Low temperature spark plasma sintering of efficient (K,Na)NbO3 ceramics

被引：3

作者：

Chavarria, Christopher Castro ^{[1
,2
]}

Debeda, Helene ^{[1
]}

Plano, Bernard ^{[1
]}

Teule-Gay, Lionel ^{[2
]}

Michau, Dominique ^{[2
]}

Fourcade, Sebastien ^{[2
]}

Maglione, Mario ^{[2
]}

Chung, U. -Chan ^{[2
]}

Elissalde, Catherine ^{[2
]}

机构：

[1] Univ Bordeaux, IMS, Bordeaux INP, CNRS,UMR 5218, F-33405 Talence, France

[2] Univ Bordeaux, Bordeaux INP, CNRS, ICMCB UMR 5026, F-33600 Pessac, France

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2024年 / 44卷 / 06期

关键词：

Potassium Sodium Niobate; KNN; Grain size effect; Dielectric spectroscopy; Spark plasma sintering; FREE PIEZOELECTRIC CERAMICS; MICROSTRUCTURE;

D O I：

10.1016/j.jeurceramsoc.2024.01.039

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This study investigates the sintering optimization and characterization of (K0.5,Na0.5)NbO3 (KNN) ceramics using spark plasma sintering (SPS) at low temperatures. The influence of sintering temperature on crystal structure, microstructure, and dielectric properties is explored. KNN ceramics were sintered as low as 400 degrees C and exhibit a relative permittivity (epsilon r) of 740 and a low dissipation factor (tan(delta)) of 0.02 at room temperature. These findings highlight the potential of SPS-sintered KNN ceramics at low temperatures for applications requiring high permittivity and low dielectric losses.

引用

页码：4319 / 4322

页数：4

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