English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/4398
Título

Approximation to the laser floating zone preparation of high temperature BSCCO superconductors by DSC

AutorMayoral Gastón, María del Carmen ; Andrés Gimeno, José Manuel ; Bona, M. T.; Angurel, Luis A.; Natividad, Eva
Palabras claveDSC
BSCCO superconductors
Solid diffusion
Precursor composition
Fecha de publicación2004
EditorElsevier
CitaciónThermochimica Acta 409 (2004) 157–164
ResumenDifferential scanning calorimetry (DSC) has been used to simulate laser fusion of ceramic precursors to prepare BSCCO high temperature superconducting materials. At fast heating rates, typical of the laser floating zone, the energy required for complete melting of the precursor increases with the Bi to Sr+Ca ratio, in agreement with the critical current results obtained. At lowheating rates, solid-state reactions involving ionic rearrangements take place before incongruent melting. These changes can be divided into three processes and can be quantified from calorimetric measurements. Lower heating rates and isothermal experiments allow detailed visualisation of the ionic arrangements taking place. The results prove that the mechanism of the final phase formation is dependent on the fabrication procedure.
Descripciónjournal page: http://www.elsevier.com/wps/find/journaldescription.cws_home/500855/description#description
URIhttp://hdl.handle.net/10261/4398
DOI10.1016/S0040-6031(03)00354-X
Aparece en las colecciones: (ICB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
thermochica acta 409.pdf642,87 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.