FR2397379A1 - Procede de preparation d'une ceramique d'yttrium transparente - Google Patents

Procede de preparation d'une ceramique d'yttrium transparente

Info

Publication number
FR2397379A1
FR2397379A1 FR7820640A FR7820640A FR2397379A1 FR 2397379 A1 FR2397379 A1 FR 2397379A1 FR 7820640 A FR7820640 A FR 7820640A FR 7820640 A FR7820640 A FR 7820640A FR 2397379 A1 FR2397379 A1 FR 2397379A1
Authority
FR
France
Prior art keywords
lanthanum
yttrium
temperature
hours
powder
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.)
Granted
Application number
FR7820640A
Other languages
English (en)
Other versions
FR2397379B1 (fr
Inventor
William H Rhodes
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.)
Verizon Laboratories Inc
Original Assignee
GTE Laboratories 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 GTE Laboratories Inc filed Critical GTE Laboratories Inc
Publication of FR2397379A1 publication Critical patent/FR2397379A1/fr
Application granted granted Critical
Publication of FR2397379B1 publication Critical patent/FR2397379B1/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une céramique transparente de haute densité à base d'yttrium polycristallin mélangé à du lanthane. Selon la présente invention, la concentration du lanthane est comprise entre 6 et 14 % en moles. Le procédé de préparation comporte les étapes successives suivantes : - mélange du lanthane ou un corps composé libérant du lanthane avec de l'yttrium ou un corps composé libérant de l'yttrium à la cuisson; - séchage de la poudre résultante; - cuisson de la poudre séchée à une température de 1 000 degrés C dans l'air; - moulage de la poudre cuite de façon à obtenir la forme recherchée ; - frittage du produit moulé pendant un temps compris entre 1/6 et 6 heures à une température supérieure à la température de transition de la phase H, et entre 1/2 et 6 heures à une température inférieure à celle de la transition phase H à C, en atmosphère suffisamment faible en oxygène de façon à éviter toute oxydation. Application : enveloppes tubulaires de lampes à vapeur de sodium.
FR7820640A 1977-07-11 1978-07-11 Procede de preparation d'une ceramique d'yttrium transparente Granted FR2397379A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/814,341 US4115134A (en) 1977-07-11 1977-07-11 Transparent yttria ceramics and method for producing same

Publications (2)

Publication Number Publication Date
FR2397379A1 true FR2397379A1 (fr) 1979-02-09
FR2397379B1 FR2397379B1 (fr) 1984-11-09

Family

ID=25214773

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820640A Granted FR2397379A1 (fr) 1977-07-11 1978-07-11 Procede de preparation d'une ceramique d'yttrium transparente

Country Status (9)

Country Link
US (2) US4115134A (fr)
JP (1) JPS5417911A (fr)
BE (1) BE868860A (fr)
CA (1) CA1090376A (fr)
DE (1) DE2829996A1 (fr)
FR (1) FR2397379A1 (fr)
GB (1) GB2000758B (fr)
IT (1) IT1096861B (fr)
NL (1) NL7807227A (fr)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211758A (en) * 1978-12-26 1980-07-08 Gte Laboratories Incorporated Ceramic compositions and articles prepared therefrom
US4174973A (en) * 1979-01-29 1979-11-20 Gte Laboratories Incorporated Transparent yttria ceramics containing magnesia or magnesium aluminate
FR2469477A1 (fr) * 1979-11-09 1981-05-22 Rhone Poulenc Ind Procede de fabrication de grenat polycristallin, grenat polycristallin et monocristal correspondant
FR2469478A1 (fr) * 1979-11-09 1981-05-22 Rhone Poulenc Ind Procede de fabrication de grenat polycristallin comportant l'aluminium et/ou le gallium et/ou l'indium et au moins un element pris dans le groupe constitue par les terres rares et l'yttrium, monocristaux correspondants
US4466930A (en) * 1982-06-18 1984-08-21 General Electric Company Preparation of yttria-gadolinia ceramic scintillators by vacuum hot pressing
US4473513A (en) * 1982-06-18 1984-09-25 General Electric Company Method for sintering high density yttria-gadolinia ceramic scintillators
US4518546A (en) * 1982-06-18 1985-05-21 General Electric Company Preparation of yttria-gadolinia ceramic scintillators by sintering and gas hot isostatic pressing
US4571312A (en) * 1982-06-18 1986-02-18 General Electric Company Preparation of yttria-gadolinia ceramic scintillators by sintering and gas hot isostatic pressing
US4518545A (en) * 1982-06-18 1985-05-21 General Electric Company Method for sintering high density yttria-gadolinia ceramic scintillators
US4466929A (en) * 1982-06-18 1984-08-21 General Electric Company Preparation of yttria-gadolinia ceramic scintillators by vacuum hot pressing
JPS6155096A (ja) * 1984-08-23 1986-03-19 株式会社　安田製作所 直列２胴型キヤプスタンの過張力防止方法
US4806295A (en) * 1986-10-31 1989-02-21 Gte Laboratories Incorporated Ceramic monolithic structure having an internal cavity contained therein and a method of preparing the same
US4764491A (en) * 1987-05-11 1988-08-16 General Motors Corporation Low temperature sintering of yttria stabilized zirconia with lanthana borate additions
US4996175A (en) * 1988-01-25 1991-02-26 Precision Castparts Corp. Refractory composition and method for metal casting
US5004712A (en) * 1988-11-25 1991-04-02 Raytheon Company Method of producing optically transparent yttrium oxide
JP2773193B2 (ja) * 1989-03-03 1998-07-09 住友電気工業株式会社 透光性イツトリア焼結体の製造方法
US4883217A (en) * 1989-03-17 1989-11-28 Gte Laboratories Incorporated Method of bonding a ceramic article to a metal article
US5055361A (en) * 1989-03-17 1991-10-08 Gte Laboratories Incorporated Bonded ceramic-metal article
US4883218A (en) * 1989-03-17 1989-11-28 Gte Laboratories Incorporated Method of brazing a ceramic article to a metal article
FR2661904B1 (fr) * 1990-05-11 1993-10-15 Ceramiques Composites Composition pour ceramiques et ses procedes d'obtention.
US6136736A (en) * 1993-06-01 2000-10-24 General Electric Company Doped silica glass
US5631522A (en) * 1995-05-09 1997-05-20 General Electric Company Low sodium permeability glass
CN100447106C (zh) * 2005-01-17 2008-12-31 上海大学 掺La3+的Y2O3基透明激光陶瓷的制备方法
JP3974152B2 (ja) * 2006-01-26 2007-09-12 Ｔｏｗａ株式会社 低密着性材料、樹脂成形型及び防汚性材料
FR2898890B1 (fr) * 2006-03-23 2008-05-09 Saint Gobain Ct Recherches Produit d'oxyde d'yttrium fritte et dope.
DE102006027957A1 (de) * 2006-06-14 2007-12-20 Schott Ag Optische Elemente sowie Abbildungsoptiken
DE102006027958A1 (de) * 2006-06-14 2007-12-20 Schott Ag Optokeramiken, daraus hergestellte optische Elemente sowie Abbildungsoptiken
JP2008143726A (ja) * 2006-12-06 2008-06-26 Japan Fine Ceramics Center 多結晶透明ｙ２ｏ３セラミックス及びその製造方法
FR2917404B1 (fr) * 2007-06-15 2009-09-04 Saint Gobain Ct Recherches Produit fritte de structure cubique.
CN102167587A (zh) * 2010-12-21 2011-08-31 中国科学院上海光学精密机械研究所 镧锆共掺稀土倍半氧化物透明陶瓷及其制备方法
CN102320834B (zh) * 2011-06-10 2013-07-17 上海大学 一种可用于飞秒脉冲激光器的Yb3+掺杂(ScxY1-x)2O3透明陶瓷及其制备方法
CN102249679A (zh) * 2011-06-10 2011-11-23 上海大学 掺Ho3+氧化镧钇透明陶瓷材料的制备方法
CN110937898B (zh) * 2019-11-21 2021-12-21 天津津航技术物理研究所 一种倍半氧化物窗口材料的制备方法
CN112174667B (zh) * 2020-09-22 2022-11-22 天津津航技术物理研究所 一种y2o3窗口材料的制备方法
CN114921773B (zh) * 2022-04-21 2023-03-31 北京科技大学 一种金刚石基稀土掺杂单层或多层功能薄膜的制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897358A (en) * 1971-03-01 1975-07-29 Gen Electric Polycrystalline ceramic lasers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1249832B (fr) * 1960-11-29
GB1252851A (fr) * 1969-08-27 1971-11-10
US3640887A (en) * 1970-04-06 1972-02-08 Gen Electric Transparent zirconia- hafnia- and thoria-rare earth ceramics
US3878280A (en) * 1970-05-05 1975-04-15 Us Army Method for production of transparent yttrium oxide

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897358A (en) * 1971-03-01 1975-07-29 Gen Electric Polycrystalline ceramic lasers

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CA1972 *
CA1975 *
EXBK/77 *

Also Published As

Publication number Publication date
US4115134A (en) 1978-09-19
JPS5417911A (en) 1979-02-09
IT1096861B (it) 1985-08-26
BE868860A (fr) 1978-11-03
GB2000758B (en) 1982-02-17
CA1090376A (fr) 1980-11-25
GB2000758A (en) 1979-01-17
FR2397379B1 (fr) 1984-11-09
NL7807227A (nl) 1979-01-15
IT7825103A0 (it) 1978-06-29
DE2829996A1 (de) 1979-02-08
US4147744A (en) 1979-04-03

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