PL437956A1 - Transparent ceramic material based on lutetium oxide - Google Patents

Transparent ceramic material based on lutetium oxide

Info

Publication number
PL437956A1
PL437956A1 PL437956A PL43795621A PL437956A1 PL 437956 A1 PL437956 A1 PL 437956A1 PL 437956 A PL437956 A PL 437956A PL 43795621 A PL43795621 A PL 43795621A PL 437956 A1 PL437956 A1 PL 437956A1
Authority
PL
Poland
Prior art keywords
optical
ceramic material
lutetium oxide
temperature
arc
Prior art date
Application number
PL437956A
Other languages
Polish (pl)
Inventor
Andrzej Kruk
Original Assignee
Uniwersytet Pedagogiczny Im. Komisji Edukacji Narodowej W Krakowie
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 Uniwersytet Pedagogiczny Im. Komisji Edukacji Narodowej W Krakowie filed Critical Uniwersytet Pedagogiczny Im. Komisji Edukacji Narodowej W Krakowie
Priority to PL437956A priority Critical patent/PL437956A1/en
Publication of PL437956A1 publication Critical patent/PL437956A1/en

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
    • 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
    • C04B35/62665—Flame, plasma or melting treatment
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

Przedmiotem zgłoszenia jest przeźroczysty materiał ceramiczny na osnowie tlenku lutetu, który jest produktem procesu, w którym proszek tlenku lutetu prasuje się, korzystnie mechanicznie w formie pod naciskiem jednoosiowym 10 — 20 MPa, a otrzymaną wypraskę doprowadza do całkowitego stanu ciekłego w atmosferze przepływającego wokół wypraski gazu obojętnego, stosując łuk plazmy zainicjowany wyładowaniem elektrycznym, a następnie obniża się przez czas do 25 min. temperaturę stopionego materiału utrzymując działanie łuku, po czym po zgaszeniu łuku materiał chłodzi się w atmosferze gazu obojętnego przez kontrolowany czas, wynoszący do 140 minut, aż do osiągnięcia temperatury 300°C, korzystnie przy zmiennej szybkości chłodzenia. Materiał ceramiczny według wynalazku może znaleźć zastosowanie w przemyśle jako materiał optyczny, bądź magnetooptyczny, zwłaszcza do wytwarzania izolatorów optycznych, cyrkulatorów optycznych i rotatorów Faradaya, do sterowania wiązką światła w sieciach światłowodowych lub układach optycznych pracujących z laserami dużej i średniej mocy, a także do wytwarzania wzierników pieców wysokotemperaturowych i komór spalania.The subject of the application is a transparent ceramic material based on lutetium oxide, which is a product of a process in which lutetium oxide powder is compacted, preferably mechanically, in a mold under a uniaxial pressure of 10 - 20 MPa, and the compact obtained is brought to a complete liquid state in the atmosphere of gas flowing around the compact inert, using a plasma arc initiated by an electrical discharge, and then decreases for up to 25 minutes. the temperature of the molten material while maintaining the arc, after which, after the arc is extinguished, the material is cooled in an inert gas atmosphere for a controlled time of up to 140 minutes, until a temperature of 300°C is reached, preferably with a variable cooling rate. The ceramic material according to the invention can be used in industry as an optical or magneto-optical material, especially for the production of optical insulators, optical circulators and Faraday rotators, for controlling the light beam in optical fiber networks or optical systems working with high and medium power lasers, as well as for the production of sight glasses of high-temperature furnaces and combustion chambers.

PL437956A 2021-05-25 2021-05-25 Transparent ceramic material based on lutetium oxide PL437956A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL437956A PL437956A1 (en) 2021-05-25 2021-05-25 Transparent ceramic material based on lutetium oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL437956A PL437956A1 (en) 2021-05-25 2021-05-25 Transparent ceramic material based on lutetium oxide

Publications (1)

Publication Number Publication Date
PL437956A1 true PL437956A1 (en) 2022-11-28

Family

ID=84391361

Family Applications (1)

Application Number Title Priority Date Filing Date
PL437956A PL437956A1 (en) 2021-05-25 2021-05-25 Transparent ceramic material based on lutetium oxide

Country Status (1)

Country Link
PL (1) PL437956A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220227675A1 (en) * 2016-04-27 2022-07-21 The Govermment of the United States of America, as represented by the Secretary of the Navy High strength ceramics with novel fracture mode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220227675A1 (en) * 2016-04-27 2022-07-21 The Govermment of the United States of America, as represented by the Secretary of the Navy High strength ceramics with novel fracture mode
US11807580B2 (en) * 2016-04-27 2023-11-07 The Government Of The United States Of America, As Represented By The Secretary Of The Navy High strength ceramics with novel fracture mode

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