Effects of Pt Doping on Microstructure of YBa 2 Cu 3 O x Superconductor Prepared by Directional Solidification
1994; Institute of Physics; Volume: 33; Issue: 2R Linguagem: Inglês
10.1143/jjap.33.999
ISSN1347-4065
AutoresWonbaek Kim, Gunjoo Shim, Daekyu Jang, Chang-Youl Suh, Woosuck Shin, Kwangsoo No,
Tópico(s)Copper Interconnects and Reliability
ResumoYBa 2 Cu 3 O x superconductor was prepared by directional solidification of Y 2 BaCuO 5 –BaCuO 2 –CuO–Pt powder mixture. Pt doping produced a microstructure which contained fine Y 2 BaCuO 5 particles in textured YBa 2 Cu 3 O x grains. The same effect was not observed when a Pt wire was inserted in the sample instead of powders. Energy-dispersive X-ray spectroscopy (EDS) revealed that a compound containing Ba–Cu–Pt was formed around the wire as well as around the powders. The compound was identified as Ba 4 Pt 1+ x Cu 2- x O 9- z .
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