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Title:Applications of High-Intensity Ultrasound for Synthesis and Modification of Advanced Materials
Author(s):Prozorov, Tatiana
Doctoral Committee Chair(s):Kenneth S. Suslick
Department / Program:Nutritional Sciences
Discipline:Nutritional Sciences
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Physics, Condensed Matter
Abstract:Applications of superconductors are determined by the critical current density, above which a superconductor becomes resistive and dissipates energy. To increase the critical value, small defects are introduced into the superconductor's bulk ("pinning"). Ultrasonic irradiation of alkane slurries containing polycrystalline superconducting materials, with Fe(CO)5 or MO(CO) 6 leads to embedding of produced in situ ferromagnetic Fe2O3 or Mo2O5 nanoparticles into the bulk of superconducting material, thus creating novel nanocomposite materials. Study conducted on obtained Fe2O3-MgB2 and Mo2O5-MgB2 nanocomposite material exhibit significant enhancement of magnetic flux pinning. Similar study focused on such promising high-Tc superconductors as YBa 2Ca3CuO7-delta and Bi2Sr 2CaCu2O8+x. (Abstract shortened by UMI.).
Issue Date:2004
Description:177 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004.
Other Identifier(s):(MiAaPQ)AAI3148049
Date Available in IDEALS:2015-09-25
Date Deposited:2004

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