Magnetic Properties of Synthetic Gehlenite Glass Microspheres

• Authors: M. Majerová , A. Dvurečenskij , A. Cigáň , M. Škrátek , A. Prnová , J. Kraxner , D. Galusek , J. Maňka
• Languages of publication: EN

Abstracts

EN

In the paper, gehlenite amorphous microspheres were prepared by the flame synthesis of a powder precursor. In the first step, the precursor was prepared from a stoichiometric mixture of CaCO₃, Al₂O₃ and SiO₂ by a standard solid-state reaction method. Next, the precursor was sprayed into a CH₄-O₂ flame with the temperature of around 2200°C and molten droplets of synthetic gehlenite were rapidly cooled by distilled water. Structural and detailed magnetic properties were studied by the optical microscopy, X-ray diffraction and QD SQUID magnetometer. The gehlenite microspheres show a complex magnetic behaviour that is a function of the temperature and the magnetic field, e.g. diamagnetism and paramagnetism at 300 K and 2 K, respectively.

Keywords

EN

81.05.Kf; 75.50.Kj; 91.60.Pn; 75.20.-g; 75.50.Lk

Discipline

• 75.20.-g: Diamagnetism, paramagnetism, and superparamagnetism
• 91.60.Pn: Magnetic and electrical properties(see also 91.25.F- Rock and mineral magnetism)
• 81.05.Kf: Glasses (including metallic glasses)
• 75.50.Lk: Spin glasses and other random magnets
• 75.50.Kj: Amorphous and quasicrystalline magnetic materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 4
• Pages: 699-701

Dates

published

2017-04

Contributors

author

M. Majerová

• Department of Magnetometry, Institute of Measurement Science, SAS, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

A. Dvurečenskij

• Department of Magnetometry, Institute of Measurement Science, SAS, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

A. Cigáň

• Department of Magnetometry, Institute of Measurement Science, SAS, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

M. Škrátek

• Department of Magnetometry, Institute of Measurement Science, SAS, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

A. Prnová

• Vitrum Laugaricio - Joint Glass Center of the IIC SAS, TnU AD, FCHTP STU and Rona, a.s., Študenstská 2, 911 50 Trenčín, Slovakia

author

J. Kraxner

• Vitrum Laugaricio - Joint Glass Center of the IIC SAS, TnU AD, FCHTP STU and Rona, a.s., Študenstská 2, 911 50 Trenčín, Slovakia

author

D. Galusek

• Vitrum Laugaricio - Joint Glass Center of the IIC SAS, TnU AD, FCHTP STU and Rona, a.s., Študenstská 2, 911 50 Trenčín, Slovakia

author

J. Maňka

• Department of Magnetometry, Institute of Measurement Science, SAS, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

References

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Identifiers

DOI

10.12693/APhysPolA.131.699