title: Effect of metal oxides addition on the superconducting properties of YBaCuO.
abstract: The superconducting properties of YBCO superconductor with ZrO2 addition prepared by different contents were prepared by a unique method so called thermal pyrolysis process to study the effect of the zirconium oxide on the electromagnetic properties and superconducting mechanism of the superconductor. The critical temperature of YBCO superconductor was not predominately dependent upon the zirconium oxide. The maximum magnetism was observed by adding 2% zirconium oxide. The addition of zirconium oxide forming a pinning center of magnetic flux due to ZrO2 phase which was related to the change of electromagnetic properties of the YBCO superconductor. The result indicates that magnetization is proportional to the number of magnetic flux lines passing through the sample. The added ZrO2 appear to contribute the increasing Vickers hardness.
authors: Department of Electronic Engineering, Sunmoon University, 100 Kalsan-Ri, Tangjeoung-Myun, Asan, Chungnam 336-840, S-Korea.
authors: Sang-Heon
authors: SH
authors: Lee
authors: Yong
authors: Y
authors: Choi