Properties of melt textured Sm/Nd–Ba–Cu composites

Autor:	W. Hennig, A.W Kaiser, H. J. Bornemann
Rok vydání:	1998
Předmět:	Superconductivity Materials science Fabrication Remanence Energy Engineering and Power Technology Critical current Electrical and Electronic Engineering Composite material Condensed Matter Physics Microstructure Oxygen atmosphere Magnetic susceptibility Electronic Optical and Magnetic Materials
Zdroj:	Physica C: Superconductivity. 299:185-190
ISSN:	0921-4534
DOI:	10.1016/s0921-4534(98)00016-1
Popis:	Melt textured Nd 1 Ba 2 Cu 3 O y - and Sm 1 Ba 2 Cu 3 O y -composites with different additions of Nd 4 Ba 2 Cu 2 O 10 /Sm 2 Ba 1 Cu 1 O 5 have been prepared. The temperature schedule, the oxygen atmosphere during melt texturing and the amount of additions determines the resulting superconducting properties. From the evaluation of critical temperature and critical current density for fields up to 5 T, the necessity of different processing parameters for Nd 1 Ba 2 Cu 3 O y - and Sm 1 Ba 2 Cu 3 O y -composites was deduced. Fabrication of Nd 1 Ba 2 Cu 3 O y composites is more complicated and not yet optimized. In contrast, Sm 1 Ba 2 Cu 3 O y shows good results of microstructure, shown by flux maps, and of high j c leading to higher levitation forces.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d2cc010ee0290bc74a538d47190c23f8 https://doi.org/10.1016/s0921-4534(98)00016-1 Zobrazit plný text záznamu Full Text from ScienceDirect