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  • 1 Wrocław University of Technology Wybrzeże Institute of Physics, Faculty of Fundamental Problems of Technology Wyspiańskiego 27 50-370 Wrocław Poland Wyspiańskiego 27 50-370 Wrocław Poland
  • | 2 University of Odessa Physical Research Institute 27 Pastera St. Odessa 270100 Ukraine 27 Pastera St. Odessa 270100 Ukraine
  • | 3 Maria Curie-Sklodowska University Department of Physicochemistry of Solid Surface, Chemistry Faculty M. Curie-Sklodowska Sq. 3 20-031 Lublin Poland M. Curie-Sklodowska Sq. 3 20-031 Lublin Poland
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Abstract  

In this paper the theoretical approach and applications of Cahn ultramicrobalance to kinetic study on the thermal decomposition of the high-temperature Y1Ba2Cu3O7-x superconductor are presented. Thermogravimetric in situ measurements of oxygen loss from Y1Ba2Cu3O6 samples heated isothermally in a relatively high dynamic vacuum were performed with a Cahn RG electrobalance. Single-phase orthorhombic samples of composition Y1Ba2Cu3O7-x (highest oxygen content) were synthesized from stoichiometric (1:2:3) mixtures of high-purity Y2O3, BaCO3 and CuO. The original 1:2:3 mixture was prepared by the two-stage procedure described earlier. The crystal structure of the sample in the original orthorhombic phase was controlled by the X-ray powder method (CuKα radiation) using a Stadi P Stoe diffractometer with a position-sensitive detector. Activation energy is estimated from appropriate Arrhenius plots.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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