GB1202032A - Improvements in transparent ceramics and method for producing same - Google Patents

Improvements in transparent ceramics and method for producing same

Info

Publication number
GB1202032A
GB1202032A GB4143167A GB4143167A GB1202032A GB 1202032 A GB1202032 A GB 1202032A GB 4143167 A GB4143167 A GB 4143167A GB 4143167 A GB4143167 A GB 4143167A GB 1202032 A GB1202032 A GB 1202032A
Authority
GB
United Kingdom
Prior art keywords
oxide
mixture
oxides
transparent
sept
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
Application number
GB4143167A
Inventor
R C Anderson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1202032A publication Critical patent/GB1202032A/en
Expired legal-status Critical Current

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
    • C04B35/50—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
    • 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

Abstract

1,202,032. Transparent polycrystalline ceramics; modified rare earth oxides. GENERAL ELECTRIC CO. 11 Sept., 1967 [28 Sept., 1966], No. 41431/67. Headings C1A and C1J. A transparent polycrystallinic cubic ceramic consists of 2-15 mol. per cent of one or more ThO 2 , ZrO 2 and HfO 2 , the balance being (a) an oxide of an element of Ar. No. 66-71; or (b) a mixture of oxides of an element of Ar. No. 58-60, 62-71; or (c) a mixture of an oxide of an element of (b) with Y 2 O 3 , the oxides of (b) and (c) being proportioned that (1) their average cationic radii are no greater than 0À93 Šand (2) the differences in their cationic radii is no greater than 0.22 A. The mixture is fired at at least 1900‹ C. and if any oxide has been reduced, refired at 1200‹ C. in an oxygen containing atmosphere.
GB4143167A 1966-09-28 1967-09-11 Improvements in transparent ceramics and method for producing same Expired GB1202032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58251966A 1966-09-28 1966-09-28

Publications (1)

Publication Number Publication Date
GB1202032A true GB1202032A (en) 1970-08-12

Family

ID=24329460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4143167A Expired GB1202032A (en) 1966-09-28 1967-09-11 Improvements in transparent ceramics and method for producing same

Country Status (5)

Country Link
AT (1) AT285419B (en)
BE (1) BE703898A (en)
DE (1) DE1646554B2 (en)
GB (1) GB1202032A (en)
SE (1) SE310860B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867618A1 (en) * 2006-06-14 2007-12-19 Schott AG Optical elements as well as mapping optics
EP1867617A1 (en) * 2006-06-14 2007-12-19 Schott AG Opto-ceramics, optical elements prepared therefrom as well as mapping optics
CN116283289A (en) * 2023-02-28 2023-06-23 四川大学 High-transparency Gd 2 O 3 Preparation method of transparent ceramic material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015199018A1 (en) * 2014-06-23 2015-12-30 東ソー株式会社 Colored translucent zirconia sintered body and powder, and use thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867618A1 (en) * 2006-06-14 2007-12-19 Schott AG Optical elements as well as mapping optics
EP1867617A1 (en) * 2006-06-14 2007-12-19 Schott AG Opto-ceramics, optical elements prepared therefrom as well as mapping optics
JP2007332023A (en) * 2006-06-14 2007-12-27 Schott Ag Optical ceramic, optical element prepared from the optical ceramic, and mapping optics
US7700510B2 (en) 2006-06-14 2010-04-20 Schott Ag Opto-ceramics made from In2O3 or oxides Y, Lu, Sc, Yb, In, Gd, and La, optical elements made therefrom, and mapping optics including the optical elements
US7751123B2 (en) 2006-06-14 2010-07-06 Schott Ag Optical elements made from ceramics comprising one or more oxides of Y, Sc, in and/or lanthanide elements and mapping optics including the optical elements
CN116283289A (en) * 2023-02-28 2023-06-23 四川大学 High-transparency Gd 2 O 3 Preparation method of transparent ceramic material
CN116283289B (en) * 2023-02-28 2024-02-02 四川大学 High-transparency Gd 2 O 3 Preparation method of transparent ceramic material

Also Published As

Publication number Publication date
DE1646554B2 (en) 1972-03-30
AT285419B (en) 1970-10-27
BE703898A (en) 1968-02-01
DE1646554A1 (en) 1971-08-26
SE310860B (en) 1969-05-12

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees