Since the discovery of superconductivity in the Ba-Y-Cu-O system about a year ago, and more recently in the Bi-Sr-Ca-Cu-O system, it has been a challenge to understand and improve the transport pro
A class of organosilicate has been developed that can reach ultra low-dielectric constant (k=2).
A class of nanoporous organosilicate has been developed that can reach an ultralow-dielectric constant (kless than or equal to2).
Mesa and planar geometry GaN Schottky rectifiers were fabricated on 3-12 mum thick epitaxial layers.
Ceramic processing methods have been used to prepare high T sub c superconductors in both the La sub (2-x)Sr sub (x)CuO sub (4-8) system and the Ba sub 2 YCu sub 3 O sub (9-8) system.
The processing and fabrication of superconducting ceramics will be discussed emphasizing tape casting as a method of producing flexible thin sheets of unfired ceramic.
Of the various fabrication means for bulk ceramic high T sub c superconductors, tape casting is a method offering promise because it produces thin sheets or strips, can be easily shaped and can be
Of the high temperature superconductor families, the YBa sub 2 Cu sub 3 O sub 7 member still offers potential for high critical current density (J sub c).
The critical current density limitations of oxide superconductors processed by ceramic methods are outlined.
A short history of oxide superconductors will be reviewed leading to the discovery of the Ba sub 2 YCu sub 3 O sub 7 compound superconducting at > 90K.
