SU679126A3 - Способ изготовлени керамических изделий - Google Patents
Способ изготовлени керамических изделийInfo
- Publication number
- SU679126A3 SU679126A3 SU742029248A SU2029248A SU679126A3 SU 679126 A3 SU679126 A3 SU 679126A3 SU 742029248 A SU742029248 A SU 742029248A SU 2029248 A SU2029248 A SU 2029248A SU 679126 A3 SU679126 A3 SU 679126A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sintering
- powder
- oxides
- lithium fluoride
- temperature
- Prior art date
Links
Classifications
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- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- 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
- C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/057—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on calcium oxide
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- 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
- C04B35/08—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 beryllium oxide
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- 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
- C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
- C04B35/486—Fine ceramics
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- 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
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
-
- 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
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
- C04B35/505—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds based on yttrium oxide
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- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Powder Metallurgy (AREA)
Claims (1)
- вать смесь окислов берили , кальци циркони , гафни , лантана, иттри . Перед процессом спекани продукт может быть подвергнут вибрации в от ливочной форме. При спекании не тре буетс ставить форму под давление, так как данный способ обеспечивает получение отлитого, конечного продук та любой сложной формы. Обычно прои вод т спекание в нейтральной атсосф ре, однако нексторне окислы требуют обеспечени йосстановительнсй атмосферы . Пример. Гранулы (размером 44-100/) - 65 вес.% и порошок (размером 2r22j) - 35вес.% окиси алюмин смешанные с гуммиарабиком (который используетс как временное св зующее вещество и исчезает во врем спекани ) и с добавкой 1% фтористог лити плотно укладываетс в форму. Затем продукт в форме вьадерживаетс в течение 6 час при . Полученна керамика стабильна и хорошо выдерживает перепады температуры и воздействие расплавленного алюмини . Физические свойства состава, при товленного согласно Этому способу, с включением 1% фторида лити , следующие: -fПлотность , г/см 2,42 Пористость, %38 Коэффициент рас- 8-10 Ширени ,Са интервале от О до 800 Теплопроводность, -3 при 300 С вт/м Прочность при сжатии, измеренна при комнатной температуре, кг/см 900 Модуль Юнга, кг/см ; 1 5 10 Варьиру соотношени смеси гранул и мелкоизмельченного порошка, можно получать изол ционную керамику с различной пористостью, лучше приспособленную к вьвдерживанию амплитуды перепадов температуры в процессе эксплуатации . Формула изобретени Способ изготовлени керамических изделий, включающий смешение порошков окислов элементов ж и IV групп различного гранулометрического состава с добавкой порошка фтористого лити и последующее спекание, о тличающийс тем, что, с целью получени фасонных изделий, имеющих повышенную стойкость к тепловым ударам и агрессивному воздействию расплавленного металла, порошок фтористого лити .добавл ют в количестве от 0,75 до 2 вес.%, предпочтительно 1% от общего веса, и спекание ведут при температуре 850-1350°С. Источники информации,,при й1:ые во внимание при экспертизе 1. Патент Франции 2123607, кл. С 04 В 35/00, опубл. 1972. .
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7318172A FR2229663A1 (en) | 1973-05-18 | 1973-05-18 | Insulating ceramic having controlled porosity - prepd. by sinter process comprising final sintering without over-pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU679126A3 true SU679126A3 (ru) | 1979-08-05 |
Family
ID=9119579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU742029248A SU679126A3 (ru) | 1973-05-18 | 1974-05-17 | Способ изготовлени керамических изделий |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2229663A1 (ru) |
| SU (1) | SU679126A3 (ru) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4473654A (en) * | 1983-08-18 | 1984-09-25 | The J. E. Baker Company | Low temperature bonding of refractory aggregates and refractory products of improved cold strength |
| US4769352A (en) * | 1984-07-23 | 1988-09-06 | Norton Company | Refractory cement containing lithium fluoride flux |
| EP0739865A1 (fr) * | 1995-04-24 | 1996-10-30 | Asulab S.A. | Article à base de zircone fritté et procédé d'obtention d'un tel article |
-
1973
- 1973-05-18 FR FR7318172A patent/FR2229663A1/fr active Granted
-
1974
- 1974-05-17 SU SU742029248A patent/SU679126A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2229663A1 (en) | 1974-12-13 |
| FR2229663B1 (ru) | 1980-05-09 |
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