Recent Developments in (K, Na)NbO₃-Based Lead-Free Piezoceramics.

ABSTRACT: (K_0.5Na_0.5)NbO₃ (KNN)-based ceramics have been extensively investigated as replacements for Pb(Zr, Ti)O₃-based ceramics. KNN-based ceramics exhibit an orthorhombic structure at room temperature and a rhombohedral-orthorhombic (R-O) phase transition temperature (T_R-O), orthorhombic-tetragonal (O-T) phase transition temperature (T_O-T), and Curie temperature of -110, 190, and 420 °C, respectively. Forming KNN-based ceramics with a multistructure that can assist in domain rotation is one technique for enhancing their piezoelectric properties. This review investigates and introduces KNN-based ceramics with various multistructures. A reactive-templated grain growth method that aligns the grains of piezoceramics in a

SUBMITTER: Lee GS 

PROVIDER: S-EPMC10972221 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature