Effect of nano-sized metallic Au additions at large scale on the phase stability of Bi-2212 ceramics
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Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Bi1.8Sr2AuxCa1.1Cu2.1Oy (Bi-2212) polycrystalline ceramics with x = 0.25, 0.3 and 0.35 have been prepared by the solid-state reaction method. XRD results showed the Bi-2212 phase as the major one in all samples, accompanied by metallic Au, and some secondary phases such as Bi2CaO4. T-c values are very similar for all samples, indicating that the carrier concentration is independent of the amount of Au. Magnetic properties of samples, determined through magnetic hysteresis measurements (M-H) performed at both T = 2 and 10 K, showed that samples maintain their diamagnetic characteristics in all cases. In addition, J(c) values, calculated from their magnetic hysteresis loops using the Bean's model, showed that addition of metallic Au in high contents leads to an important increase when compared to the samples with low Au content.
Açıklama
Anahtar Kelimeler
Critical-Current Density, Superconducting Properties, Magnetic-Properties, Physical-Properties, Particles, Nanoparticles, Temperature, Enhancement, Improvement, Tapes
Kaynak
Journal of Materials Science-Materials in Electronics
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
30
Sayı
15
