IE31849L - Ceramics. - Google Patents
Ceramics.Info
- Publication number
- IE31849L IE31849L IE680247A IE24768A IE31849L IE 31849 L IE31849 L IE 31849L IE 680247 A IE680247 A IE 680247A IE 24768 A IE24768 A IE 24768A IE 31849 L IE31849 L IE 31849L
- Authority
- IE
- Ireland
- Prior art keywords
- alumina
- layer
- solvent
- mixture
- fired
- Prior art date
Links
- 239000000919 ceramic Substances 0.000 title abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 10
- 239000000203 mixture Substances 0.000 abstract 7
- 239000002904 solvent Substances 0.000 abstract 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 2
- 238000010304 firing Methods 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000004014 plasticizer Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 241000273929 Brevoortia patronus Species 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 235000019441 ethanol Nutrition 0.000 abstract 1
- 239000003966 growth inhibitor Substances 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 abstract 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 239000000454 talc Substances 0.000 abstract 1
- 229910052623 talc Inorganic materials 0.000 abstract 1
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
- C04B35/6342—Polyvinylacetals, e.g. polyvinylbutyral [PVB]
-
- 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
- C04B35/63—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4803—Insulating or insulated parts, e.g. mountings, containers, diamond heatsinks
- H01L21/4807—Ceramic parts
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N97/00—Electric solid-state thin-film or thick-film devices, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
1,217,042. Alumina. WESTERN ELECTRIC CO. Inc. 29 Feb., 1968 [27 April, 1967], No. 9857/68. Heading C1A. Alumina in the form of a thin layer is produced by first forming an alumina slip by intimately mixing together a size graded alumina, i.e. an alumina having a broad particle size range, this alumina having a minimum surface area of 12 m<SP>2</SP>/gm, a solvent, i.e. a liquid preferably organic which is volatile at temperatures only slightly elevated above the ambient, a binder, i.e. a material which retains the alumina in its cast shape after the solvent has evaporated and which is soluble in the solvent, casting the mixture on to a surface to form a layer and removing the solvent to give an unfired layer. The layer may be fired to give a ceramic product. Preferably the alumina used has a maximum surface area of 16 m<SP>2</SP>/gm. and the layer is fired for a period of time ranging from 15 mins. to 3 hours at a temperature ranging from 1425- 1550‹ C. The sovlent may be eliminated from the prefired layer by drying for several hours at room temperature. A plasticizer which is compatible with the binder may be added to the mixture and an exemplified combination is a polyvinyl butyral resin and a plasticizer consisting of a mixture of glycol and a phthalate. The solvent may be an azeotropicmixture of two organic liquids one of which is soluble in water; e.g. a mixture of ethyl alcohol and trichlorethylene. The mixture may also include a grain growth inhibitor, e.g. talc, and the alumina required for the composition may be obtained by taking an alumina having a surface area of less than 12 m<SP>2</SP>/gm. and milling it in the presence of at least a portion of the solvent and a deflocculating agent, e.g. menhaden oil. The surface on which the composition is cast may be cellulose acetate, glycol-terphthalic acid polyester, a fluo-halocarbon film, or chromium plated stainless steel. The dried prefired layer may be cut into the desired shape or shapes before firing and during such firing the shapes may be weighted down by previously fired shapes to prevent warping. The fired product preferably has a maximum grain size of about 1 micron, zero water content, and a Centre Line Average finish on at least one surface of less than 3À5 micro inches.
[GB1217042A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63437067A | 1967-04-27 | 1967-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE31849L true IE31849L (en) | 1968-10-27 |
| IE31849B1 IE31849B1 (en) | 1973-01-10 |
Family
ID=24543499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE247/68A IE31849B1 (en) | 1967-04-27 | 1968-03-04 | Improvements in or relating to ceramics |
Country Status (10)
| Country | Link |
|---|---|
| BE (1) | BE714234A (en) |
| CH (1) | CH515784A (en) |
| DE (1) | DE1771216B1 (en) |
| ES (1) | ES353630A1 (en) |
| FR (1) | FR1564260A (en) |
| GB (1) | GB1217042A (en) |
| IE (1) | IE31849B1 (en) |
| IL (1) | IL29566A (en) |
| NL (1) | NL6805969A (en) |
| SE (1) | SE339650B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1425934A (en) * | 1972-03-15 | 1976-02-25 | Ici Ltd | Alumina |
| JPS6034510B2 (en) * | 1976-06-10 | 1985-08-09 | 日本碍子株式会社 | Extrusion manufacturing method of ceramic honeycomb structure |
| DE2727364A1 (en) * | 1977-06-16 | 1979-01-04 | Siemens Ag | METHOD FOR MANUFACTURING CERAMIC SUBSTRATES |
| FR2568722B1 (en) * | 1984-08-03 | 1987-10-23 | Thomson Csf | DIELECTRIC CERAMIC SUBSTRATE AND PROCESS FOR OBTAINING |
| FR2614421B1 (en) * | 1987-04-24 | 1989-09-15 | Thomson Csf | METHOD FOR MANUFACTURING A SUBSTRATE WITH HIGH RESISTIVITY AND APPLICATION TO A GAS ANALYSIS PROBE |
| DE3834907C2 (en) * | 1987-10-15 | 1994-11-24 | Hoechst Ceram Tec Ag | Alumina tubes and process for their manufacture |
-
1968
- 1968-02-29 GB GB9857/68A patent/GB1217042A/en not_active Expired
- 1968-03-04 IL IL29566A patent/IL29566A/en unknown
- 1968-03-04 IE IE247/68A patent/IE31849B1/en unknown
- 1968-04-23 DE DE19681771216 patent/DE1771216B1/en not_active Withdrawn
- 1968-04-25 BE BE714234D patent/BE714234A/xx unknown
- 1968-04-26 FR FR1564260D patent/FR1564260A/fr not_active Expired
- 1968-04-26 NL NL6805969A patent/NL6805969A/xx unknown
- 1968-04-26 SE SE05631/68A patent/SE339650B/xx unknown
- 1968-04-27 ES ES353630A patent/ES353630A1/en not_active Expired
- 1968-04-29 CH CH633768A patent/CH515784A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ES353630A1 (en) | 1969-10-16 |
| IL29566A (en) | 1971-11-29 |
| NL6805969A (en) | 1968-10-28 |
| CH515784A (en) | 1971-11-30 |
| SE339650B (en) | 1971-10-11 |
| FR1564260A (en) | 1969-04-18 |
| GB1217042A (en) | 1970-12-23 |
| IE31849B1 (en) | 1973-01-10 |
| DE1771216B1 (en) | 1972-04-27 |
| BE714234A (en) | 1968-09-16 |
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