PT118114A - Métodos e sistema para a produção de electrocerâmicos de óxido de titânio dopados com metais de transição e texturizados por fusão de zona com laser em atmosfera redutora e respetivo produto - Google Patents

Métodos e sistema para a produção de electrocerâmicos de óxido de titânio dopados com metais de transição e texturizados por fusão de zona com laser em atmosfera redutora e respetivo produto

Info

Publication number
PT118114A
PT118114A PT118114A PT11811422A PT118114A PT 118114 A PT118114 A PT 118114A PT 118114 A PT118114 A PT 118114A PT 11811422 A PT11811422 A PT 11811422A PT 118114 A PT118114 A PT 118114A
Authority
PT
Portugal
Prior art keywords
reducing atmosphere
laser
production
textured
xmxo2
Prior art date
Application number
PT118114A
Other languages
English (en)
Inventor
Mendes Da Costa Florinda
Miguel Freitas Ferreira Nuno
João Breda Lopes Diogo
Kavaleuski Andrei
Original Assignee
Univ Aveiro
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 Univ Aveiro filed Critical Univ Aveiro
Priority to PT118114A priority Critical patent/PT118114A/pt
Priority to EP22186468.9A priority patent/EP4310227A1/en
Publication of PT118114A publication Critical patent/PT118114A/pt

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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/653—Processes involving a melting step
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/22—Complex oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G33/00—Compounds of niobium
    • 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
    • C04B35/46—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 titanium oxides or titanates
    • 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
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
    • C30B13/16—Heating of the molten zone
    • C30B13/22—Heating of the molten zone by irradiation or electric discharge
    • C30B13/24—Heating of the molten zone by irradiation or electric discharge using electromagnetic waves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Inorganic Fibers (AREA)

Abstract

A PRESENTE INVENÇÃO DIZ RESPEITO A MÉTODOS E SISTEMAS DE CRESCIMENTO DE FIBRAS DE TI1-XMXO2-Y, EM QUE M É UM METAL DE TRANSIÇÃO DO GRUPO 5 DA TABELA PERIÓDICA, COM 0,1<X<0,4 E 0<Y<0,2. O CRESCIMENTO É REALIZADO EM UMA ATMOSFERA REDUTORA, UTILIZANDO A TÉCNICA DE FUSÃO DE ZONA COM LASER (LFZ - LASER FLOATING ZONE) PARA OBTER FIBRAS TI1-XMXO2-Y TEXTURIZADAS E CRISTALINAS, COM PROPRIEDADES TERMOELÉTRICAS MELHORADAS. A TÉCNICA DE LFZ PERMITE A APLICAÇÃO DE VÁRIAS ATMOSFERAS REDUTORAS NUMA GAMA DE PRESSÕES RELATIVAS DE 0,1 A 1,5 X 105 PA. O SISTEMA INCLUI UMA CÂMARA DE CRESCIMENTO, SUBSISTEMA DE CONTROLE DE ATMOSFERA, FEIXE LASER CONTÍNUO E UM SISTEMA ÓTICO PARA FOCAR O FEIXE LASER. A PRESENTE INVENÇÃO É ÚTIL PARA A PRODUÇÃO DAS REFERIDAS FIBRAS À BASE DE TI1-XMXO2-Y COM ELEVADAS PROPRIEDADES TERMOELÉTRICAS, DEVIDO À COMBINAÇÃO DE UMA ATMOSFERA REDUTORA COM AS CONDIÇÕES DE CRESCIMENTO, O QUE É DE INTERESSE PRINCIPALMENTE NO CAMPO DAS APLICAÇÕES TERMOELÉTRICAS.
PT118114A 2022-07-19 2022-07-19 Métodos e sistema para a produção de electrocerâmicos de óxido de titânio dopados com metais de transição e texturizados por fusão de zona com laser em atmosfera redutora e respetivo produto PT118114A (pt)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PT118114A PT118114A (pt) 2022-07-19 2022-07-19 Métodos e sistema para a produção de electrocerâmicos de óxido de titânio dopados com metais de transição e texturizados por fusão de zona com laser em atmosfera redutora e respetivo produto
EP22186468.9A EP4310227A1 (en) 2022-07-19 2022-07-22 Methods and system for producing textured transition metal-doped titanium oxide electroceramics by laser floating zone under reducing atmosphere and product thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT118114A PT118114A (pt) 2022-07-19 2022-07-19 Métodos e sistema para a produção de electrocerâmicos de óxido de titânio dopados com metais de transição e texturizados por fusão de zona com laser em atmosfera redutora e respetivo produto

Publications (1)

Publication Number Publication Date
PT118114A true PT118114A (pt) 2024-01-19

Family

ID=89432564

Family Applications (1)

Application Number Title Priority Date Filing Date
PT118114A PT118114A (pt) 2022-07-19 2022-07-19 Métodos e sistema para a produção de electrocerâmicos de óxido de titânio dopados com metais de transição e texturizados por fusão de zona com laser em atmosfera redutora e respetivo produto

Country Status (2)

Country Link
EP (1) EP4310227A1 (pt)
PT (1) PT118114A (pt)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2109193B1 (es) * 1996-04-19 1998-08-16 Consejo Superior Investigacion Procedimiento de preparacion y materiales conformados basados en compuestos autecticos binarios o ternarios de circonia.
KR100414519B1 (ko) * 2001-10-26 2004-01-13 학교법인 한양학원 고압산소 하에서의 루틸 단결정 성장방법
WO2017045181A1 (zh) * 2015-09-16 2017-03-23 苏州大学张家港工业技术研究院 一种金属氧化物宏观纤维及其制备方法
PT115438B (pt) * 2019-04-09 2022-07-27 Univ Aveiro Método e aparelho para a produção de materiais texturados através de fusão de zona com laser (lfz) com aplicação de um campo magnético externo

Also Published As

Publication number Publication date
EP4310227A1 (en) 2024-01-24

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