Viscoelastic sigmoid anomalies in BaZrO3–BaTiO3 near phase transformations due to negative stiffness heterogeneity

Abstract

BaZrO3–BaTiO3 ceramics exhibit a shift in transformation temperatures as revealed by dielectric and viscoelastic spectroscopy; a phase diagram has been established. Sigmoid anomalies in Poisson’s ratio and bulk modulus during the ferroelastic transitions were observed in doped materials, which are not predicted by standard theories for phase transformations… (More)

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@inproceedings{Dong2011ViscoelasticSA, title={Viscoelastic sigmoid anomalies in BaZrO3–BaTiO3 near phase transformations due to negative stiffness heterogeneity}, author={Liang Dong and Donald S. Stone and Roderic S. Lakes}, year={2011} }