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Abdullah Riaz

Pseudo-piezoelectricity in calcium titanate and structural changes under electric field

Universität Rostock, 2019

https://doi.org/10.18453/rosdok_id00002598

Abstract: Calcium titanate does not exhibit piezoelectric behaviour. However, in present study such behaviour is observed in calcium titanate prepared by sol-gel synthesis and densified by field assisted sintering. Presumably, the instability of regular TiO6 octahedra results in the off-centering of titanium positions in nanostructured bulk calcium titanate. As a consequence, piezoelectric behavior is observed in calcium titanate which is referred to "pseudo-piezoelectricity". This particular response is of great interest in biomedicine because it can improve osseointegration of implant materials.

doctoral thesis   free access    


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