DE69704817T2 - Durchsichtiges polykristallines Aluminiumoxyd und dessen Herstellungsverfahren - Google Patents

Durchsichtiges polykristallines Aluminiumoxyd und dessen Herstellungsverfahren

Info

Publication number
DE69704817T2
DE69704817T2 DE69704817T DE69704817T DE69704817T2 DE 69704817 T2 DE69704817 T2 DE 69704817T2 DE 69704817 T DE69704817 T DE 69704817T DE 69704817 T DE69704817 T DE 69704817T DE 69704817 T2 DE69704817 T2 DE 69704817T2
Authority
DE
Germany
Prior art keywords
manufacturing process
aluminum oxide
polycrystalline aluminum
transparent polycrystalline
transparent
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 - Fee Related
Application number
DE69704817T
Other languages
English (en)
Other versions
DE69704817D1 (de
Inventor
George Wei
Arlene Hecker
David Goodman
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.)
Osram Sylvania Inc
Original Assignee
Osram Sylvania Inc
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 Osram Sylvania Inc filed Critical Osram Sylvania Inc
Publication of DE69704817D1 publication Critical patent/DE69704817D1/de
Application granted granted Critical
Publication of DE69704817T2 publication Critical patent/DE69704817T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C04B35/01—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
    • C04B35/115—Translucent or transparent products
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/302—Vessels; Containers characterised by the material of the vessel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Discharge Lamp (AREA)
DE69704817T 1996-07-29 1997-07-02 Durchsichtiges polykristallines Aluminiumoxyd und dessen Herstellungsverfahren Expired - Fee Related DE69704817T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/681,739 US5682082A (en) 1996-07-29 1996-07-29 Translucent polycrystalline alumina and method of making same

Publications (2)

Publication Number Publication Date
DE69704817D1 DE69704817D1 (de) 2001-06-21
DE69704817T2 true DE69704817T2 (de) 2001-09-27

Family

ID=24736577

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69704817T Expired - Fee Related DE69704817T2 (de) 1996-07-29 1997-07-02 Durchsichtiges polykristallines Aluminiumoxyd und dessen Herstellungsverfahren

Country Status (8)

Country Link
US (1) US5682082A (de)
EP (1) EP0822575B1 (de)
JP (1) JPH1092380A (de)
CN (1) CN1106676C (de)
CA (1) CA2211225C (de)
CZ (1) CZ291434B6 (de)
DE (1) DE69704817T2 (de)
TW (1) TW396147B (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6083451A (en) * 1995-04-18 2000-07-04 Applied Materials, Inc. Method of producing a polycrystalline alumina ceramic which is resistant to a fluorine-comprising plasma
JPH1154091A (ja) * 1997-07-31 1999-02-26 Matsushita Electron Corp マイクロ波放電ランプ
CA2261380A1 (en) 1998-03-12 1999-09-12 Osram Sylvania Inc. Mercury and lead free high pressure sodium lamp
US6268696B1 (en) 1999-02-03 2001-07-31 Osram Sylvania Inc. Mercury and lead free high pressure sodium lamp
US6004503A (en) * 1998-10-02 1999-12-21 Osram Sylvania Inc. Method of making a ceramic arc tube for metal halide lamps
US6639362B1 (en) * 2000-11-06 2003-10-28 General Electric Company High pressure discharge lamp
US6731066B2 (en) * 2001-02-23 2004-05-04 Osram Sylvania Inc. Ceramic arc tube assembly
KR100912306B1 (ko) * 2001-08-02 2009-08-14 쓰리엠 이노베이티브 프로퍼티즈 컴파니 무정질 물질 및 세라믹의 제조 방법
DE60223550T2 (de) 2001-08-02 2008-10-23 3M Innovative Properties Co., St. Paul Verfahren zur herstellung von gegenständen aus glas sowie so hergestellte glaskeramikgegenstände
KR100885329B1 (ko) 2001-08-02 2009-02-26 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Ａｌ₂Ｏ₃-희토류 산화물-ＺｒＯ₂/ＨｆＯ₂물질, 및그의 제조 및 사용 방법
US7507268B2 (en) * 2001-08-02 2009-03-24 3M Innovative Properties Company Al2O3-Y2O3-ZrO2/HfO2 materials, and methods of making and using the same
US6566817B2 (en) 2001-09-24 2003-05-20 Osram Sylvania Inc. High intensity discharge lamp with only one electrode
EP1463691B1 (de) * 2002-01-04 2006-06-14 Koninklijke Philips Electronics N.V. Gesinterte formkörper und elektrische lampe
JP2005532250A (ja) * 2002-07-10 2005-10-27 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 透明多結晶酸化アルミニウム
US8056370B2 (en) 2002-08-02 2011-11-15 3M Innovative Properties Company Method of making amorphous and ceramics via melt spinning
US7811496B2 (en) 2003-02-05 2010-10-12 3M Innovative Properties Company Methods of making ceramic particles
US6844285B1 (en) 2003-09-03 2005-01-18 Osram Sylvania Inc. Transparent polycrystalline yttrium aluminum garnet
US20050132658A1 (en) * 2003-12-18 2005-06-23 3M Innovative Properties Company Method of making abrasive particles
JP4951842B2 (ja) * 2004-02-25 2012-06-13 パナソニック株式会社 高圧ナトリウムランプ
EP1805119B1 (de) * 2004-10-01 2015-07-01 Ceranova Corporation Polykristalline aluminiumartikel und herstellungsverfahren
US7247591B2 (en) * 2005-05-26 2007-07-24 Osram Sylvania Inc. Translucent PCA ceramic, ceramic discharge vessel, and method of making
US7481963B2 (en) * 2005-06-28 2009-01-27 Osram Sylvania Inc. Method of reducing magnesium loss during sintering of aluminum oxide articles
US20080283522A1 (en) * 2007-05-14 2008-11-20 Shuyl Qin Translucent polycrystalline alumina ceramic
US7678725B2 (en) * 2007-05-14 2010-03-16 General Electric Company Translucent polycrystalline alumina ceramic
US8278233B2 (en) * 2009-09-09 2012-10-02 Ngk Insulators, Ltd. Translucent polycrystalline sintered body, method for producing the same, and arc tube for high-intensity discharge lamp
KR20180018756A (ko) 2015-06-16 2018-02-21 세람텍-에텍 게엠베하 파괴-저항성 광학 장치용 부품으로서의 투명 세라믹
US11870221B2 (en) 2021-09-30 2024-01-09 Federal-Mogul Ignition Llc Spark plug and methods of manufacturing same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3026210A (en) * 1961-01-03 1962-03-20 Gen Electric Transparent alumina and method of preparation
US3377176A (en) * 1964-12-04 1968-04-09 Coors Porcelain Co Alumina ceramic
DE1596932B2 (de) * 1966-12-29 1976-06-16 N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) Alkalimetalldampfbestaendiges glas auf der basis sio tief 2 -al tief 2 - o tief 3 -cao, insbesondere verwendbar als huelle fuer eine natriumdampfentladungslampe
US3635739A (en) * 1969-06-04 1972-01-18 Corning Glass Works Silica-free calcium aluminate glass-ceramic articles
US3935495A (en) * 1974-03-22 1976-01-27 General Electric Company Chemically polished polycrystalline alumina material
US4285732A (en) * 1980-03-11 1981-08-25 General Electric Company Alumina ceramic
US4567396A (en) * 1982-11-26 1986-01-28 General Electric Company Increased efficacy high pressure sodium lamp yielded by increased wall temperature operation
US4580075A (en) * 1982-11-26 1986-04-01 General Electric Company High pressure sodium lamp having improved coloring rendition
US4841195A (en) * 1983-04-29 1989-06-20 U.S. Philips Corporation Discharge lamp having a yttrium aluminum garnet discharge envelope
JPS59219849A (ja) * 1983-05-30 1984-12-11 Mitsubishi Electric Corp 封着物質
JPS59219850A (ja) * 1983-05-30 1984-12-11 Mitsubishi Electric Corp 封着物質
US4633137A (en) * 1984-10-31 1986-12-30 General Electric Company Glaze polished polycrystalline alumina material
US5451553A (en) * 1993-09-24 1995-09-19 General Electric Company Solid state thermal conversion of polycrystalline alumina to sapphire
EP0657399B1 (de) * 1993-12-10 1997-07-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe mit keramischer Entladungsröhre, dafür geeigneter keramischer Körper und Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
US5682082A (en) 1997-10-28
CN1106676C (zh) 2003-04-23
CZ222297A3 (cs) 1998-02-18
CN1182951A (zh) 1998-05-27
CZ291434B6 (cs) 2003-03-12
JPH1092380A (ja) 1998-04-10
DE69704817D1 (de) 2001-06-21
EP0822575B1 (de) 2001-05-16
EP0822575A3 (de) 1998-03-25
EP0822575A2 (de) 1998-02-04
CA2211225C (en) 2007-03-27
CA2211225A1 (en) 1998-01-29
TW396147B (en) 2000-07-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee