Effect of Nb doping on fatigue in lead zirconate titanate

We investigated the effect of Nb doping on fatigue in lead zirconate titanate (PZT), using the discrete variational Xα cluster method. From our calculation results, we conclude that Nb-doped PZT (PZTN) is less susceptible to fatigue than PZT because electrons released from oxygen vacancies occupy th...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 36; no. 1A; pp. 226 - 227
Main Authors MIURA, K, TANAKA, M
Format Journal Article
LanguageEnglish
Published Tokyo Japanese journal of applied physics 1997
Subjects
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Fatigue, brittleness, fracture, and cracks
Mechanical and acoustical properties of condensed matter
Mechanical properties of solids
Physics
Electronic structure
Variational methods
Theoretical study
Doped materials
Xalpha method
Fatigue
Niobium additions
PZT
Energy-level density
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Summary:We investigated the effect of Nb doping on fatigue in lead zirconate titanate (PZT), using the discrete variational Xα cluster method. From our calculation results, we conclude that Nb-doped PZT (PZTN) is less susceptible to fatigue than PZT because electrons released from oxygen vacancies occupy the Nb 4 d states. This is consistent with our previous calculations; the effect of Nb doping on fatigue in PZT is the same as that of La doping on fatigue in PZT.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.36.226