Influence of Homogenization and Micro/Nano Source of Starting Powders on Format Ion of the Single YAP Phase

• Autorzy: Michalik D. , Pawlik T. , Plewa J. , Sopicka-Lizer M.

Identyfikatory

DOI

10.1515/amm-2016-0281

• Języki publikacji: EN

Abstrakty

EN

Manufacturing high purity polycrystalline YAlO₃ (YAP) ceramics could replace monocrystalline YAP thus recently it is an interesting task for low cost producers of scintillators. The paper presents influence of different source of initial oxide powders (micro/nano powders of Y₂O₃ and Al₂O₃) and the method of their homogenization on the formation of a YAP phase. The solid state reaction method was used to prepare YAP powder or ceramic pellets. After preheating, all samples in the form of powders and pellets were heat-treated in the temperature range of 1050-1650 °C. DTA method was applied for examination of the phase crystallization in the tested system. X-ray diffraction method (XRD) was used for characterization of the phase composition. X-ray microanalysis (EDS) was used to control homogeneity in the small areas. Morphology of the resultant samples are presented on SEM pictures. The results show a significant influence of the starting powders on the homogeneity, purity and temperature of formation of the main phase.

Słowa kluczowe

EN

YAP; scintillators; synthesis; polycrystalline ceramics

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2016
• Tom: Vol. 61, iss. 4
• Strony: 1753--1760
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr., wzory

Twórcy

autor

Michalik D.

• Silesian University of Technology, 8 Krasinskiego Str., 40-019 Katowice, Poland

autor

Pawlik T.

• Silesian University of Technology, 8 Krasinskiego Str., 40-019 Katowice, Poland

autor

Plewa J.

• University of Applied Science, Stegerwaldstr. 39, 48-565 Steinfurt, Germany

autor

Sopicka-Lizer M.

• Silesian University of Technology, 8 Krasinskiego Str., 40-019 Katowice, Poland

Bibliografia

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Uwagi

EN

The financial support by NCN under the project No: UMO-2013.09T>'ST8'03976 is gratefully acknowledged.