-05-30 Toyota Motor Corp Casting and molding method
EP0415646A1 (en) * 1989-08-28 1991-03-06 AT&T Corp. Preparing superconducting ceramic materials
US5188780A (en) * 1991-04-18 1993-02-23 Regents Of The University Of California Method for preparation of dense ceramic products
GB2264939A (en) * 1992-03-10 1993-09-15 Veitscher Magnesitwerke Ag Coating an oxide powder by spray-drying

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2033147B (en) * 1978-09-21 1982-12-15 Tokyo Shibaura Electric Co Method for production of composite piezoelectric material
JPS593066A (en) * 1982-06-29 1984-01-09 日本碍子株式会社 Manufacture of ceramic thin tube
US4627966A (en) * 1984-03-19 1986-12-09 General Motors Corporation Formation of fine particle sinterable ceramic powders
US4624808A (en) * 1984-05-15 1986-11-25 Rockwell International Corporation Forming a ceramic by flocculation and centrifugal casting
US4904411A (en) * 1986-04-25 1990-02-27 Ceramics Process Systems Corp. Highly loaded, pourable suspensions of particulate materials
DE3725138A1 (en) * 1987-07-29 1989-02-09 Basf Ag METHOD FOR PRODUCING CERAMIC MOLDED PARTS
DE68908162T2 (en) * 1989-04-21 1993-12-16 Nhk Spring Co Ltd Process for the production of ceramic products, in particular ceramic springs.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692690A (en) * 1970-05-27 1972-09-19 Ncr Co Encapsulation process by complex coacervation using polymers and capsule product therefrom
JPS4946046A (en) * 1971-10-01 1974-05-02
US4799601A (en) * 1982-04-26 1989-01-24 Toshiba Ceramics Co., Ltd. Translucent alumina ceramic tube and a process for making same
JPH02141455A (en) * 1988-11-22 1990-05-30 Toyota Motor Corp Casting and molding method
EP0415646A1 (en) * 1989-08-28 1991-03-06 AT&T Corp. Preparing superconducting ceramic materials
US5188780A (en) * 1991-04-18 1993-02-23 Regents Of The University Of California Method for preparation of dense ceramic products
GB2264939A (en) * 1992-03-10 1993-09-15 Veitscher Magnesitwerke Ag Coating an oxide powder by spray-drying

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DANIEL J. SHANEFIELD: "Organic Additives and Ceramic Processing", 11 May 1995, KLUWER ACADEMIC PUBLISHERS, BOSTON,USA, 214430 *
DATABASE WPI Week 7502, Derwent World Patents Index; AN 75-02860w *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 382 (C - 0749) 17 August 1990 (1990-08-17) *

Also Published As

Publication number Publication date
GB9415562D0 (en) 1994-09-21
US5922272A (en) 1999-07-13
WO1996004219A2 (en) 1996-02-15
AU3183895A (en) 1996-03-04
EP0773913A2 (en) 1997-05-21
DE69521513D1 (en) 2001-08-02
DE69521513T2 (en) 2002-05-16
EP0773913B1 (en) 2001-06-27
GB2291830A (en) 1996-02-07
GB2291830B (en) 1998-10-21
GB9515814D0 (en) 1995-10-04

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