C-axis oriented β"-alumina ceramics with anisotropic ionic conductivity prepared by spark plasma sintering

被引：31

作者：

Koganei, Kazuto ^{[1
]}

Oyama, Toshihisa ^{[1
]}

Inada, Miki ^{[2
]}

Enomoto, Naoya ^{[2
]}

Hayashi, Katsuro ^{[1
,2
]}

机构：

[1] Tokyo Inst Technol, Ctr Secure Mat, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan

[2] Kyushu Univ, Fac Engn, Dept Appl Chem, Fukuoka 8910395, Japan

来源：

SOLID STATE IONICS | 2014年 / 267卷

基金：

日本学术振兴会;

关键词：

Fast sodium ion conductor; Uniaxial pressure sintering; Ceramic separator; Crystal alignment; Electrochemical impedance spectroscopy; Chemical analysis; SODIUM; BETA''-ALUMINA; ELECTROLYTES;

D O I：

10.1016/j.ssi.2014.09.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-density beta ''-alumina with relative density exceeding 98% was obtained by spark plasma sintering (SPS) at 1400 degrees C for 15 min. X-ray diffraction measurements and scanning electron microscopy demonstrated that the c-axis of the beta ''-alumina grains oriented along the direction of pressure application during SPS. Na volatilization was well suppressed by encapsulation in a carbon die and a short sintering time. Higher ionic conductivity was observed along the vertical direction than along the direction of pressure application owing to the alignment of the conduction plane in beta ''-alumina crystals. The highest total conductivity at 25 degrees C was 1.9 x 10(-2) S.cm(-1). (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：22 / 26

页数：5

共 17 条

[1] Influence of the kinds of aluminum source on the preferential orientation and properties of Naβ-alumina ceramics [J].

Asaoka, Hiroshi ;

Ogawa, Rie ;

Hayashi, Hidetaka ;

Kishimoto, Akira .

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2006, 114 (1332) :719-721

[2] CONDUCTIVITY OF ION RICH BETA AND BETA'' ALUMINA - SODIUM AND POTASSIUM COMPOUNDS [J].

BAFFIER, N ;

BADOT, JC ;

COLOMBAN, P .

MATERIALS RESEARCH BULLETIN, 1981, 16 (03) :259-265

[3] IONIC-CONDUCTIVITY IN NA+, K+, AND AG+ BETA-''-ALUMINA [J].

BRIANT, JL ;

FARRINGTON, GC .

JOURNAL OF SOLID STATE CHEMISTRY, 1980, 33 (03) :385-390

[4] OBSERVATIONS ON THE NA-BETA''-ALUMINA METAL INTERFACE BY IMPEDANCE SPECTROSCOPY AND SCANNING ELECTRON-MICROSCOPY [J].

BUTCHEREIT, E ;

SCHREIBER, M ;

SCHOONMAN, J .

SOLID STATE IONICS, 1994, 69 (01) :1-12

[5] THERMOELECTRIC ENERGY-CONVERSION WITH SOLID ELECTROLYTES [J].

COLE, T .

SCIENCE, 1983, 221 (4614) :915-920

[6] ELABORATION OF ANISOTROPIC SUPERIONIC CERAMIC CONDUCTORS (NA+BETAAL2O3) USING MICROWAVE-HEATING [J].

COLOMBAN, P ;

BADOT, JC .

MATERIALS RESEARCH BULLETIN, 1978, 13 (02) :135-139

[7] HIGH-RESOLUTION X-RAY-DIFFRACTION OF FULLY AND PARTIALLY MAGNESIUM STABILIZED BETA''-ALUMINA CERAMICS [J].

HARBACH, F .

JOURNAL OF MATERIALS SCIENCE, 1983, 18 (08) :2437-2452

[8] DISSOLUTION OF ALPHA-ALUMINA FOR ELEMENTAL ANALYSIS BY INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION-SPECTROMETRY [J].

HOMEIER, EH ;

KOT, RJ ;

BAUER, LJ ;

GENUALDI, JT .

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1988, 3 (06) :829-834

[9] High temperature sodium batteries: status, challenges and future trends [J].

Hueso, Karina B. ;

Armand, Michel ;

Rojo, Teofilo .

ENERGY & ENVIRONMENTAL SCIENCE, 2013, 6 (03) :734-749

[10]

LIU J, 1990, SOLID STATE COMMUN, V76, P311

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