GB1465153A - Method of measuring the natural rate of densification of a sinterable material - Google Patents
Method of measuring the natural rate of densification of a sinterable materialInfo
- Publication number
- GB1465153A GB1465153A GB3825376A GB3825376A GB1465153A GB 1465153 A GB1465153 A GB 1465153A GB 3825376 A GB3825376 A GB 3825376A GB 3825376 A GB3825376 A GB 3825376A GB 1465153 A GB1465153 A GB 1465153A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- batch
- heating rate
- densification
- increased
- 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
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
- C04B35/64—Burning or sintering processes
- C04B35/645—Pressure 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
- C04B35/01—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
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)
- Compositions Of Oxide Ceramics (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Ceramic Products (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
1465153 Measuring the natural rate of densification BABCOCK & WILCOX CO 11 Feb 1974 [9 Nov 1973] 38253/76 Divided out of 1465152 Heading C1A A method of measuring the natural rate of densification of a sinterable material comprises a first stage of (A) applying a first pressure and a first heating rate to a first batch of a degassed sinterable material, to begin sintering of the batch, applying an increased second pressure and a second lower heating rate to the first batch to effect maximum densification, under the particular conditions of increased pressure and second lower heating rate applied, of the material, releasing the pressure and cooling the material prior to bloating and finally recording the density of the sintered first batch, a second stage of (B) applying the first physical pressure and the first heating rate to a second batch of the degassed sinterable material, applying an increased third pressure and a third lower heating rate to the batch to effect maximum densiflcation, under the particular conditions of increased pressure and the third lower heating rate applied, of the material, releasing the pressure and cooling the material prior to bloating and finally recording the density of the sintered second batch and in subsequent stages if necessary the same procedure is employed but the value of the increased physical pressure and of the lower heating rate in the second part of the procedure is altered, to identify which of the densities of the sintered batches is closest to the theoretical maximum density of the material, thereby to approximately identify the natural rate of densification of the material. The use of the method is described in connection with the production of alumina (see also Specification 1,430,144).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US41448373A | 1973-11-09 | 1973-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1465153A true GB1465153A (en) | 1977-02-23 |
Family
ID=23641643
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB607574A Expired GB1465152A (en) | 1973-11-09 | 1974-02-11 | Method of producing a refractory material and material produced by such a method |
| GB3825376A Expired GB1465153A (en) | 1973-11-09 | 1974-02-11 | Method of measuring the natural rate of densification of a sinterable material |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB607574A Expired GB1465152A (en) | 1973-11-09 | 1974-02-11 | Method of producing a refractory material and material produced by such a method |
Country Status (18)
| Country | Link |
|---|---|
| JP (3) | JPS5079511A (en) |
| AU (1) | AU473589B2 (en) |
| BE (1) | BE811721A (en) |
| CA (1) | CA1051040A (en) |
| CH (4) | CH612408A5 (en) |
| DE (1) | DE2432865C2 (en) |
| DK (1) | DK107574A (en) |
| ES (3) | ES423769A1 (en) |
| FR (1) | FR2250723B1 (en) |
| GB (2) | GB1465152A (en) |
| IL (3) | IL44318A (en) |
| IT (1) | IT1009227B (en) |
| LU (1) | LU69507A1 (en) |
| NL (1) | NL178587C (en) |
| NO (1) | NO145094C (en) |
| PH (4) | PH13208A (en) |
| SE (2) | SE413399B (en) |
| ZA (1) | ZA741067B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5616110B2 (en) * | 1974-02-08 | 1981-04-14 | ||
| JPS531605A (en) * | 1976-06-28 | 1978-01-09 | Kobe Steel Ltd | Structure of refractory lining of treating vessel and trouch for molten iron |
| JPS5483408A (en) * | 1977-12-15 | 1979-07-03 | Otani Denki Kk | Tape recorder |
| JPS5616663A (en) * | 1979-07-17 | 1981-02-17 | Teikoku Piston Ring Co Ltd | Member having formed cavitation resistant sprayed coat |
| DE602006017457D1 (en) * | 2005-02-21 | 2010-11-25 | Brother Ind Ltd | Method for producing a piezoelectric actuator |
| CN112626367B (en) * | 2021-01-06 | 2022-01-11 | 山东省科学院新材料研究所 | Preparation method of nano alumina particle reinforced aluminum-copper alloy composite material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3343915A (en) * | 1964-10-30 | 1967-09-26 | Ronald C Rossi | Densification of refractory compounds |
| US3377176A (en) * | 1964-12-04 | 1968-04-09 | Coors Porcelain Co | Alumina ceramic |
| US3413392A (en) * | 1966-10-17 | 1968-11-26 | Du Pont | Hot pressing process |
| US3702881A (en) * | 1970-06-08 | 1972-11-14 | Canadian Patents Dev | Reactive hot pressing an oxide through its polymorphic phase change |
| US3702704A (en) * | 1970-12-21 | 1972-11-14 | Exxon Research Engineering Co | Noncontacting seal for centrifuge inlet |
-
1974
- 1974-02-08 AU AU65379/74A patent/AU473589B2/en not_active Expired
- 1974-02-11 GB GB607574A patent/GB1465152A/en not_active Expired
- 1974-02-11 GB GB3825376A patent/GB1465153A/en not_active Expired
- 1974-02-11 NL NLAANVRAGE7401808,A patent/NL178587C/en not_active IP Right Cessation
- 1974-02-12 NO NO740474A patent/NO145094C/en unknown
- 1974-02-19 ZA ZA00741067A patent/ZA741067B/en unknown
- 1974-02-25 CA CA193,440A patent/CA1051040A/en not_active Expired
- 1974-02-28 LU LU69507A patent/LU69507A1/xx unknown
- 1974-02-28 DK DK107574A patent/DK107574A/da not_active Application Discontinuation
- 1974-02-28 IL IL44318A patent/IL44318A/en unknown
- 1974-02-28 IL IL51108A patent/IL51108A/en unknown
- 1974-02-28 BE BE141517A patent/BE811721A/en not_active IP Right Cessation
- 1974-02-28 ES ES423769A patent/ES423769A1/en not_active Expired
- 1974-03-04 SE SE7402816A patent/SE413399B/en not_active IP Right Cessation
- 1974-03-07 IT IT67621/74A patent/IT1009227B/en active
- 1974-03-07 JP JP49025813A patent/JPS5079511A/ja active Pending
- 1974-05-31 JP JP49061006A patent/JPS5079509A/ja active Pending
- 1974-07-09 DE DE2432865A patent/DE2432865C2/en not_active Expired
- 1974-10-31 FR FR7436377A patent/FR2250723B1/fr not_active Expired
- 1974-11-08 CH CH1498474A patent/CH612408A5/en not_active IP Right Cessation
- 1974-11-08 CH CH606877A patent/CH608473A5/xx not_active IP Right Cessation
- 1974-11-08 CH CH606977A patent/CH607024A5/xx not_active IP Right Cessation
-
1976
- 1976-04-06 PH PH18293A patent/PH13208A/en unknown
- 1976-04-06 PH PH18292A patent/PH11495A/en unknown
- 1976-04-06 PH PH18294A patent/PH13151A/en unknown
- 1976-04-06 PH PH18295A patent/PH12262A/en unknown
- 1976-06-30 ES ES449386A patent/ES449386A1/en not_active Expired
- 1976-06-30 ES ES449398A patent/ES449398A1/en not_active Expired
- 1976-12-14 IL IL51108A patent/IL51108A0/en unknown
-
1977
- 1977-05-16 CH CH607077A patent/CH625194A5/en not_active IP Right Cessation
- 1977-11-21 SE SE7713109A patent/SE7713109L/en not_active Application Discontinuation
- 1977-12-23 JP JP52154570A patent/JPS5817144B2/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |