Studies of physico-chemical properties and fractal dimensions of MgB2 superconductor surface

The porous structure of MgB 2 has been investigated using atomic force microscopy (AFM) and sorption techniques. The fractal dimension and surface roughness parameters were evaluated from (AFM) and nitrogen adsorption–desorption isotherms measured at −196 °C for MgB 2 sample. Adsorption capacity, sp...

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Bibliographic Details
Published inJournal of thermal analysis and calorimetry Vol. 108; no. 3; pp. 985 - 989
Main Authors Chądzyński, G. W., Staszczuk, P., Sternik, D., Błachnio, M.
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.06.2012
Subjects
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Measurement Science and Instrumentation
Physical Chemistry
Polymer Sciences
Atomic force microscopy (AFM)
Surface roughness parameters of MgB
Sorptometry methods
Fractal dimensions
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Summary:The porous structure of MgB 2 has been investigated using atomic force microscopy (AFM) and sorption techniques. The fractal dimension and surface roughness parameters were evaluated from (AFM) and nitrogen adsorption–desorption isotherms measured at −196 °C for MgB 2 sample. Adsorption capacity, specific surface area, and fractal dimensions were determined from adsorption–desorption isotherms. The sorption isotherms of MgB 2 samples were S-shaped and belong to type II according to the IUPAC classification. The results of fractal dimensions of MgB 2 surface determined on the basis sorptometry and AFM data are compared.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-011-1981-z