Role of the monoclinic phase on the thermal and electrical performance of MgPSZ

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abstract

MgO-doped partially stabilized zirconia (xMgPSZ, with x = 8 or 10 mol%) materials sintered at 1700 degrees C, were characterized with respect to structure, microstructure, thermal expansion and electrical performance. The monoclinic (M) phase content is almost vestigial in 10MgPSZ, unlike in 8MgPSZ. Combined powder XRD and customized thermal expansion data analysis, allowed a separation between M and tetragonal (T) particles, outside or imbedded in cubic grains. Combination of thermal expansion and impedance spectroscopy data provided novel insights on the totally distinct roles of fine and dispersed T or M particles within the PSZ cubic matrix grains.

subject category

Materials Science

authors

Starykevich, M; Rondao, AIB; Grilo, JPF; Marques, FMB

our authors

foto Ana Inês Batista Lourenço Rondão

Ana Inês Batista Lourenço Rondão

Post-Doc Fellowship
foto Fernando Manuel Bico Marques

Fernando Manuel Bico Marques

Full professor
foto João Grilo

João Grilo

Junior Researcher
foto Maksim Starykevich

Maksim Starykevich

Junior Researcher

Groups

G3 - Electrochemical Materials, Interfaces and Coatings

Projects

Solucao de Engenharia Microestrutural para Aumentar o Transporte Ionico Interfacial (MERIT)

CICECO - Aveiro Institute of Materials (UIDB/50011/2020)

CICECO - Aveiro Institute of Materials (UIDP/50011/2020)

Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)

acknowledgements

This work was funded by projects MERIT (POCI-01-0145FEDER-028612) and CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020 & LA/P/0006/2020, financed by national funds through the FCT/MEC (PIDDAC).

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Publication Details

type
Journal Article
year
2022
journal
MRS COMMUNICATIONS
volume
12
publisher
SPRINGER HEIDELBERG
issn
2159-6859
issue
5
digital object identifier
10.1557/s43579-022-00249-7
web of science article identifier
WOS:000850420300005

Journal Metrics (JCR 2019)

Journal Impact Factor
1.997
Journal Impact Factor (5 yrs)
2.486
category normalized journal percentile
37.42

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