ZrO2-CeO2 ceramic powders obtained from a sol-gel process using acetylacetone as a chelating agent for potential application in prosthetic dentistry

• Autorzy: Nakonieczny D. , Paszenda Z. , Drewniak S. , Radko T. , Lis M.

Identyfikatory

DOI

10.5277/ABB-00476-2015-03

• Języki publikacji: EN

Abstrakty

EN

Purpose: The main objective of this study was to obtain single-phase β-ZrO2 powders with so-called soft agglomerates reproducibile morphology with acetyl-acetone as a chelating-agent. To the best of our knowledge there is no avaiable data which determine the effect of acetyl acetone on the phase composition and morphology of ceria-doped ZrO2 powders for biomedical applications. Methods: Twenty variants of powders with different water to zirconia precursor and acetylacetone to zirconia precursor molar ratios were prepared. 0.9ZrO20.1CeO2 powders were obtained by a hydrolysis and condensation and further calcination of zirconium n-propoxide in a simple one-step sol-gel process. Influence of acetyloacetone to zirconia precursor on the phase composition ratio and water to zirconia precursor was investigated. Samples have been characterized by X-ray diffraction (XRD), Raman spectroscopy (RS), thermal analysis (TGA/DTA) and scanning electron microscopy (SEM) measurements. Results: Ceramic powders prepared by sol-gel process, according to the various concentration of chelating agent and water show different morphology and phase composition. Conclusions: Higher molar ratios of AcAc in range with smaller amounts of water cause hard agglomerates, obtained powders are characterized by highly thermally stable behaviour and various phase composition. With higher molar ratios of water to zirconium-n-propoxide so-called soft agglomerates and one phase powders are obtained.

Słowa kluczowe

EN

sol-gel process; X-ray Methods; Thermal Analysis; ZrO2; Prosthetic Dentistry

PL

proces zol-żel; metody rentgenowskie; analiza termiczna; ZrO2; protetyka

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2016
• Tom: Vol. 18, no. 3
• Strony: 53--60
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wykr.

Twórcy

autor

Nakonieczny D.

• Department of Biomaterials and Medical Devices Engineering, Silesian University of Technology, Zabrze, Poland

autor

Paszenda Z.

• Department of Biomaterials and Medical Devices Engineering, Silesian University of Technology, Zabrze, Poland

autor

Drewniak S.

• Department of Optoelectronics, Silesian University of Technology, Gliwice, Poland

autor

Radko T.

• Institute for Chemical Processing of Coal, Zabrze; Poland

autor

Lis M.

• Institute of Non-Ferrous Metals, Division of Powders and Composite Materials, Gliwice, Poland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.