RU1838242C - Способ получени сверхпровод щего соединени - Google Patents

Способ получени сверхпровод щего соединени

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Publication number
RU1838242C
RU1838242C SU894742684A SU4742684A RU1838242C RU 1838242 C RU1838242 C RU 1838242C SU 894742684 A SU894742684 A SU 894742684A SU 4742684 A SU4742684 A SU 4742684A RU 1838242 C RU1838242 C RU 1838242C
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RU
Russia
Prior art keywords
superconducting compound
oxygen
sample
product
producing
Prior art date
Application number
SU894742684A
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English (en)
Inventor
Майкл Мак Каррон Юджин (Ш)
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Е.И.Дюпон Де Немур Энд Компани
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Publication of RU1838242C publication Critical patent/RU1838242C/ru

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/02—Oxides or hydroxides
    • C01F11/04—Oxides or hydroxides by thermal decomposition
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G3/00—Compounds of copper
    • C01G3/006—Compounds containing, besides copper, two or more other elements, with the exception of oxygen or hydrogen
    • 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
    • C04B35/45—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 copper oxide or solid solutions thereof with other oxides
    • C04B35/4504—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 copper oxide or solid solutions thereof with other oxides containing rare earth oxides
    • C04B35/4508—Type 1-2-3
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N60/00—Superconducting devices
    • H10N60/01—Manufacture or treatment
    • H10N60/0268—Manufacture or treatment of devices comprising copper oxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/76—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by a space-group or by other symmetry indications
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/80—Material per se process of making same
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/80—Material per se process of making same
    • Y10S505/801—Composition
    • Y10S505/809—Ceramic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/80—Material per se process of making same
    • Y10S505/81—Compound
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/80—Material per se process of making same
    • Y10S505/815—Process of making per se

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

Йспользование:неорганическа  хими , синтез сверхпровод щих оксидных материалов . Сущность изобретени : нитрат бари , оксид меди и оксид иттри  или редкоземельного элемента смешивают и измельчают в агатовой ступке. Полученный порошок прессуют в диски. Диск помещают в печь, нагревают до 900°С, выдерживают 30 мин и охлаждают до температуры окружающей среды.

Description

Изобретение относитс  к синтезу неорганических соединений, содержащих в своем составе редкоземельные элементы и иттрий, а именно к способам получени  сверхпровод щего материала и может быть использовано дл  изготовлени  сверхпровод щих изделий.
Цель изобретени  - упрощение способа при сохранении электрофизических параметров образца.
Пример. Ва(МОз)2 (5,979 г), 2,730 г СиО и 1,291 г 1гОз измельчают совместно в течение 15 мин в агатовой ступке и из полученного смешанного порошка прессуют диски диаметром 1 см и толщиной 0,2 см. Один диск помещают в золотой контейнер и нагревают на воздухе в лечи от комнатной температуры до температуры окончательного нагрева 900°С со скоростью примерно 10°С в минуту. В течение 30 мин поддерживают температуру 900°С. Затем печь выключают и оставл ют охлаждать до температуры окружающей среды (примерно в течение 6 ч), после чего образец вынимают из печи. Обожженный диск был черного цвета . Была получена ренгтенограмма порошка
продукта. Рентгенограмма показывает, что продукт - УВа2СизОх с орторомбической симметрией содержит очень небольшое количество YaBaCuOs и ВаСи02 в качестве примесей. Материал показывает эффект Мейсснера при температуре примерно 90 К, указыва  таким образом на температуру перехода в серхпровод щее состо ние, равную примерно 90 К.
Получены и другие сверхпровод щие материалы общей формулы МВа2Си20х, где М - У, Nd, Sin, Eu, Gd, Dy, Ho, Er, Tm, Yb и Zu, aX - 6,5 - 7.
Использование при реализации насто щего способа в качестве соли бари  нитрата бари  позвол ет упростить способ за счет исключени  операций повторного измельчени  продукта и нагрева, то есть получить продукт с высокими электрофизическими параметрами в одну стадию нагрева.

Claims (1)

  1. Формула изобретени 
    Способ получени  сверхпровод щего соединени  общей формулы МВа2Си20х, где М - выбран из группы У, Nd, Sm, Eu, Gd. Dy, Ho, Er, Tm, YbZu, 6,5 X 7,0, включающий смешение соли бари , оксидов меди и
    31838242 4
    соответствующего металла М в атомном от-фере до получени  продукта, отличаюношении М : Ва : Си 1 : 2 : 3 и отжигщ и и с   тем. что, с целью упрощени  спополученного порошка в кислородсодержа-соба при сохранении электрофизических
    щей атмосфере при 875 - 950°С до образо-параметров образца, в качестве соли бари 
    вани  МВагСиаОу, где 6,0 ЈY а 6,4, и5 используют нитрат бари  и полученную
    охлаждени  а кислородсодержащей атмос-смесь перед отжигом прессуют.
SU894742684A 1987-06-22 1989-12-20 Способ получени сверхпровод щего соединени RU1838242C (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/064,459 US4861753A (en) 1987-06-22 1987-06-22 Process for making superconductors using barium nitrate
PCT/US1988/001881 WO1988010237A1 (en) 1987-06-22 1988-06-09 Improved process for making 90 k superconductors

Publications (1)

Publication Number Publication Date
RU1838242C true RU1838242C (ru) 1993-08-30

Family

ID=22056141

Family Applications (1)

Application Number Title Priority Date Filing Date
SU894742684A RU1838242C (ru) 1987-06-22 1989-12-20 Способ получени сверхпровод щего соединени

Country Status (8)

Country Link
US (1) US4861753A (ru)
EP (1) EP0364494A4 (ru)
JP (1) JPH02503906A (ru)
KR (1) KR890701471A (ru)
AU (1) AU612183B2 (ru)
HU (1) HUT52645A (ru)
RU (1) RU1838242C (ru)
WO (1) WO1988010237A1 (ru)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5041321A (en) * 1984-11-02 1991-08-20 The Boeing Company Fiberformed ceramic insulation and method
US5398840A (en) * 1984-11-02 1995-03-21 The Boeing Company Microparticle enhanced fibrous ceramic baffle for cryogenic liquid containers
US5589441A (en) * 1984-11-02 1996-12-31 The Boeing Company Superconductive fiberform ceramic composite
US5549850A (en) * 1984-11-02 1996-08-27 The Boeing Company LaMnO3 -coated ceramics
US6559103B1 (en) * 1988-02-12 2003-05-06 The Boeing Company Method for producing superconducting oxide compounds
US5089466A (en) * 1987-12-17 1992-02-18 The University Of Colorado Foundation, Inc. Stable mixed metal superconductive oxides containing nitrogen
US5021395A (en) * 1988-07-01 1991-06-04 E. I. Du Pont De Nemours And Company Process for making superconductors and their precursors
US5304666A (en) * 1988-07-01 1994-04-19 E. I. Du Pont De Nemours And Company Process for making superconductors and their precursors
JPH02302358A (ja) * 1989-05-15 1990-12-14 Ngk Insulators Ltd 平板状酸化物超電導体の焼成方法
US5356868A (en) * 1989-07-03 1994-10-18 Gte Laboratories Incorporated Highly oriented superconductor oxide ceramic platelets and process for the production thereof
US4997810A (en) * 1989-10-05 1991-03-05 W. R. Grace & Co.-Conn. Vibratory calcination of inorganic oxide superconductor precursor powders
US5696057A (en) * 1990-07-24 1997-12-09 Honeywell Inc. Producing high TC superconductor bulk composites
US5407618A (en) * 1990-08-13 1995-04-18 The Boeing Company Method for producing ceramic oxide compounds
US5300483A (en) * 1992-01-16 1994-04-05 Sinha Shome N Process for preparing shaped superconductor materials via nonequilibrium precursors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5685814A (en) * 1979-12-14 1981-07-13 Tdk Electronics Co Ltd Condenser
GB2201955B (en) * 1987-03-11 1991-09-18 Ibm Electrically superconducting compositions and processes for their preparation
EP0357683A4 (en) * 1987-05-19 1991-05-08 E.I. Du Pont De Nemours And Company Improved process for making 90 k superconductors
US4866031A (en) * 1987-06-09 1989-09-12 E. I. Du Pont De Nemours And Company Process for making 90 K superconductors from acetate precursor solutions
HUT52646A (en) * 1987-06-09 1990-07-28 Du Pont Method for making super-conducting substance with critical temperature of 90 kelvin grades

Also Published As

Publication number Publication date
KR890701471A (ko) 1989-12-20
JPH02503906A (ja) 1990-11-15
US4861753A (en) 1989-08-29
AU2313188A (en) 1989-01-19
EP0364494A1 (en) 1990-04-25
EP0364494A4 (en) 1991-05-08
WO1988010237A1 (en) 1988-12-29
AU612183B2 (en) 1991-07-04
HUT52645A (en) 1990-07-28

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