Structure investigations of commercial zirconia ceramic powder

• Autorzy: Dercz G. , Prusik K. , Pająk L.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The microstructure characterization of commercially available zirconia powder was the purpose of this paper. Different methods of structure analysis were applied owing to the complex, multiphase structure of studied material. Design/methodology/approach: The X-ray diffraction (XRD) and scanning electron microscopy (SEM) investigations were performed on commercial zirconia ceramic material (Metco 202 (ZrO 2 - 20 wt.%Y 2O 3)). The Rietveld method appeared to be very useful in the verification of the qualitative phase composition and in the determination of phase abundance. Hill and Howard procedure was applied for quantitative phase analysis. The parameters of the individual diffraction line profiles were determined by PRO-FIT Toraya procedure. The powder morphology was analyzed by SEM method practical. Findings: The presence of Y2O3 phase besides of monoclinic, tetragonal and cubic forms of ZrO2 phase was stated. The cubic zirconia phase appeared to be the main component of the sample (68.2 wt.%) whereas the content of Y2O3 is the lowest (4.5 wt. %). The crystallite size of all involved phases lies above nanoscale. The images obtained by SEM reveal the spherical shape of powder particles; their hierarchical type of structure is clearly seen. The greater particles contain smaller ones. The shell of spherical particles is composed of distinct patches. Practical implications: Performed studies enable the detrmination of the relation between the microstructure of commercial powders and their utilizable properties. Originality/value: The applied, different methods of structure analysis appeared to be very useful in the microstructure analysis of complex, multiphase material.

Słowa kluczowe

EN

X-ray phase analysis; electron microscopy; Rietveld method; Toraya procedure; ceramics

PL

rentgenowska analiza fazowa; mikroskopia elektronowa; metoda Rietvelda; procedura Torayi; ceramika

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 18, nr 1-2
• Strony: 259--262
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Dercz G.

• Institute of Materials Science, University of Silesia, ul. Bankowa 12, 40-007 Katowice, Poland

autor

Prusik K.

• Institute of Materials Science, University of Silesia, ul. Bankowa 12, 40-007 Katowice, Poland

autor

Pająk L.

• Institute of Materials Science, University of Silesia, ul. Bankowa 12, 40-007 Katowice, Poland

Bibliografia

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