M
M. E. Davis
Researcher at Bell Labs
Publications - 8
Citations - 1756
M. E. Davis is an academic researcher from Bell Labs. The author has contributed to research in topics: High-temperature superconductivity & Grain boundary. The author has an hindex of 8, co-authored 8 publications receiving 1747 citations.
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Journal ArticleDOI
High critical currents in Y‐Ba‐Cu‐O superconductors
S. Jin,T. H. Tiefel,R. C. Sherwood,M. E. Davis,R. B. van Dover,G. W. Kammlott,R. A. Fastnacht,H. D. Keith +7 more
TL;DR: In this article, a melt-textured growth of polycrystalline YBa2Cu3O7−δ superconductor using directional solidification created an essentially 100% dense structure consisting of long, needle- or plate-shaped crystals preferentially aligned parallel to the a-b conduction plane.
Journal ArticleDOI
Melt-textured growth of polycrystalline YBa2Cu3O7- delta with high transport Jc at 77 K.
Sungho Jin,Thomas Henry Tiefel,Richard Curry Sherwood,R. B. van Dover,M. E. Davis,G. W. Kammlott,R. A. Fastnacht +6 more
TL;DR: The present work demonstrates that problems caused by low critical current densities and significant deterioration in weak magnetic fields can be overcome through proper microstructural control using molten oxide processing.
Journal ArticleDOI
Superconductivity in the Bi-Sr-Ca-Cu-O compounds with noble metal additions
TL;DR: In this article, the resistivity and magnetic susceptibility measurements on sintered Bi4Sr3Ca2Cu4O16+x containing 20% by weight of Au, Ag, or Pt-group metals indicate that Au and the Ptgroup metals significantly suppress or eliminate the superconducting transition in BiSr•Ca•Cu•O.
Journal ArticleDOI
Large magnetic hysteresis in a melt‐textured Y‐Ba‐Cu‐O superconductor
S. Jin,R. C. Sherwood,E. M. Gyorgy,T. H. Tiefel,R. B. van Dover,S. Nakahara,Lynn Schneemeyer,R. A. Fastnacht,M. E. Davis +8 more
TL;DR: In this paper, it was shown that the suspension behavior observed in YBa2Cu3O7−δ is a generic consequence of large grain size, and not due to the presence of Ag oxide or Ag particles.
Journal ArticleDOI
Grain-growth enhancement in the YBa2Cu3O7−δ superconductor by silver-oxide doping
Thomas Henry Tiefel,Sungho Jin,Richard Curry Sherwood,M. E. Davis,G. W. Kammlott,P.K. Gallagher,David Wilfred Johnson,R. A. Fastnacht,W. W. Rhodes +8 more
TL;DR: In this article, the addition of silver oxide has been found to accelerate the decomposition and melting of the Y-Ba-Cu-O superconductor, which exhibits, after sintering near 980°C, morphology of very large stacked-plate grains for the YBa 2 Cu 3 O 7−δ phase and the presence of decomposition products.