Temperature stability of perovskite-structured lead-free piezoceramics: Evaluation methods, improvement strategies, and future perspectives

X Lv, X Wang, Y Ma, X Zhang, J Wu - Materials Science and Engineering …, 2024 - Elsevier
Due to ever-increasing environmental concerns, lead-free piezoceramics have been studied
for more than half a century with the purpose of replacing toxic lead-based counterparts. A …

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

GS Lee, JS Kim, SH Kim, S Kwak, B Kim, IS Kim… - Micromachines, 2024 - mdpi.com
(K0. 5Na0. 5) NbO3 (KNN)-based ceramics have been extensively investigated as
replacements for Pb (Zr, Ti) O3-based ceramics. KNN-based ceramics exhibit an …

An easy and effective strategy to design a composition in the vicinity of triple point for high energy density in dielectric ceramics

A Rahman, A Xie, T Li, Y Zhang, M Habib… - Chemical Engineering …, 2024 - Elsevier
The development of high energy density in dielectric ceramics has become one of the most
cutting-edge research topics for high pulse power technology applications owing to their …

Enhanced piezoelectricity of [001]-textured (K, Na)(Nb, Sb) O 3–(Bi, Ag) ZrO 3 ceramics using Na (Nb 0.9 Sb 0.1) O 3 templates at low temperature

SH Kim, GS Lee, JS Kim, S Kwak, BJ Min… - Journal of Materials …, 2024 - pubs.rsc.org
In this study, 2.0 mol% CuO-added 0.96 (K0. 5Na0. 5)(Nb1− zSbz) O3–0.04 (Bi0. 5Ag0. 5)
ZrO3 [CKN (N1− zSz)–BAZ] piezoceramics (0.0≤ z≤ 0.08) were densified at 980° C without …

Investigation of the structural and piezoelectric characteristics of (1-x) Pb (Zr, Ti) O3-xPb (Zn0. 4Ni0. 6) 1/3Nb2/3O3 ceramics with R-PC-T multistructure

GS Lee, JS Kim, SH Kim, S Kwak, BJ Min… - Journal of the European …, 2024 - Elsevier
The structural and various electrical properties of (1-x) Pb (Zr 1-z Ti z) O 3-xPb (Zn 0.4 Ni
0.6) 1/3 Nb 2/3 O 3 [(1-x) P (Z 1-z T z)-xPZNN] piezoceramics have been systematically …

Enhancing the thermal stability of the dielectric property by tilting the NbO6 octahedra in (Na1-zKz) NbO3-SrTiO3 ceramics

S Kwak, IS Kim, BJ Min, GS Lee, BJ Kim, JS Kim… - Ceramics …, 2024 - Elsevier
x)(Na 0.2 K 0.8) NbO 3-xSrTiO 3 [(1-x)(N 0.2 K 0.8) N-xST] ceramics with a homogeneous
perovskite structure were well-sintered in the range of 1080–1160° C. The 0.9 (N 0.2 K 0.8) …

Outstanding temperature-and electric field-independent dielectric characteristics of KNbO3-BaTiO3 ceramic for X9R MLCC application

IS Kim, S Kwak, BJ Min, B Kim, GS Lee, JW Jang… - Journal of Alloys and …, 2024 - Elsevier
Abstract (1− z) KNbO 3–zBaTiO 3 [(1− z) KN–zBT] ceramics were densified at 1040–1080°
C. As z increased, the Curie temperature and the orthorhombic–tetragonal phase transition …

Microstructure evolution and properties of textured, Pb (Zr1/2Ti1/2) O3-Pb (Zn1/3Nb2/3) O3–Pb (Ni1/3Nb2/3) O3 ceramics with plate-like BaZr0. 1Ti0. 9O3 template

X Feng, L Li, X Xu, L Zhou, H Wang, B Yan, M Lu… - Journal of Alloys and …, 2024 - Elsevier
C-textured ceramics of 0.83 Pb (Zr 1/2 Ti 1/2) O 3-0.11 Pb (Zn 1/3 Nb 2/3) O 3-0.06 Pb (Ni
1/3 Nb 2/3) O 3 with 10 wt% plate-like BaZr 0.1 Ti 0.9 O 3 templates (PZNNT-BZT) were …

Effect of crystal structure on the improvement of the piezoelectric properties for [001]-textured PZT-PNN piezoceramics

JS Kim, GS Lee, SH Kim, S Kwak, S Nahm - Ceramics International, 2024 - Elsevier
Ceramics with a coexisting rhombohedral-tetragonal (RT) structure, 0.53 Pb (Zr 1-x Ti x) O 3-
0.47 Pb (Ni 1/3 Nb 2/3) O 3 [CP (Z 1-x T x)-PNN](x= 0.57 and 0.66) containing 1.0 mol …