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Gopalakrishnan et al., 1989 - Google Patents

Properties and structures of R2− xAxCuO4 phases: R= La, Pr and Nd; A= Sr, Pb and Cd

Gopalakrishnan et al., 1989

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Document ID
9270725128726620981
Author
Gopalakrishnan J
Subramanian M
Torardi C
Attfield J
Sleight A
Publication year
Publication venue
Materials research bulletin

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The R 2 CuO 4 phases for R= Pr and Nd were prepared and found to be semiconducting as previously reported. Crystal structures of both compounds were examined by profile refinements of neutron powder diffraction data. A series of phases of the type R 2− x Sr x …
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    • 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
    • H01—BASIC ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L39/00—Devices using superconductivity; Processes or apparatus peculiar to the manufacture or treatment thereof or of parts thereof
    • H01L39/02—Details
    • H01L39/12—Details characterised by the material
    • H01L39/125—Ceramic materials
    • H01L39/126—Ceramic materials comprising copper oxide
    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L39/00—Devices using superconductivity; Processes or apparatus peculiar to the manufacture or treatment thereof or of parts thereof
    • H01L39/24—Processes or apparatus peculiar to the manufacture or treatment of devices provided for in H01L39/00 or of parts thereof
    • H01L39/2419—Processes or apparatus peculiar to the manufacture or treatment of devices provided for in H01L39/00 or of parts thereof the superconducting material comprising copper oxide
    • 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
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • 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
    • Y10S505/775—High tc, above 30 k, superconducting material
    • Y10S505/776—Containing transition metal oxide with rare earth or alkaline earth
    • Y10S505/777—Lanthanum, e.g. La2Cu04

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