Melt processing of Bi--2212 superconductors using alumina

Holesinger, Terry G

Title: Melt processing of Bi--2212 superconductors using alumina

Patent · Fri Jan 01 00:00:00 EST 1999

OSTI ID:872544

Holesinger, Terry G ^[1]

Los Alamos, NM

Superconducting articles and a method of forming them, where the superconducting phase of an article is Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.y (Bi-2212). Alumina is combined with Bi-2212 powder or Bi-2212 precursor powder and, in order to form an intimate mixture, the mixture is melted and rapidly cooled to form a glassy solid. The glassy solid is comminuted and the resulting powder is combined with a carrier. An alternative to melting is to form the mixture of nanophase alumina and material having a particle size of less than about 10 microns. The powder, with the carrier, is melt processed to form a superconducting article.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

DOE Contract Number:: W-7405-ENG-36

Assignee:: Regents of Uniersity of California (Los Alamos, NM)

Patent Number(s):: US 5958842

OSTI ID:: 872544

Country of Publication:: United States

Language:: English

References (15)

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Reactive nanophase oxide additions to melt-processed high-T/sub c/ superconductors Goretta, K. C.; Brandel, B. P.; Lanagan, M. T. IEEE Transactions on Appiled Superconductivity, Vol. 5, Issue 2 https://doi.org/10.1109/77.402803	journal	June 1995
Directional isothermal growth of highly textured Bi ₂ Sr ₂ CaCu ₂ O _y Holesinger, T. G.; Miller, D. J.; Viswanathan, H. K. Applied Physics Letters, Vol. 63, Issue 7 https://doi.org/10.1063/1.109865	journal	August 1993
Formation of Bi-2212 superconducting whiskers from melt-quenched BSCCO containing alumina Kasuga, Toshihiro; Ono, Masayasu; Tsuji, Kenji Journal of Materials Research, Vol. 9, Issue 5 https://doi.org/10.1557/JMR.1994.1098	journal	May 1994
Crystallization of Bi–Sr–Ca–Cu–O glasses in oxygen Holesinger, T. G.; Miller, D. J.; Chumbley, L. S. Journal of Materials Research, Vol. 7, Issue 7 https://doi.org/10.1557/JMR.1992.1658	journal	July 1992
Electrical transport and superconductivity in the Al2O3-Bi2Sr1.8Ca1.2Cu2Oy and MgO-Bi2Sr1.8Ca1.2Cu2Oy composites Lin, J. J.; Lin, W. Y.; Tsui, R. F. Physica C: Superconductivity, Vol. 210, Issue 3-4 https://doi.org/10.1016/0921-4534(93)90990-8	journal	June 1993
Isothermal melt processing of Bi-2212 thick films Holesinger, T. G.; Phillips, D. S.; Coulter, J. Y. Physica C: Superconductivity, Vol. 243, Issue 1-2 https://doi.org/10.1016/0921-4534(94)02455-3	journal	February 1995
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Effect of Al ₂ O ₃ additives on the formation of superconducting whiskers (2212 phase) in melt-quenched BiSrCaCu ₂ O _x Abe, Yoshihiro; Hirata, Kazumi; Hosono, Hideo Journal of Materials Research, Vol. 7, Issue 7 https://doi.org/10.1557/JMR.1992.1599	journal	July 1992
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Title: Melt processing of Bi--2212 superconductors using alumina

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References (15)

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