GRK 2495 Invited Talk: Prof. Barbara Malič (Jožef Stefan Institute, Slovenija) - Processing Challenges with Alkali-Niobate Based Piezoelectric Ceramics

May 06
6. May 2021 14:00 - 15:00 (GRK2495)

Sodium potassium niobate (K0.5Na0.5NbO3, KNN) based ceramics are one of the groups of lead-free piezoelectrics, which have been intensively studied as possible replacements for highly efficient lead-based perovskite-oxide piezoelectrics. The enhancement of piezoelectric properties is mainly designed by phase boundary engineering. From the chemistry viewpoint such approach results in formulations which contain different cations occupying the same lattice sites, consequently reaching a homogeneous distribution of constituent ions may be difficult. In the lecture solid-state synthesis and sintering of KNN-based ceramics are reviewed and supported by selected case-studies.

Zoom: ID: 918 7326 3243 PW: GRK2495