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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-2d2fc90d-9e72-43e1-81f5-9bbcd6e612ec

Czasopismo

Archives of Metallurgy and Materials

Tytuł artykułu

Synthesis, Characterization and Thermal Diffusivity of Holmium and Praseodymium Zirconates

Autorzy Stopyra, M.  Niemiec, D.  Moskal, G. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
Abstrakty
EN A2B2O7oxides with pyrochlore or defected fluorite structure are among the most promising candidates for insulation layer material in thermal barrier coatings. The present paper presents the procedure of synthesis of holmium zirconate Ho2Zr2O7and praseodymium zirconate Pr2Zr2O7via Polymerized-Complex Method (PCM). Thermal analysis of precursor revealed that after calcination at relatively low temperature (700°C) fine-crystalline, single-phase material is obtained. Thermal diffusivity was measured in temperature range 25-200°C, Ho2Zr2O7exhibits lower thermal diffusivity than Pr2Zr2O7. Additionally, PrHoZr2O7was synthesized. The powder in as-calcined condition is single-phase, but during the sintering decomposition of solid solution took place and Ho-rich phase precipitated. This material exhibited the best insulating properties among the tested ones.
Słowa kluczowe
EN pyrochlores   synthesis   polymerized-complex method   holmium zirconate   praseodymium zirconate   thermal diffusivity  
Wydawca Polish Academy of Sciences, Committee of Metallurgy, Institute of Metallurgy and Materials Science
Czasopismo Archives of Metallurgy and Materials
Rocznik 2016
Tom Vol. 61, iss. 2B
Strony 1249--1254
Opis fizyczny Bibliogr. 25 poz., rys., tab., wykr., wzory
Twórcy
autor Stopyra, M.
  • Silesian University of Technology, Faculty of Materials Engineering and Metallurgy, 8 Krasińskiego Str., 40-019 Katowice, Poland, michal.stopyra@polsl.pl
autor Niemiec, D.
  • Silesian University of Technology, Faculty of Materials Engineering and Metallurgy, 8 Krasińskiego Str., 40-019 Katowice, Poland
autor Moskal, G.
  • Silesian University of Technology, Faculty of Materials Engineering and Metallurgy, 8 Krasińskiego Str., 40-019 Katowice, Poland
Bibliografia
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Uwagi
EN This work was supported by Institute of Materials Science of Silesian University of Technology, as a part of Statutory Research no BK220/RM3/2015 (11/030/BK-15/0025)
PL Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-2d2fc90d-9e72-43e1-81f5-9bbcd6e612ec
Identyfikatory
DOI 10.1515/amm-2016-0206