Effect of mechanical activation on the structure and ferroelectric property of Na0.5K0.5NbO3

Laijun Liu; Meixia Wu; Yanmin Huang; Liang Fang; Huiqing Fan; Hichem Dammak; Mai Pham Thi

doi:10.1016/j.materresbull.2011.05.001

Effect of mechanical activation on the structure and ferroelectric property of Na_0.5K_0.5NbO₃

Laijun Liu, Meixia Wu, Yanmin Huang, Liang Fang, Huiqing Fan, Hichem Dammak, Mai Pham Thi

School of Materials Sience and Engineering

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

41 Scopus citations

Abstract

Mechanical activation synthesis of Na_0.5K_0.5NbO ₃ (NKN) was studied in order to explore the effect of mechanochemical interaction on the crystal structure and microstructure of NKN powder and ceramic. A single phase, nanocrystalline perovskite NKN powder has been derived from a mixture of oxide/carbonates via a mechanical activation route with heating at an elevated temperature. With the increase in milling time, the distortion of orthorhombic structure for NKN was weakened and the cell volume of NKN powder slightly decreased. The relative density and remnant polarization of NKN ceramics were improved, and the grain became uniform and smaller for prolonged milling NKN. The developed method is well suited for the production of NKN nanocrystallite powders and refined grain NKN ceramics.

Original language	English
Pages (from-to)	1467-1472
Number of pages	6
Journal	Materials Research Bulletin
Volume	46
Issue number	9
DOIs	https://doi.org/10.1016/j.materresbull.2011.05.001
State	Published - Sep 2011

Keywords

A. Ceramics
D. Crystal structure
D. Defects
D. Ferroelectricity

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10.1016/j.materresbull.2011.05.001

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title = "Effect of mechanical activation on the structure and ferroelectric property of Na0.5K0.5NbO3",

abstract = "Mechanical activation synthesis of Na0.5K0.5NbO 3 (NKN) was studied in order to explore the effect of mechanochemical interaction on the crystal structure and microstructure of NKN powder and ceramic. A single phase, nanocrystalline perovskite NKN powder has been derived from a mixture of oxide/carbonates via a mechanical activation route with heating at an elevated temperature. With the increase in milling time, the distortion of orthorhombic structure for NKN was weakened and the cell volume of NKN powder slightly decreased. The relative density and remnant polarization of NKN ceramics were improved, and the grain became uniform and smaller for prolonged milling NKN. The developed method is well suited for the production of NKN nanocrystallite powders and refined grain NKN ceramics.",

keywords = "A. Ceramics, D. Crystal structure, D. Defects, D. Ferroelectricity",

author = "Laijun Liu and Meixia Wu and Yanmin Huang and Liang Fang and Huiqing Fan and Hichem Dammak and Thi, {Mai Pham}",

year = "2011",

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doi = "10.1016/j.materresbull.2011.05.001",

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TY - JOUR

T1 - Effect of mechanical activation on the structure and ferroelectric property of Na0.5K0.5NbO3

AU - Liu, Laijun

AU - Wu, Meixia

AU - Huang, Yanmin

AU - Fang, Liang

AU - Fan, Huiqing

AU - Dammak, Hichem

AU - Thi, Mai Pham

PY - 2011/9

Y1 - 2011/9

N2 - Mechanical activation synthesis of Na0.5K0.5NbO 3 (NKN) was studied in order to explore the effect of mechanochemical interaction on the crystal structure and microstructure of NKN powder and ceramic. A single phase, nanocrystalline perovskite NKN powder has been derived from a mixture of oxide/carbonates via a mechanical activation route with heating at an elevated temperature. With the increase in milling time, the distortion of orthorhombic structure for NKN was weakened and the cell volume of NKN powder slightly decreased. The relative density and remnant polarization of NKN ceramics were improved, and the grain became uniform and smaller for prolonged milling NKN. The developed method is well suited for the production of NKN nanocrystallite powders and refined grain NKN ceramics.

AB - Mechanical activation synthesis of Na0.5K0.5NbO 3 (NKN) was studied in order to explore the effect of mechanochemical interaction on the crystal structure and microstructure of NKN powder and ceramic. A single phase, nanocrystalline perovskite NKN powder has been derived from a mixture of oxide/carbonates via a mechanical activation route with heating at an elevated temperature. With the increase in milling time, the distortion of orthorhombic structure for NKN was weakened and the cell volume of NKN powder slightly decreased. The relative density and remnant polarization of NKN ceramics were improved, and the grain became uniform and smaller for prolonged milling NKN. The developed method is well suited for the production of NKN nanocrystallite powders and refined grain NKN ceramics.

KW - A. Ceramics

KW - D. Crystal structure

KW - D. Defects

KW - D. Ferroelectricity

UR - http://www.scopus.com/inward/record.url?scp=80955177581&partnerID=8YFLogxK

U2 - 10.1016/j.materresbull.2011.05.001

DO - 10.1016/j.materresbull.2011.05.001

M3 - 文章

AN - SCOPUS:80955177581

SN - 0025-5408

VL - 46

SP - 1467

EP - 1472

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 9

ER -

Effect of mechanical activation on the structure and ferroelectric property of Na_0.5K_0.5NbO₃

Abstract

Keywords

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