Metallic Bonding to High-Temperature Superconducting Ceramics.

摘要

Yttrium-barium-copper-oxide (123) superconducting ceramic pellets where obtained from J.P. Singh and K.C. Goretta at Argonne National Laboratory (ANL). The pellets were prepared in accordance with established methods. The pellets were then thermocompressively bonded by the methods of Meiser, et al. The resistivities of the samples were determined using a Keithley 181 Nanovoltmeter and a Keithley 227 Current Source. The resistances were taken over a range of 0.1 amp to 1 amp and were converted to interfacial resistivities. A simple tensile test was also applied to the samples to determine bond strengths. 7 refs., 1 fig.