RU2018101291A - Прозрачный керамический материал в качестве компонента небьющихся оптичеких стекол - Google Patents

Прозрачный керамический материал в качестве компонента небьющихся оптичеких стекол Download PDF

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RU2018101291A
RU2018101291A RU2018101291A RU2018101291A RU2018101291A RU 2018101291 A RU2018101291 A RU 2018101291A RU 2018101291 A RU2018101291 A RU 2018101291A RU 2018101291 A RU2018101291 A RU 2018101291A RU 2018101291 A RU2018101291 A RU 2018101291A
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RU2018101291A
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RU2018101291A3 (ru
RU2735350C2 (ru
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Ларс ШНЕТТЕР
Тино ШРАЙНЕР
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Керамтек-Этек Гмбх
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    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62625—Wet mixtures
    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/6268—Thermal treatment of powders or mixtures thereof other than sintering characterised by the applied pressure or type of atmosphere, e.g. in vacuum, hydrogen or a specific oxygen 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
    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62695—Granulation or pelletising
    • 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

Claims (10)

1. Деталь из прозрачной корундовой керамики, отличающаяся тем, что керамика является однократно или многократно легированной.
2. Деталь по п. 1, отличающаяся тем, что общее количество легирующей примеси составляет ≤ 2000 частей на млн.
3. Деталь по п. 1, отличающаяся тем, что она обладает матовостью менее 10%, предпочтительно менее 6%, особенно предпочтительно менее 3%.
4. Деталь по п. 1, отличающаяся тем, что она обладает толщиной менее 800 мкм, предпочтительно менее 500 мкм, особенно предпочтительно менее 250 мкм.
5. Деталь по одному из пп. 1-4, отличающаяся тем, что средний размер зерен корундовой керамики (D50) составляет менее 750 нм, предпочтительно менее 500 нм, особенно предпочтительно менее 350 нм.
6. Способ изготовления детали из прозрачной корундовой керамики, отличающийся тем, что используемый в способе корундовый порошок является однократно или многократно легированным.
7. Способ по п. 6, отличающийся тем, что общее количество легирующей примеси составляет ≤ 2000 частей на млн.
8. Способ по п. 6 или 7, отличающийся тем, что он включает дополнительную стадию предварительного спекания.
9. Слоистый материал, включающий слой из детали из прозрачной корундовой керамики по одному из пп. 1-5 и по меньшей мере один другой слой из материала подложки.
10. Применение слоистого материала по п. 9 для дисплеев подводных компьютеров, мобильных телефонов, планшетов, записных книжек или часов, защитных часовых стекол, стойких к царапанью датчиков, наземных светильников, окон машин или линз камеры.
RU2018101291A 2015-06-16 2016-06-16 Прозрачный керамический материал в качестве компонента небьющихся оптических стекол RU2735350C2 (ru)

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US20220098110A1 (en) * 2018-12-14 2022-03-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for producing thin transparent ceramic parts and thin transparent ceramic parts

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CN107848889A (zh) 2018-03-27
DE102016210811A1 (de) 2016-12-22
US20180155247A1 (en) 2018-06-07
US11639312B2 (en) 2023-05-02
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JP6835748B2 (ja) 2021-02-24
EP3310740B1 (de) 2020-08-05

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