GB1071184A - Improvements in the production of bonded granular objects - Google Patents
Improvements in the production of bonded granular objectsInfo
- Publication number
- GB1071184A GB1071184A GB2863864A GB2863864A GB1071184A GB 1071184 A GB1071184 A GB 1071184A GB 2863864 A GB2863864 A GB 2863864A GB 2863864 A GB2863864 A GB 2863864A GB 1071184 A GB1071184 A GB 1071184A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alumina
- weight
- oxide
- mesh screen
- metals
- 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
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- 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
- C04B35/5805—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 borides
- C04B35/58064—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 borides based on refractory borides
- C04B35/58078—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 borides based on refractory borides based on zirconium or hafnium borides
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- C—CHEMISTRY; METALLURGY
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- 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
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- C—CHEMISTRY; METALLURGY
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/5607—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 carbides or oxycarbides based on refractory metal carbides
- C04B35/5611—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 carbides or oxycarbides based on refractory metal carbides based on titanium carbides
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/563—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 carbides or oxycarbides based on boron carbide
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- C04B35/565—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 carbides or oxycarbides based on silicon carbide
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/58007—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 refractory metal nitrides
- C04B35/58014—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 refractory metal nitrides based on titanium nitrides, e.g. TiAlON
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- C—CHEMISTRY; METALLURGY
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/58007—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 refractory metal nitrides
- C04B35/58028—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 refractory metal nitrides based on zirconium or hafnium nitrides
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/5805—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 borides
- C04B35/58064—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 borides based on refractory borides
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- C—CHEMISTRY; METALLURGY
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- C04B35/5805—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 borides
- C04B35/58064—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 borides based on refractory borides
- C04B35/58071—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 borides based on refractory borides based on titanium borides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
Abstract
Bonded granular material is prepared by mixing 6-50% by weight of particles of aluminium, or an alloy containing a major proportion of Al, which can pass through an 80-mesh screen (U.S. Sieve series), with at least 0.02% (on the weight of the Al) of fluxing agent and alumina particles (at least 50% by weight of which pass through a 4 mesh screen and are retained on a 100 mesh screen), shaping into a porous body of porosity at least 20% after removal of volatile materials, firing the body in an oxidizing atmosphere, e.g. air, oxygen or a mixture of oxygen and inert gas, at 650-1700 DEG C. for a time sufficient to oxidize at least 40% by weight of Al, the rate of heating being controlled so that the temperature of the body never exceeds the ambient temperature by more than 100 DEG C. The mixture to be shaped may also contain a bonding agent, e.g. ethyl alcohol, ethylene glycol, acetone solutions of carboxy-methyl cellulose, rubber, gum arabic, polyvinyl alcohol and natural glue, which burn off in the firing process. The fluxing agent may be oxides of the alkali metals, the alkaline earth metals, V, Cr, Mo, W, Cu, Ag, Zn, Sb, Bi and precursors of these oxides, i.e. acetates, benzoates, bisulphates, bisulphites, bromates, nitrates, silicates, sulphates, sulphites, or thiosulphites of the metals. The shaped refractory resulting from this process comprises 30-89% by weight of alumina particles bonded by a porous in situ oxidized crystalline phase of alpha-alumina, a compound of alumina with at least one other oxide, or a solid solution of an oxide in alumina or in said compound formed between an oxide and alumina, the bonding phase containing at least 72% Al2O3 by analysis. Reference has been directed by the Comptroller to Specification 989,005.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US294266A US3296002A (en) | 1963-07-11 | 1963-07-11 | Refractory shapes |
US294238A US3244539A (en) | 1963-07-11 | 1963-07-11 | Bonded alumina refractory |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1071184A true GB1071184A (en) | 1967-06-07 |
Family
ID=26968417
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2863864A Expired GB1071184A (en) | 1963-07-11 | 1964-07-10 | Improvements in the production of bonded granular objects |
GB2863964A Expired GB1071185A (en) | 1963-07-11 | 1964-07-10 | Improvements relating to refractories |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2863964A Expired GB1071185A (en) | 1963-07-11 | 1964-07-10 | Improvements relating to refractories |
Country Status (3)
Country | Link |
---|---|
JP (2) | JPS4826363B1 (en) |
BE (1) | BE650167A (en) |
GB (2) | GB1071184A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3751682B2 (en) * | 1995-06-19 | 2006-03-01 | 日本特殊陶業株式会社 | Igniter plug |
DE19704910C2 (en) * | 1997-02-10 | 2000-07-06 | Bayer Ag | Liquid-phase sintered, electrically conductive and oxidation-resistant ceramic material, a process for its production and its use |
-
1964
- 1964-07-06 BE BE650167D patent/BE650167A/xx unknown
- 1964-07-10 GB GB2863864A patent/GB1071184A/en not_active Expired
- 1964-07-10 GB GB2863964A patent/GB1071185A/en not_active Expired
- 1964-07-11 JP JP39038728A patent/JPS4826363B1/ja active Pending
- 1964-07-11 JP JP39038729A patent/JPS4826364B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
BE650167A (en) | 1964-11-03 |
JPS4826364B1 (en) | 1973-08-09 |
JPS4826363B1 (en) | 1973-08-09 |
GB1071185A (en) | 1967-06-07 |
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