Published December 1, 2014 | Version v1
Journal article Metadata-only

In situ TEM observation of domain switch in LaNbO4 added to NiO–Y2O3 stabilized ZrO2 ceramic composite

Creators

  • 1. College of Sciences, Wuhan University of Science and Technology, 947 He Ping Avenue, Wuhan, Hubei 430080 (China)
  • 2. Center for Fuel Cell Innovation, State Key Lab for Material Processing and Tooling Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luo Yu Road, Wuhan, Hubei 430074 (China)

Description

The morphology of domain structure in LaNbO4 added to YSZ–NiO composite was examined using a focused ion beam prepared specimen in a transmission electron microscope with a straining stage. It is confirmed for the first time that the morphology is changed under load through domain boundary movement. The driving force for this domain switch is the difference in Gibbs free energy between domains with different crystallographic orientations. This domain switch improves toughness by dissipating stress build-up at the crack tips

Availability note (English)

Available from http://dx.doi.org/10.1016/j.scriptamat.2014.08.013

Additional details

Identifiers

DOI
10.1016/j.scriptamat.2014.08.013;
PII
S1359-6462(14)00326-1;

Publishing Information

Journal Title
Scripta Materialia
Journal Volume
92
Journal Page Range
p. 55-58
ISSN
1359-6462
CODEN
SCMAF7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47011105
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CERAMICS; CRACKS; CRYSTALLOGRAPHY; DOMAIN STRUCTURE; FREE ENTHALPY; ION BEAMS; NICKEL OXIDES; STRAINS; STRESSES; TRANSMISSION ELECTRON MICROSCOPY; YTTRIUM OXIDES; ZIRCONIUM OXIDES
Descriptors DEC
BEAMS; CHALCOGENIDES; ELECTRON MICROSCOPY; ENERGY; MICROSCOPY; NICKEL COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; ZIRCONIUM COMPOUNDS

Optional Information

Copyright
Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.