Giant electric field–induced strain in lead-free piezoceramics

G Huangfu, K Zeng, B Wang, J Wang, Z Fu, F Xu… - Science, 2022 - science.org
Piezoelectric actuators are indispensable over a wide range of industries for their fast
response and precise displacement. Most commercial piezoelectric actuators contain lead …

A comprehensive study of the phase diagram of KxNa1− xNbO3

DW Baker, PA Thomas, N Zhang, AM Glazer - Applied Physics Letters, 2009 - pubs.aip.org
The phase diagram of lead-free piezoelectric K x Na 1− x NbO 3 has been studied, with
particular focus on the proposed morphotropic phase boundaries, by powder and single …

Recent developments and future perspectives of lead-free ferroelectrics

RA Eichel, H Kungl - Functional Materials Letters, 2010 - World Scientific
Lead-free ferroelectric materials are currently subject to extensive research activities owing
to environmental concerns and corresponding legislation which point to substitute lead …

Large piezoelectric strain with superior thermal stability and excellent fatigue resistance of lead-free potassium sodium niobate-based grain orientation-controlled …

Y Quan, W Ren, G Niu, L Wang, J Zhao… - … applied materials & …, 2018 - ACS Publications
Environment-friendly lead-free piezoelectric materials with high piezoelectric response and
high stability in a wide temperature range are urgently needed for various applications. In …

Top-Seeded Solution Growth and Properties of K1–xNaxNbO3 Crystals

H Tian, C Hu, X Meng, P Tan, Z Zhou, J Li… - Crystal Growth & …, 2015 - ACS Publications
A series of large-sized (maximum 16× 16× 20 mm3), high-quality K1–x Na x NbO3 (x=
0.118, 0.378, 0.462, 0.545, and 0.666) single crystals were successfully cultivated using the …

Influence of the BaTiO3 addition to K0. 5Na0. 5NbO3 lead-free ceramics on the vacancy-like defect structure and dielectric properties

AP Espinosa, L Ramajo, F Rubio-Marcos… - Journal of the European …, 2021 - Elsevier
A study on the induced changes in the vacancy-like defect structure and the dielectric
properties of K 0.5 Na 0.5 NbO 3 ceramics by the addition of different amounts, between 0 …

Mode-crystallography analysis of the crystal structures and the low-and high-temperature phase transitions in Na0. 5K0. 5NbO3

B Orayech, A Faik, GA López, O Fabelo… - Journal of Applied …, 2015 - journals.iucr.org
Na0. 5K0. 5NbO3 has been synthesized by the conventional solid-state reaction process.
The crystal structures and phase transitions, at low and high temperature, determined from …

Young's modulus and dam** of partially sintered potassium sodium niobate (KNN) ceramics and its temperature dependence determined via the impulse excitation …

S Hříbalová, L Kotrbová, E Gregorová… - Journal of the European …, 2024 - Elsevier
Potassium sodium niobate (KNN) is suitable for the preparation of lead-free piezoelectric
ceramics, and thus the elastic properties and dam** behavior should be reliably known for …

Influence of secondary phase on polymorphic phase transition in Li-doped KNN lead-free ceramics

Z Fu, J Yang, P Lu, L Zhang, H Yao, F Xu, Y Li - Ceramics International, 2017 - Elsevier
Shifting polymorphic phase transition (PPT) to room temperatures in Li-doped KNN (KNLN)
can greatly increase its piezoelectric constant. However, pure phase KNLN ceramics could …

Structural evolution of Na0. 5K0. 5NbO3 at high temperatures

N Ishizawa, J Wang, T Sakakura, Y Inagaki… - Journal of Solid State …, 2010 - Elsevier
Changes in structure and dielectric properties at elevated temperatures have been
investigated on single-crystals of sodium potassium niobate, Na0. 5K0. 5NbO3, grown by …