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    • 2. 发明授权
    • Elongate bismuth system superconductor having aligned 2212 phase
    • 具有对准2212相的细长铋系超导体
    • US5401717A
    • 1995-03-28
    • US194980
    • 1994-02-14
    • Kenneth W. Lay
    • Kenneth W. Lay
    • H01L39/24H01B12/04
    • H01L39/248Y10S505/704Y10S505/742Y10S505/782Y10T29/49014
    • This invention is related to the preparation of an elongate conductor having a silver sheath, and a core of an aligned polycrystalline oxide superconductor having the approximate formula Bi.sub.2-x Pb.sub.x Sr.sub.2-a L.sub.a+b Ca.sub.1-b Cu.sub.2 O.sub.y where y is from 7.5 to 8.5, and L is a lanthanide. A powder mixture is formed comprised of a first portion of a superconducting bismuth oxide compound that can be reaction-sintered to form the core oxide superconductor, and a second portion of oxides suitable for reacting with the first portion to form the core oxide superconductor. An elongate body is formed having a silver sheath, and a core of the mixture. The body is deformed to align the first portion, and heated to reaction-sinter the first and second portions to form the core oxide superconductor.
    • 本发明涉及制备具有银鞘的细长导体和具有近似式Bi2-xPbxSr2-aLa + bCa1-bCu2Oy的取向多晶氧化物超导体的芯,其中y为7.5至8.5,L为 镧系元素。 形成由超导氧化铋化合物的第一部分组成的粉末混合物,其可被反应烧结以形成核心氧化物超导体,以及第二部分氧化物,其适于与第一部分反应以形成氧化铁超导体。 形成具有银护套的细长体和混合物的芯。 使主体变形以对齐第一部分,并加热以使第一和第二部分反应烧结以形成氧化铁超导体。
    • 8. 发明授权
    • Method of forming a tape of the high temperature oxide superconductors
    • 形成高温氧化物超导体胶带的方法
    • US5192739A
    • 1993-03-09
    • US723032
    • 1991-06-28
    • Kenneth W. Lay
    • Kenneth W. Lay
    • C01G1/00C01G29/00H01B12/04H01B13/00H01L39/24
    • H01L39/248Y10S505/739Y10S505/74
    • A method of forming a superconducting tape having a silver sheath and a polycrystalline oxide superconductor core includes, forming at least one silver foil to have a receiving surface for supporting a deposit, and at least one enclosing surface that can cover the deposit and overlap another portion of the foil so that the surfaces form the sheath. The foil has a first thickness at the receiving surface and a second thickness at the enclosing surface. A precursor deposit of the superconductor is formed on the receiving surface. The enclosing surface is wrapped to cover the deposit and overlap another portion of the foil to form the sheath. The first and second thicknesses being preselected so that the thickness of the overlapping foils is equivalent to the thickness of foil oppositely facing the overlapping foils. The overlapping foils are sealed, and annealed to reaction-sinter the sealed deposit and form the tape.
    • 形成具有银鞘和多晶氧化物超导体芯的超导带的方法包括:形成至少一个银箔以具有用于支撑沉积物的接收表面,以及至少一个可覆盖沉积物并且覆盖另一部分的封闭表面 的箔,使得表面形成护套。 箔在接收表面具有第一厚度,在封闭表面具有第二厚度。 在接收表面上形成超导体的前体沉积物。 封闭的表面被包裹以覆盖沉积物并与箔的另一部分重叠以形成护套。 第一和第二厚度被预选为使得重叠的箔的厚度等于相对于重叠箔的箔的厚度。 重叠的箔被密封,并退火以对密封的沉积物进行反应烧结并形成带。