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Crystallization kinetics of Ni-doped Ca2Al2SiO7 glass microspheres

Melinda Majerová, Anna Prnová, Alfonz Plško, Branislav Hruška, Jana Valúchová, Jozef Kraxner, Els Bruneel (UGent) , Klaartje De Buysser (UGent) and Dušan Galusek
(2020) JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY. 142(5). p.2111-2121
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Abstract
The Ni-doped Ca(2)Al(2)SiO(7)glass systems were prepared by flame synthesis. Solid-state reaction was used to prepare the powder precursors. The concentration of Ni was 0.5, 1 and 3 mol%. Polydisperse systems were prepared with diameters between 5 and 140 mu m. Detailed examination of morphology of the glass microbeads by SEM revealed no features indicating the presence of crystalline phases. However, X-ray diffraction analysis showed that the samples GNi0.5 (0.5 mol% of Ni) and GNi1.0 (1.0 mol% of Ni) contained traces of crystalline gehlenite. HT-XRD was used to determine the temperature dependence of phase composition. For all prepared compositions, only one crystalline phase (Ca2Al2SiO7) was observed. DSC measurements in the temperature range 30-1200 degrees C at five different heating rates were carried out to study the thermal behavior. The DSC curves of all glasses contained one exothermic peak, which was attributed to crystallization of the gehlenite. The maximum of the peak decreased with increasing Ni content in the microspheres. The kinetic parameters (frequency factorA, apparent activation energyE(app)and the Avrami coefficientm) of the crystallization were determined using the Johnson-Mehl-Avrami-Kolgomorov model. In case of GNi0.5 and GNi1.0 glasses, the nucleation's rate had linear temperature dependence, the crystal growth interface is controlled by chemical boundary and the crystal growth is one-dimensional. The rate of nucleation is linear, the crystal interface growth is controlled by diffusion and one-dimensional crystal growth prevails in crystallization of the GNi3.0 (3.0 mol% of Ni).
Keywords
Physical and Theoretical Chemistry, Condensed Matter Physics, Flame synthesis, Glass microspheres, Ni-doped glass, Gehlenite, Crystallization kinetics, GLASS-CERAMICS, MODEL SELECTION, ALUMINOSILICATE GLASSES, OPTICAL-PROPERTIES, THERMAL-ANALYSIS, PHASE-CHANGE, CA2AL2SIO7, PHOTOLUMINESCENCE, CAO-AL2O3-SIO2, MICROSTRUCTURE

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MLA
Majerová, Melinda, et al. “Crystallization Kinetics of Ni-Doped Ca2Al2SiO7 Glass Microspheres.” JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, vol. 142, no. 5, 2020, pp. 2111–21, doi:10.1007/s10973-020-10154-7.
APA
Majerová, M., Prnová, A., Plško, A., Hruška, B., Valúchová, J., Kraxner, J., … Galusek, D. (2020). Crystallization kinetics of Ni-doped Ca2Al2SiO7 glass microspheres. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 142(5), 2111–2121. https://doi.org/10.1007/s10973-020-10154-7
Chicago author-date
Majerová, Melinda, Anna Prnová, Alfonz Plško, Branislav Hruška, Jana Valúchová, Jozef Kraxner, Els Bruneel, Klaartje De Buysser, and Dušan Galusek. 2020. “Crystallization Kinetics of Ni-Doped Ca2Al2SiO7 Glass Microspheres.” JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 142 (5): 2111–21. https://doi.org/10.1007/s10973-020-10154-7.
Chicago author-date (all authors)
Majerová, Melinda, Anna Prnová, Alfonz Plško, Branislav Hruška, Jana Valúchová, Jozef Kraxner, Els Bruneel, Klaartje De Buysser, and Dušan Galusek. 2020. “Crystallization Kinetics of Ni-Doped Ca2Al2SiO7 Glass Microspheres.” JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 142 (5): 2111–2121. doi:10.1007/s10973-020-10154-7.
Vancouver
1.
Majerová M, Prnová A, Plško A, Hruška B, Valúchová J, Kraxner J, et al. Crystallization kinetics of Ni-doped Ca2Al2SiO7 glass microspheres. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY. 2020;142(5):2111–21.
IEEE
[1]
M. Majerová et al., “Crystallization kinetics of Ni-doped Ca2Al2SiO7 glass microspheres,” JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, vol. 142, no. 5, pp. 2111–2121, 2020.
@article{8673041,
  abstract     = {{The Ni-doped Ca(2)Al(2)SiO(7)glass systems were prepared by flame synthesis. Solid-state reaction was used to prepare the powder precursors. The concentration of Ni was 0.5, 1 and 3 mol%. Polydisperse systems were prepared with diameters between 5 and 140 mu m. Detailed examination of morphology of the glass microbeads by SEM revealed no features indicating the presence of crystalline phases. However, X-ray diffraction analysis showed that the samples GNi0.5 (0.5 mol% of Ni) and GNi1.0 (1.0 mol% of Ni) contained traces of crystalline gehlenite. HT-XRD was used to determine the temperature dependence of phase composition. For all prepared compositions, only one crystalline phase (Ca2Al2SiO7) was observed. DSC measurements in the temperature range 30-1200 degrees C at five different heating rates were carried out to study the thermal behavior. The DSC curves of all glasses contained one exothermic peak, which was attributed to crystallization of the gehlenite. The maximum of the peak decreased with increasing Ni content in the microspheres. The kinetic parameters (frequency factorA, apparent activation energyE(app)and the Avrami coefficientm) of the crystallization were determined using the Johnson-Mehl-Avrami-Kolgomorov model. In case of GNi0.5 and GNi1.0 glasses, the nucleation's rate had linear temperature dependence, the crystal growth interface is controlled by chemical boundary and the crystal growth is one-dimensional. The rate of nucleation is linear, the crystal interface growth is controlled by diffusion and one-dimensional crystal growth prevails in crystallization of the GNi3.0 (3.0 mol% of Ni).}},
  author       = {{Majerová, Melinda and Prnová, Anna and Plško, Alfonz and Hruška, Branislav and Valúchová, Jana and Kraxner, Jozef and Bruneel, Els and De Buysser, Klaartje and Galusek, Dušan}},
  issn         = {{1388-6150}},
  journal      = {{JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}},
  keywords     = {{Physical and Theoretical Chemistry,Condensed Matter Physics,Flame synthesis,Glass microspheres,Ni-doped glass,Gehlenite,Crystallization kinetics,GLASS-CERAMICS,MODEL SELECTION,ALUMINOSILICATE GLASSES,OPTICAL-PROPERTIES,THERMAL-ANALYSIS,PHASE-CHANGE,CA2AL2SIO7,PHOTOLUMINESCENCE,CAO-AL2O3-SIO2,MICROSTRUCTURE}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{2111--2121}},
  title        = {{Crystallization kinetics of Ni-doped Ca2Al2SiO7 glass microspheres}},
  url          = {{http://dx.doi.org/10.1007/s10973-020-10154-7}},
  volume       = {{142}},
  year         = {{2020}},
}
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