Title

Temperature And Stress Induced Changes Of The Vibrational Response Of Cubic And Rhombohedral 10 Mol%Sc2O3-1 Mol%Ceo2-Zro2 Ceramics

Keywords

Cubic phase; Micro-Raman spectroscopy; Rhombohedral phase; Stress; Vickers indentation; Zirconia

Abstract

The vibration response of cubic and rhombohedral (β) 10 mol%Sc2O3-1 mol%CeO2-ZrO2 (Sc0.1Ce0.01ZrO2) both at room and high-temperatures is reported. The in situ heating experiments and ex situ indentation experiments were performed to characterize the vibrational behavior of these important materials. A temperature and stress-assisted phase transition from cubic to rhombohedral phase was detected during in situ Raman spectroscopy experiments. While heating and indentation experiments performed separately did not cause the transition of the cubic phase into the rhombohedral structure under the performed experimental conditions and only broadened or strained peaks of the cubic phase could be detected, the heating of the indented (strained) surface leaded to the formation of the rhombohedral Sc0.1Ce0.01ZrO2. Both temperature range and strained zone were estimated by in situ heating and 2D mapping, where a formation of rhombohedral or retention of cubic phase has been promoted. © 2009 Elsevier B.V. All rights reserved.

Publication Date

4-15-2010

Publication Title

Journal of Power Sources

Volume

195

Issue

8

Number of Pages

2301-2309

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.jpowsour.2009.10.060

Socpus ID

74249122729 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/74249122729

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