Doping effects of Li-Sb content on the structure and electrical properties of [(Na 0.5K 0.5) 1 - X(Li) x(Sb) x(Nb) 1 - xO 3] lead-free piezoelectric ceramics

Rashmi Rani; Seema Sharma; Radheshyam Rai; Andrei L. Kholkin

doi:10.1016/j.materresbull.2011.11.003

Doping effects of Li-Sb content on the structure and electrical properties of [(Na _0.5K _0.5) _{1 - X}(Li) _x(Sb) _x(Nb) _{1 - x}O ₃] lead-free piezoelectric ceramics

Rashmi Rani
, Seema Sharma
, Radheshyam Rai^*
, Andrei L. Kholkin

^*Corresponding author for this work

A.N. College
University of Aveiro

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

Ceramic samples of [Na _0.5K _0.5] _{1 - x}(Li) _x(Sb) _x(Nb) _{1 - x}O ₃ (NKNLS) (x = 0.04-0.06) were prepared by high temperature solid-state reaction method. X-ray diffraction analysis of the powder samples suggests the formation of a single-phase material with transformation from orthorhombic to tetragonal crystal structure with increase in Sb content. Dielectric studies show a diffuse phase transition about 100 °C and another phase ferroelectric-paraelectric transition at 330 °C. Polarization vs. electric field (P-E) hysteresis studies show maximum remanent polarization (Pr ∼ 0.66 C m ^-2) for composition x = 0.05. AC conductivity in the compound increases with increase in temperature which may be attributed due to oxygen vacancies and show negative temperature coefficient of resistance (NTCR) effect.

Original language	English
Pages (from-to)	381-386
Number of pages	6
Journal	Materials Research Bulletin
Volume	47
Issue number	2
DOIs	https://doi.org/10.1016/j.materresbull.2011.11.003
Publication status	Published - Feb 2012
Externally published	Yes

Keywords

A. Ceramics
C. X-ray diffraction
D. Dielectric properties
D. Electrical properties
D. Piezoelectricity

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10.1016/j.materresbull.2011.11.003

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title = "Doping effects of Li-Sb content on the structure and electrical properties of [(Na 0.5K 0.5) 1 - X(Li) x(Sb) x(Nb) 1 - xO 3] lead-free piezoelectric ceramics",

abstract = "Ceramic samples of [Na 0.5K 0.5] 1 - x(Li) x(Sb) x(Nb) 1 - xO 3 (NKNLS) (x = 0.04-0.06) were prepared by high temperature solid-state reaction method. X-ray diffraction analysis of the powder samples suggests the formation of a single-phase material with transformation from orthorhombic to tetragonal crystal structure with increase in Sb content. Dielectric studies show a diffuse phase transition about 100 °C and another phase ferroelectric-paraelectric transition at 330 °C. Polarization vs. electric field (P-E) hysteresis studies show maximum remanent polarization (Pr ∼ 0.66 C m -2) for composition x = 0.05. AC conductivity in the compound increases with increase in temperature which may be attributed due to oxygen vacancies and show negative temperature coefficient of resistance (NTCR) effect.",

keywords = "A. Ceramics, C. X-ray diffraction, D. Dielectric properties, D. Electrical properties, D. Piezoelectricity",

author = "Rashmi Rani and Seema Sharma and Radheshyam Rai and Kholkin, \{Andrei L.\}",

year = "2012",

month = feb,

doi = "10.1016/j.materresbull.2011.11.003",

language = "English",

volume = "47",

pages = "381--386",

journal = "Materials Research Bulletin",

issn = "0025-5408",

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T1 - Doping effects of Li-Sb content on the structure and electrical properties of [(Na 0.5K 0.5) 1 - X(Li) x(Sb) x(Nb) 1 - xO 3] lead-free piezoelectric ceramics

AU - Rani, Rashmi

AU - Sharma, Seema

AU - Rai, Radheshyam

AU - Kholkin, Andrei L.

PY - 2012/2

Y1 - 2012/2

N2 - Ceramic samples of [Na 0.5K 0.5] 1 - x(Li) x(Sb) x(Nb) 1 - xO 3 (NKNLS) (x = 0.04-0.06) were prepared by high temperature solid-state reaction method. X-ray diffraction analysis of the powder samples suggests the formation of a single-phase material with transformation from orthorhombic to tetragonal crystal structure with increase in Sb content. Dielectric studies show a diffuse phase transition about 100 °C and another phase ferroelectric-paraelectric transition at 330 °C. Polarization vs. electric field (P-E) hysteresis studies show maximum remanent polarization (Pr ∼ 0.66 C m -2) for composition x = 0.05. AC conductivity in the compound increases with increase in temperature which may be attributed due to oxygen vacancies and show negative temperature coefficient of resistance (NTCR) effect.

AB - Ceramic samples of [Na 0.5K 0.5] 1 - x(Li) x(Sb) x(Nb) 1 - xO 3 (NKNLS) (x = 0.04-0.06) were prepared by high temperature solid-state reaction method. X-ray diffraction analysis of the powder samples suggests the formation of a single-phase material with transformation from orthorhombic to tetragonal crystal structure with increase in Sb content. Dielectric studies show a diffuse phase transition about 100 °C and another phase ferroelectric-paraelectric transition at 330 °C. Polarization vs. electric field (P-E) hysteresis studies show maximum remanent polarization (Pr ∼ 0.66 C m -2) for composition x = 0.05. AC conductivity in the compound increases with increase in temperature which may be attributed due to oxygen vacancies and show negative temperature coefficient of resistance (NTCR) effect.

KW - A. Ceramics

KW - C. X-ray diffraction

KW - D. Dielectric properties

KW - D. Electrical properties

KW - D. Piezoelectricity

UR - https://www.scopus.com/pages/publications/84855688346

U2 - 10.1016/j.materresbull.2011.11.003

DO - 10.1016/j.materresbull.2011.11.003

M3 - Article

AN - SCOPUS:84855688346

SN - 0025-5408

VL - 47

SP - 381

EP - 386

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 2

ER -

Doping effects of Li-Sb content on the structure and electrical properties of [(Na _0.5K _0.5) _{1 - X}(Li) _x(Sb) _x(Nb) _{1 - x}O ₃] lead-free piezoelectric ceramics

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