Date of Publication
2004
Document Type
Master's Thesis
Degree Name
Master of Science in Physics
Subject Categories
Physics
College
College of Science
Department/Unit
Physics
Thesis Adviser
Reuben V. Quiroga
Defense Panel Chair
Lydia S. Roleda
Defense Panel Member
Emmanuel T. Rodulfo
Angelina Silverio
Abstract/Summary
Superconducting MgB2 films were prepared using magnesium chloride hexahydrate and boric acid electrolytes, by electrochemical deposition and post-annealing. Electrochemical deposition cell was composed of Ag plate as working electrode, Ag/Ag+ as reference electrode and Pt as counter electrode. Scanning electron microscopy showed the presence of hexagonal-shaped MgB2 crystallites and MgO phases in all the samples. X-ray diffraction analysis revealed 4 peaks of MgB2. The resistivity-temperature measurement showed the effect of annealing time on the critical transition temperature of the samples. The Tc of 39 K was observed in the films annealed at 300 degrees Centigrade for 120 minutes while Tc of 33K and 30 K were observed in samples annealed at 300 degrees Centigrade for 90 minutes.
Abstract Format
html
Language
English
Format
Electronic
Accession Number
CDTG003737
Shelf Location
Archives, The Learning Commons, 12F Henry Sy Sr. Hall
Physical Description
1 computer optical disc ; 4 3/4 in.
Keywords
Superconductors--Manufacture; Semiconductor films; Thin films
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Recommended Citation
De Los Reyes, G. B. (2004). Fabrication and characterization of MgB2 films by electrochemical deposition and post-annealing. Retrieved from https://animorepository.dlsu.edu.ph/etd_masteral/3201
