Effect of Calcination Temperature on the Phase Composition, Morphology, and Thermal Properties of ZrO2 and Al2O3 Modified with APTES (3-aminopropyltriethoxysilane)

Damian S Nakonieczny; Frank Kern; Lukas Dufner; Agnieszka Dubiel; Magdalena Antonowicz; Krzysztof Matus

doi:10.3390/ma14216651

Effect of Calcination Temperature on the Phase Composition, Morphology, and Thermal Properties of ZrO₂ and Al₂O₃ Modified with APTES (3-aminopropyltriethoxysilane)

Materials (Basel). 2021 Nov 4;14(21):6651. doi: 10.3390/ma14216651.

Authors

Damian S Nakonieczny^{1

2}, Frank Kern¹, Lukas Dufner¹, Agnieszka Dubiel², Magdalena Antonowicz², Krzysztof Matus³

Affiliations

¹ Institute for Manufacturing Technologies of Ceramic Components and Composites, University of Stuttgart, 70569 Stuttgart, Germany.
² Department of Biomaterials and Medical Devices Engineering, Faculty of Biomedical Engineering, Silesian University of Technology, Roosevelta 40 St., 41-800 Zabrze, Poland.
³ Department of Mechanical Engineering, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland.

Abstract

This paper describes the effect of calcination temperature on the phase composition, chemical composition, and morphology of ZrO₂ and Al₂O₃ powders modified with 3-aminopropyltriethoxysilane (APTES). Both ceramic powders were modified by etching in piranha solution, neutralization in ammonia water, reaction with APTES, ultrasonication, and finally calcination at 250, 350, or 450 °C. The obtained modified powders were characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, particle size distribution (PSD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDS), and thermogravimetric analysis (TGA).

Keywords: 3-aminopropyltriethoxysilane; alumina; surface modification; thermal properties; zirconia.

Abstract

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