Savchuk Y. Regularities of synthesis and sintering of superconducting MgB2-based materials under high pressure

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0404U003659

Thesis Registration Form

0404U003659.pdf

Applicant for

Specialization

  • 05.02.01 - Матеріалознавство

14-10-2004

Specialized Academic Board

Д 26.230.01

Essay

The dissertation is aimed at the study of peculi-arities of structure formation during synthesis and sintering of MgB2 under high pressure, pressure of hot pressing and atmospheric pressure, the deter-mination of the correlation between the structure, superconducting characteristics and technological parameters of synthesis and sintering, the study the effect of Ta and Ті additives on the phase composi-tion, superconducting and mechanical properties of MgВ2-based materials. The method of manufactur-ing of highly dense (up to 98 %) nanostructural superconducting material that involver the synthe-sis from powdered mixture of initial components Mg, B and Ti at 2 GPa and 800-900 оС with the highest (as compared to the literature data) values of critical current density: jc 100 кА/сm2 in mag-netic fields up to 3 Т, and jc 10 кА/cm2 in the fields up to 5 Т has been developed.

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Files

Aref.doc

DisertaziyaSavchuk.doc

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