公开(公告)号：US3801313A

公开(公告)日：1974-04-02

申请号：US3801313D

申请日：1972-05-19

申请人： HITACHI LTD

发明人： KAWABE U ,  KUDO M ,  FUKASE S

IPC分类号： C22C27/02 ,  H01L39/12 ,  C22C27/00 ,  H01F1/04 ,  H01F1/14

CPC分类号： H01L39/12 ,  C22C27/02 ,  Y10S420/901 ,  Y10S505/806

摘要： A superconducting material having a critical temperature higher by 3* to 5*K than that of and a critical current density several times higher than that of Nb3Ga provided by replacing a part of atoms in the Ga sites of Nb3Ga with atoms of one of Al, Mn, Sb, and Y and, when required, replacing a part of atoms in the Nb sites with Ta atoms and by subjecting this intermetallic compound to an aging process at 800*C for 300 hours. This material has a Beta -W type crystal structure similarly to Nb3Ga.

公开(公告)号：US3710844A

公开(公告)日：1973-01-16

申请号：US70692468

申请日：1968-02-20

申请人： HITACHI LTD

发明人： DOI T ,  KUDO M

IPC分类号： B22D19/00 ,  B21F19/00 ,  B22D11/00 ,  B22D23/04 ,  H01B12/02 ,  H01B12/04 ,  H01B12/08 ,  H01B12/10 ,  H01B13/00 ,  H01L39/06 ,  H01L39/24

CPC分类号： H01L39/2403 ,  B22D11/008 ,  Y10S505/915 ,  Y10S505/916 ,  Y10T29/49014

摘要： A method of producing a superconducting strip, comprising continuously passing a superconducting wire or tape through a mold, casting a molten stabilizing metal for said wire into said mold, cooling the molten stabilizing metal during its passage through said mold along the travelling path of said wire with said wire embedded therein to thereby solidify said molten stabilizing metal in close contact with said wire and continuously drawing the resultant superconducting strip from said mold; and an apparatus for practicing said method. The superconducting strip produced according to the present invention is free from breakage of the wire, has highly uniform and excellent properties and can be produced at lower cost than the conventional ones.

摘要翻译： 一种制造超导条的方法，包括使超导线或带连续通过模具，将用于所述线的熔融稳定金属浇铸到所述模具中，在熔融稳定金属沿着所述导线的行进路径通过所述模具期间冷却所述熔融稳定金属 其中所述线嵌入其中，从而使所述熔融稳定金属固化，与所述线紧密接触，并从所述模具连续拉制所得超导条; 以及用于实施所述方法的装置。 根据本发明生产的超导带材没有丝线断裂，具有高度均匀和优异的性能，并且可以以比常规的更低的成本生产。

公开(公告)号：US3778260A

公开(公告)日：1973-12-11

申请号：US3778260D

申请日：1971-09-09

申请人： HITACHI LTD

发明人： KAWABE U ,  KUDO M ,  ISHIBASHI M ,  FUKASE S

IPC分类号： C22C27/02 ,  H01L39/12 ,  C22C27/00

CPC分类号： H01L39/12 ,  Y10S420/901 ,  Y10S505/805 ,  Y10S505/806 ,  Y10T29/49014

摘要： Intermetallic compound superconducting materials having a stable Beta -W type crystal structure represented by a general formula of A3B brought into their closest packed structure and having high critical temperatures in which a part of the atoms either in the A-sites or in the B-sites are replaced by the atoms of a tetra-, penta- or hexa-valent transition metal so that the ratio between the average atomic radius of the atoms in the A-sites and that of the atoms in the B-sites lies close to 1.

摘要翻译： 具有由通式A3B表示的稳定的β-W型晶体结构的金属间化合物超导材料成为其最紧密的堆积结构并具有高临界温度，其中部分原子在A位或B位 被四价，五价或六价过渡金属的原子代替，使得A位中原子的平均原子半径与B位的原子的平均原子半径之比接近1。