IE37571B1 - Ceramic materials and methods of producing such materials - Google Patents
Ceramic materials and methods of producing such materialsInfo
- Publication number
- IE37571B1 IE37571B1 IE668/73A IE66873A IE37571B1 IE 37571 B1 IE37571 B1 IE 37571B1 IE 668/73 A IE668/73 A IE 668/73A IE 66873 A IE66873 A IE 66873A IE 37571 B1 IE37571 B1 IE 37571B1
- Authority
- IE
- Ireland
- Prior art keywords
- powder
- temperature
- onset
- shrinkage
- ceramic
- Prior art date
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
- C04B33/00—Clay-wares
- C04B33/32—Burning methods
- C04B33/326—Burning methods under pressure
-
- 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
- C04B33/00—Clay-wares
- C04B33/32—Burning methods
-
- 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
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/42—Selection of substances for use as reactor fuel
- G21C3/58—Solid reactor fuel Pellets made of fissile material
- G21C3/62—Ceramic fuel
- G21C3/623—Oxide fuels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Powder Metallurgy (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
1430144 Ceramic material BABCOCK & WILCOX CO 19 April 1973 [12 May 1972] 19159/73 Heading C1A A ceramic material comprises grains of sintered aluminium oxide having grains with a size distribution observed on a fracture surface with a scanning electron microscope at 10,000 magnifications as follows: less than 0 3 = 0%, between 0 3 and 0 5 = 25%, between 0 3 and 0 7 = 54%, between 0 3 and 0 9 = 80% and between 0 3 and 1 5 = 100%. A suitable method of converting a sinterable powder into a fine grain ceramic metal oxide of the above type comprises a first step of heating the powder to a temperature that produces an onset of powder shrinkage, a step of applying a maximum process physical pressure to the powder with the onset of shrinkage, a step of raising the temperature of the powder, with the onset of shrinkage, at a lower rate than the first heating step, to a temperature of more than 800 C. and holding the pressure and attained temperature for more than two minutes. It is preferred to heat the powder in the first heating step to more than 400 C. at a rate of at least 400 C. per minute and to use a maximum hot process pressure of 2000-6000 lbs./sq. inch. The preparation of Al 2 O 3 and UO 2 ceramic materials are exemplified.
[GB1430144A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US25268872A | 1972-05-12 | 1972-05-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE37571L IE37571L (en) | 1973-11-12 |
| IE37571B1 true IE37571B1 (en) | 1977-08-17 |
Family
ID=22957096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE668/73A IE37571B1 (en) | 1972-05-12 | 1973-04-27 | Ceramic materials and methods of producing such materials |
Country Status (19)
| Country | Link |
|---|---|
| JP (2) | JPS5230002B2 (en) |
| AU (1) | AU473154B2 (en) |
| BE (1) | BE799419A (en) |
| BR (1) | BR7303466D0 (en) |
| CA (1) | CA1032562A (en) |
| CH (2) | CH587199A5 (en) |
| DE (1) | DE2322983A1 (en) |
| ES (1) | ES414686A1 (en) |
| FR (1) | FR2184659B1 (en) |
| GB (1) | GB1430144A (en) |
| IE (1) | IE37571B1 (en) |
| IL (1) | IL42147A (en) |
| IN (1) | IN140093B (en) |
| IT (1) | IT1055528B (en) |
| LU (1) | LU67578A1 (en) |
| NL (1) | NL7305510A (en) |
| NO (1) | NO136971C (en) |
| SE (1) | SE409988B (en) |
| ZA (1) | ZA732984B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941534U (en) * | 1982-09-08 | 1984-03-17 | ゼオン化成株式会社 | soundproof laminate |
| JP2867301B2 (en) * | 1991-02-28 | 1999-03-08 | 川崎製鉄株式会社 | Grinding wheel for billet |
-
1973
- 1973-04-19 GB GB1915973A patent/GB1430144A/en not_active Expired
- 1973-04-19 NL NL7305510A patent/NL7305510A/xx not_active Application Discontinuation
- 1973-04-24 CA CA170,052A patent/CA1032562A/en not_active Expired
- 1973-04-27 IE IE668/73A patent/IE37571B1/en unknown
- 1973-04-30 IL IL42147A patent/IL42147A/en unknown
- 1973-05-02 AU AU55096/73A patent/AU473154B2/en not_active Expired
- 1973-05-02 IN IN1027/CAL/73A patent/IN140093B/en unknown
- 1973-05-02 ZA ZA732984A patent/ZA732984B/en unknown
- 1973-05-08 DE DE2322983A patent/DE2322983A1/en active Pending
- 1973-05-09 FR FR7316645A patent/FR2184659B1/fr not_active Expired
- 1973-05-10 SE SE7306579A patent/SE409988B/en unknown
- 1973-05-10 LU LU67578A patent/LU67578A1/xx unknown
- 1973-05-11 JP JP48051786A patent/JPS5230002B2/ja not_active Expired
- 1973-05-11 CH CH1662875A patent/CH587199A5/xx not_active IP Right Cessation
- 1973-05-11 BE BE131017A patent/BE799419A/en not_active IP Right Cessation
- 1973-05-11 BR BR3466/73A patent/BR7303466D0/en unknown
- 1973-05-11 NO NO1967/73A patent/NO136971C/en unknown
- 1973-05-11 ES ES414686A patent/ES414686A1/en not_active Expired
- 1973-05-11 CH CH675373A patent/CH584170A5/xx not_active IP Right Cessation
- 1973-05-16 IT IT68411/73A patent/IT1055528B/en active
- 1973-08-10 JP JP8938173A patent/JPS545403B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IL42147A0 (en) | 1973-06-29 |
| NO136971B (en) | 1977-08-29 |
| JPS545403B2 (en) | 1979-03-16 |
| CA1032562A (en) | 1978-06-06 |
| IE37571L (en) | 1973-11-12 |
| GB1430144A (en) | 1976-03-31 |
| CH584170A5 (en) | 1977-01-31 |
| SE409988B (en) | 1979-09-17 |
| FR2184659B1 (en) | 1976-03-19 |
| ES414686A1 (en) | 1976-06-16 |
| DE2322983A1 (en) | 1974-07-04 |
| ZA732984B (en) | 1974-08-28 |
| AU473154B2 (en) | 1976-06-17 |
| JPS50151907A (en) | 1975-12-06 |
| AU5509673A (en) | 1974-11-07 |
| IN140093B (en) | 1976-09-11 |
| LU67578A1 (en) | 1973-07-26 |
| JPS4961212A (en) | 1974-06-13 |
| NO136971C (en) | 1977-12-07 |
| BE799419A (en) | 1973-11-12 |
| BR7303466D0 (en) | 1974-07-25 |
| CH587199A5 (en) | 1977-04-29 |
| IT1055528B (en) | 1982-01-11 |
| JPS5230002B2 (en) | 1977-08-05 |
| NL7305510A (en) | 1973-11-14 |
| IL42147A (en) | 1977-02-28 |
| FR2184659A1 (en) | 1973-12-28 |
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