In-situ irradiation of Ca_1-xLa_2/3xTiO₃ defect perovskites: The role of vacancies in recovery

Whittle, Karl R ORCID: 0000-0002-8000-0857, de los Reyes, Massey, Aughterson, Robert D, Blackford, Mark G, Smith, Katherine L, Baldo, Peter, Ryan, Edward P, Zaluzec, Nestor J and Lumpkin, Gregory R (2018) In-situ irradiation of Ca_1-xLa_2/3xTiO₃ defect perovskites: The role of vacancies in recovery. MATERIALIA, 3. pp. 186-191.

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Abstract

Samples based on the general composition Ca1-xLa2/3xTiO3 have been irradiated in-situ, at the IVEM-TANDEM facility, through the crystalline-amorphous transition with 1 MeV Kr ions, across a range of temperatures. The results suggest that there is a correlation between the availability of vacancies to aid recovery, with enhanced recovery at low values of x, with the lowest value for the critical temperature of amorphisation (Tc) being found between x = 0.2 and x = 0.3, to be ∼250 K. However, at higher values of x, vacancies are detrimental to rapid recovery, with an increase in Tc to over 700 K for x = 0.8. These changes are seemingly independent of the observed change in crystal symmetry, which has been previously found for these compositions.

Item Type:	Article
Uncontrolled Keywords:	Nuclear materials, Irradiation, Radiation damage, Perovskites, Ion beam, In situ
Depositing User:	Symplectic Admin
Date Deposited:	05 Sep 2018 13:01
Last Modified:	18 Oct 2023 01:22
DOI:	10.1016/j.mtla.2018.08.016
Open Access URL:	https://doi.org/10.1016/j.mtla.2018.08.016
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3025896