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Roman Korobko, Seong K. Kim, Sangtae Kim, Sidney R. Cohen, Ellen Wachtel and Igor Lubomirsky The Role of Point Defects in the Mechanical Behavior of Doped Ceria Probed by Nanoindentation Advanced Functional Materials 23

Article first published online: 2 JUL 2013 | DOI: 10.1002/adfm.201301536

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Nanoindentation measurements performed on ceria doped with Pr4+, Pr3+, Lu3+, Gd3+ demonstrate that the rearrangement of point defects may be a major source of creep at room temperature. Nanoindentation is shown to be an effective technique for identifying materials with labile point defects, which may point to practical functionality such as high ionic conductivity, large electrostriction, and inelasticity.

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