Role of MnO in manganese–borate binary glass systems: a study on structure and thermal properties

Structural and thermal properties of x MnO - ( 100 - x ) B 2 O 3 (where x = 40 , 50 and 60 mol%) glass samples have been investigated with the employment of various techniques. Fourier transform infrared spectroscopy results revealed the influence of MnO on glass matrix. Decrease of B–O bond-related...

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Bibliographic Details
Published in:Bulletin of materials science 2017-09, Vol.40 (5), p.933-938
Main Authors: Lewandowski, T, Łapiński, M, Walas, M, Prześniak-Welenc, M, Wicikowski, L
Format: Article
Language:English
Subjects:
Boron oxides
Chemistry and Materials Science
Depolymerization
Differential scanning calorimetry
Electrons
Employment
Engineering
Fine structure
Fourier transforms
Grain size
Infrared spectroscopy
Manganese ions
Manganese oxides
Materials Science
Optics
Photoelectrons
Photoluminescence
Spectrum analysis
Stability analysis
Temperature
Thermal stability
Thermodynamic properties
X ray photoelectron spectroscopy
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Summary:Structural and thermal properties of x MnO - ( 100 - x ) B 2 O 3 (where x = 40 , 50 and 60 mol%) glass samples have been investigated with the employment of various techniques. Fourier transform infrared spectroscopy results revealed the influence of MnO on glass matrix. Decrease of B–O bond-related band intensities has been observed. MnO addition was found to introduce broken [ BO 2 O - ] n chains. Differential scanning calorimetry (DSC) measurements presented decreasing T g that indicates depolymerization of glass matrix in the considered compositional range. Moreover, thermal stability (TS) parameter has been evaluated using the DSC technique. It slightly decreased with MnO content. X-ray photoelectron spectroscopy results provided the evidence for Mn 2 + and Mn 3 + presence. Multiplet splitting, close to that of MnO, has been observed. It has been concluded that most of the manganese ions existed in the divalent state. Photoluminescence study revealed that manganese ions are tetragonally co-ordinated in a glassy matrix.
ISSN:0250-4707
0973-7669
DOI:10.1007/s12034-017-1455-4