Published October 2010 | Version v1
Journal article Metadata-only

Dielectric and piezoelectric properties of MnO2-added non-stoichiometric (K0.5Na0.5)0.97(Nb0.96Sb0.04) O3 ceramics

Creators

  • 1. Semyung University, Jechon (Korea, Republic of)
  • 2. Korea Electrotechnology Research Institute, Changwon (Korea, Republic of)

Description

In this study, the non-stoichiometric composition [(K0.5Na0.5)0.97(Nb0.96Sb0.04)] O3 + 0.8 mol% CuO + x mol% MnO2 + 0.2 wt% Ag2O ceramics were fabricated (where x = 0, 0.3, 0.6, and 0.9, respectively). Also, their dielectric and piezoelectric properties were investigated. For 0.6-mol% MnO2-doped [(K0.5Na0.5)0.97(Nb0.96Sb0.04)]O3 (abbreviated as KNNS) ceramics sintered at 1080 .deg. C the bulk density (ρ), the electromechanical coupling coefficient (kp), the mechanical quality factor (Qm), the dielectric constant (εr) and the piezoelectric constant (d33) showed excellent values of 4.453 g/cm3 and 0.438, 545, 404, and 80 pC/N, respectively.

Additional details

Publishing Information

Journal Title
Journal of the Korean Physical Society
Journal Volume
57
Journal Issue
41
Series
10 refs, 8 figs, 1 tab
Journal Page Range
p. 959-962
ISSN
0374-4884

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
Korea, Republic of
INIS RN
44096258
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
BULK DENSITY; CERAMICS; COUPLING CONSTANTS; DIELECTRIC PROPERTIES; FABRICATION; MANGANESE OXIDES; PIEZOELECTRICITY; POTASSIUM COMPLEXES; QUALITY FACTOR
Descriptors DEC
ALKALI METAL COMPLEXES; CHALCOGENIDES; COMPLEXES; DENSITY; DIMENSIONLESS NUMBERS; ELECTRICAL PROPERTIES; ELECTRICITY; MANGANESE COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; TRANSITION ELEMENT COMPOUNDS