A combined structural, microstructural and dilatometric analysis of MgPSZ
authors Rondao, AIB; Soares, MR; Tobaldi, DM; Ferreira, A; Labrincha, JA; Marques, FMB
nationality International
journal JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
author keywords MgPSZ; Zirconia; Structural characterization; Thermal expansion; Microstructure
keywords PARTIALLY-STABILIZED ZIRCONIA; MG-PSZ; THERMAL-EXPANSION; SHOCK RESISTANCE; TETRAGONAL PHASE; ZRO2-MGO SYSTEM; TRANSFORMATION; KINETICS; BEHAVIOR; STEEL
abstract MgO-doped partially stabilized zirconia (MgPSZ) is a ceramic where three phases (cubic, tetragonal and monoclinic zirconia) might coexist due to non-equilibrium conditions and proper quantification of phase content is difficult. Here, a few selected compositions (in the 7-10 mol% MgO range) and firing profiles were studied in order to cover several phase compositions and microstructural features. An original attempt is made to correlate data obtained by X-ray diffraction (XRD), dilatometry (DIL) and scanning electron microscopy (SEM). Distinct software packages used in the analysis of XRD patterns of different samples confirmed the shortcomings of the assessment of phase content in sintered bodies while proper handling of DIL data provided complementary quantitative information on their phase content. The suggested procedure can be further used to obtain a subtle insight on phase development with temperature, subject of major relevance with respect to tuning of the mechano-thermal behavior of these ceramics.
publisher ELSEVIER SCI LTD
issn 0955-2219
year published 2018
volume 38
issue 4
beginning page 1769
ending page 1777
digital object identifier (doi) 10.1016/j.jeurceramsoc.2017.12.027
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000424716700095
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journal impact factor 3.794
5 year journal impact factor 3.536
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