The influence of support temperature on Bi-2212 monoliths textured by diode laser zone melting

Autor:	Luis A. Angurel, M. Mora, G.F. de la Fuente, C. López-Gascón
Jazyk:	angličtina
Rok vydání:	2004
Předmět:	Superconductivity Zone melting Materials science Metals and Alloys Condensed Matter Physics Microstructure Laser law.invention Planar law Materials Chemistry Ceramics and Composites Texture (crystalline) Crystallite Electrical and Electronic Engineering Composite material Diode
Zdroj:	Digital.CSIC. Repositorio Institucional del CSIC instname
ISSN:	1361-6668 0953-2048
Popis:	A laser assisted zone melting process has been used to texture large Bi-2212 planar polycrystalline samples with approximate dimensions 100 mm × 10 mm × 1 mm using a high power diode laser. In this technique, the temperature of the support strongly affects the microstructure and the superconducting properties of the textured material. Both the surface solidification interfaces and the thickness solidification profile are shown to depend on the support temperature. This dependence has been correlated with the changes in the microstructure; in particular, with the development of a highly textured region. The thickness of this region changes from 200 up to 850 μm when the support temperature is increased up to 600°C and it has been found to strongly influence the superconducting properties of the material. The authors wish to thank the Spanish Ministry for Science and Technology (MCyT, MAT2002-04121-C03-02, DPI2002-01986) for financial support of this research.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f5d7c82c5081e4afd81704983227be7 http://hdl.handle.net/10261/74560 Zobrazit plný text záznamu