Synthesis and electrical property measurements of Ba β-alumina in a BaO-MgO-Al2O3 system

被引：4
作者：
He, G [1 ]
Narushima, T
Goto, T
Hirai, T
Iguchi, Y
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Met, Aoba Ku, Sendai, Miyagi 9808579, Japan
[2] Tohoku Univ, Grad Sch, Aoba Ku, Sendai, Miyagi 9808579, Japan
[3] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808579, Japan
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1998年 / 106卷 / 11期
关键词：
beta-alumina; aluminate; solid electrolyte; ionic conductor; solid state sintering; ac impedance; ionic transport number; mobile ion;
D O I：
10.2109/jcersj.106.1048
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：
An ionic conductor, Ba beta-alumina, was synthesized in a BaO-MgO-Al2O3, ternary system by solid state sintering at 2023 to 2073 K. The Ba beta-alumina with a composition of BaO :MgO :Al2O3=1 : 1 : 5 was in a single phase. Its relative density was 96% of the theoretical density. The electrical conductivity of Ba beta-alumina was 4.6 x 10(-3) S.m(-1) at 1673 K and the activation energy was 126.82 kJ.mol(-1). The mobile ion could be Ba2+ and its ionic transport number was about 0.8 to 0.9 at 1073 to 1673 K.
引用
收藏
页码：1048 / 1050
页数：3
相关论文
共 14 条
  • [1] HE G, 1997, J CERAM SOC JPN, V105, P1067
  • [2] Irvine J. T. S., 1990, Advanced Materials, V2, P132, DOI 10.1002/adma.19900020304
  • [3] THE CRYSTAL-STRUCTURE OF BARIUM HEXAALUMINATE PHASE-I (BARIUM BETA-ALUMINA)
    IYI, N
    INOUE, Z
    TAKEKAWA, S
    KIMURA, S
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1984, 52 (01) : 66 - 72
  • [4] Crystal structure of the new magnetoplumbite-related compound in the system SrO-Al2O3-MgO
    Iyi, N
    Gobbels, M
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1996, 122 (01) : 46 - 52
  • [5] THE CRYSTAL-STRUCTURE AND CATION DISTRIBUTION OF HIGHLY NONSTOICHIOMETRIC MAGNESIUM-DOPED POTASSIUM BETA-ALUMINA
    IYI, N
    INOUE, Z
    KIMURA, S
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1986, 61 (02) : 236 - 244
  • [6] DENSE POLYCRYSTALLINE STRONTIUM BETA''-ALUMINA AND BETA-ALUMINA - SYNTHESIS, XRD CHARACTERIZATION AND THERMAL-STABILITY
    KIRCHNEROVA, J
    PETRIC, A
    PELTON, AD
    BALE, CW
    [J]. MATERIALS RESEARCH BULLETIN, 1991, 26 (09) : 909 - 916
  • [7] SYNTHESIS AND THERMAL-STABILITY OF DENSE POLYCRYSTALLINE BARIUM BETA''-ALUMINA
    KIRCHNEROVA, J
    BALE, CW
    PELTON, AD
    PETRIC, A
    [J]. MATERIALS RESEARCH BULLETIN, 1991, 26 (05) : 385 - 390
  • [8] Raistrick ID, 2005, IMPEDANCE SPECTROSCOPY: THEORY, EXPERIMENT, AND APPLICATIONS, 2ND EDITION, P27, DOI 10.1002/0471716243.ch2
  • [9] DIRECT SYNTHESIS OF DIVALENT BETA-ALUMINA AND RELATED PHASES
    SCHAEFER, GW
    VANZYL, A
    WEPPNER, W
    [J]. SOLID STATE IONICS, 1990, 40-1 : 154 - 157
  • [10] ION-TRANSPORT IN CA-2+, SR-2+, BA-2+, AND PB-2+ BETA''-ALUMINAS
    SEEVERS, R
    DENUZZIO, J
    FARRINGTON, GC
    DUNN, B
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1983, 50 (02) : 146 - 152
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