Effects of Sintering Temperature on Grain Growth and on the Dielectric and the Piezoelectric Properties of Li-and Ta-Modified (Na 0.50 K 0.47 Li 0.03)(Nb 0.8 Ta 0.2) …

JS Kim, HS Lee - Journal of the Korean Physical Society, 2019 - Springer
The crystalline grain growth and the dielectric and the piezoelectric properties of Li-and Ta-
modified (Na 0.05 K 0.47 Li 0.03)(Nb 0.8 Ta 0.2) O 3 (NKLNT) ceramics were investigated …

Enhancement of Dielectric and Piezoelectric Properties of Na0.53K0.47)(Nb0.55Ta0.45)O3 Ceramics with Na/K Ion Excess in A-site

SY Lim, JS Kim, MS Kim, TK Song, HS Lee, WJ Kim… - …, 2015 - Taylor & Francis
Lead-free Ta-modified (Na0. 53+ x K0. 47+ x)(Nb0. 55Ta0. 45) O3 ceramics (NKNT, x=−
0.01,− 0.005, 0, 0.005 and 0.01) were prepared by conventional solid-state reaction. The …

Dielectric Response and Ferroelectric Polarization of Piezoelectric Enhanced (Na0.535K0.475)(Nb0.55Ta0.45)O3 Ceramics at the Orthorhombic-Tetragonal …

JS Kim, HS Lee - Journal of the Korean Physical Society, 2020 - Springer
Abstract The piezoelectric-enhanced (Na 0.535 K 0.475)(Nb 0.55 Ta 0.45) O 3 (NKNT)
ceramics with Na/K excess and Ta substitution were prepared near the polymorphic phase …

[PDF][PDF] Dielectric Dispersion and Ferroelectric PE Hysteresis Loop of Lead-Free Ta-Substituted (Na K )(Nb Ta ) O Ceramics

JS Kim, HS LEE, LEE Kwang-Sei - 2017 - researchgate.net
Ta-substituted (Na0. 53K0. 47)(Nb0. 55Ta0. 45) O3 (NKNT) ceramics were prepared by
using a solidstate reaction method. We studied the dielectric response and the ferroelectric …

[PDF][PDF] Temperature-Dependent Raman Spectroscopy of Lead-Free (Na0. 5K0. 5) NbO3 Ceramics

HS Lee, HE Kim, JS Kim, KS Lee - 2017 - researchgate.net
We have synthesized lead-free (Na0. 5K0. 5) NbO3 (NKN) ceramics and used Raman
spectroscopy to investigate the temperature dependences of the internal vibrational mode …