Paper Title:
Change of Superconducting Parameters of Y-Ba-Cu-O Slabs and Rings due to High-Energy Ion Beams

Different high-Tc superconducting Y-Ba-Cu-O samples of slabs and rings have been investigated. Using differently prepared Y1Ba2Cu3O7-d materials, significant deviations between irradiated and unirradiated specimens have been detected in their properties. These investigations demonstrate that unlikely prepared superconductors are differently sensitive to the external irradiation, although they have the same composition. The irradiation applied during these experiments consisted of high-energy Bi-ions with the flux of 5x1010 ions/cm2 and with the energy of 720 MeV. As is experienced, a considerable variation of the magnetic moment in the extent of 19-44% and a significant increase of the critical current density up to 41% can be detected. These originate from the change of the properties of materials due to the irradiation. For the evaluation of the experiments a new fitting method is elaborated for the temperature dependence of the critical current density, providing fully correct results for the whole temperature interval. The A.C. magnetic measurements show, that the irradiation causes to reach the state of the perfect diamagnetism at higher temperatures, than in the case of unirradiated samples. Similarly, the irradiated specimens have much lower losses, than the unirradiated ones and even these smaller values disappear at low temperatures.

Edited by
I. Kirschner et al., 2006, Advances in Science and Technology, 47, 63
Online since
October 2006
US$ 28,-
Authors: C.H. Zhang, Yue Sheng Wang, K.Q. Chen, Ji Guo Sun, J.M. Quan, Chang Qi Chen
Abstract:Low-activation Fe-Cr-Mn alloy and 316L stainless steel were irradiated with 92 MeV Ar ions at about 500°C, to fluences of 0.8~1.7×1021 ions...
Authors: Hyung Ha Jin, Chan Sun Shin, Wheung Whoe Kim
Abstract:A change of the mechanical property and microstructure of an Fe ion irradiated polycrystalline Fe-9wt%Cr model alloy to 1 dpa was examined...
Authors: Ji Yeon Park, Seok Min Kang, Weon Ju Kim, Akira Kohyama
Abstract:To estimate the ion-irradiation effect on various types of SiCf/SiC composites, a silicon self-ion irradiation was performed at temperatures...
Authors: Li Tian, Xiang Jian Meng, Jing Yang, Jing Lan Sun, Sheng Zhao Yuan, Jian Lu Wang, Wei Bai, Jun Hao Chu
Chapter 09: Materials Science
Abstract:The effect of high energy electron irradiation on poly(vinlidene fluoride-trifluoroethylene) copolymer film with thickness about 180 nm has...
Authors: N. Chuchvaga, E. Bogdanova, A. Strelchuk, Evgenia V. Kalinina, D.B. Shustov, M. Zamoryanskaya, V. Shkuratov
Chapter 7: Electrical and Structural Characterization
Abstract:A comparative research of the cathodoluminescence and electrical characteristics of the samples 4H-SiC irradiated with high energy Xe ions...