Preparation of Oriented Beta"-Al2O3 Electrolytes by Freeze-Drying and Study of their Morphology Dependence

被引：1
|
作者：
Ma, Mingyuan [1 ]
Li, Kaiyun [1 ]
Yang, Yang [1 ]
Zhang, Xiao [2 ]
Liang, Sen [1 ]
机构：
[1] Ningxia Univ, Key Lab Ningxia Photovolta Mat, Yinchuan 750021, Ningxia, Peoples R China
[2] North Minzu Univ, Sch Mat Sci & Engn, Yinchuan 750021, Ningxia, Peoples R China
来源：
JOURNAL OF ELECTRONIC MATERIALS | 2022年 / 51卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Beta"-Al2O3; freeze-drying; Na+ conductivity; degree of orientation; BETA-ALUMINA CERAMICS; IONIC-CONDUCTIVITY; SOLID-ELECTROLYTE; SODIUM BETA''; PRECURSORS; BATTERIES; BOEHMITE;
D O I：
10.1007/s11664-022-09614-7
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Beta''-Al2O3 powder was prepared through freeze-drying with liquid nitrogen, then pressed into bulk samples and sintered at 1570 degrees C. The effects of Al2O3 morphology (rod shaped or flake shaped) on the properties of sintered samples were well discussed. The rod-shaped Al2O3 sample shows a Lotgering factor (LF) of 0.38, an ionic conductivity of 1.852 x 10(-1) S cm(-1) for the direction parallel to the pressure at 350 degrees C and a bending strength of 192 MPa, all of which are much higher than those of the flake shaped sample (0.08, 178 MPa, and 3.08 x 10(-3) S cm(-1), respectively). For the rod-shaped sample, the freeze-drying process has evidently increased the degree of crystal orientation and therefore shortened the ion migration path, thereby enhancing its ionic conductivity.
引用
收藏
页码：3727 / 3735
页数：9
相关论文
共 50 条
  • [21] Preparation of Na-β"-Al2O3 solid electrolyte with nano-η-Al2O3 by double zeta process
    Zhang Ling
    Zheng Pei-yu
    Zhang Xiao-xu
    Zhang Chao
    Zhang Huan
    CAILIAO GONGCHENG-JOURNAL OF MATERIALS ENGINEERING, 2021, 49 (06): : 140 - 147
  • [22] W-Y2O3 composite nanopowders prepared by freeze-drying method and its sintering characteristics
    Hu, Weiqiang
    Yu, Liming
    Ma, Zongqing
    Liu, Yongchang
    JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 806 : 127 - 135
  • [23] Investigation on Al2O3 doped PVC–PBMA blend polymer electrolytes
    R. Arunkumar
    Ravi Shanker Babu
    M. Usha Rani
    Journal of Materials Science: Materials in Electronics, 2017, 28 : 3309 - 3316
  • [24] The presence of nanostructured Al2O3 in PMMA-based gel electrolytes
    Krejza, Ondrej
    Velicka, Jana
    Sedlarikova, Marie
    Vondrak, Jiri
    JOURNAL OF POWER SOURCES, 2008, 178 (02) : 774 - 778
  • [25] Effect of Al2O3 in Poly(methyl methacrylate) Composite Polymer Electrolytes
    Sun, C. C.
    You, A. H.
    Teo, L. L.
    Thong, L. W.
    3RD INTERNATIONAL CONFERENCE ON THE SCIENCE AND ENGINEERING OF MATERIALS (ICOSEM 2017), 2018, 1958
  • [26] Preparation and impedance spectroscopic studies of Ba β-Al2O3
    Dunn, S
    Kumar, RV
    Fray, DJ
    SOLID STATE IONICS, 1999, 124 (1-2) : 133 - 142
  • [27] Mechanistic Study of the Influence of Reactant Type and Addition Sequence on the Microscopic Morphology of α-Al2O3
    Wen, Weixiang
    Bai, Yang
    Xu, Mengxu
    Gao, Yujuan
    Yan, Pingke
    Xu, Huabing
    APPLIED SCIENCES-BASEL, 2024, 14 (06):
  • [28] Influence of Stabilizers on the Performance of Beta-Al2O3 Solid Electrolytes
    Zhu Chengfei
    Ji Guanghui
    Xue Jinhua
    RARE METAL MATERIALS AND ENGINEERING, 2014, 43 (10) : 2535 - 2540
  • [29] Fe-doped In2O3 nanostructures synthesized via a freeze-drying process: Structural and optical properties
    Oliveira, Aline A.
    Valerio-Cuadros, Marlon I.
    Tupan, Lilian F. S.
    Zanuto, Vitor Santaella
    Ivashita, Flavio F.
    Paesano, Andrea, Jr.
    MATERIALS LETTERS, 2019, 250 : 210 - 213
  • [30] Kinetic study of Al2O3 sintering by dilatometry
    Holková, Z
    Pach, L
    Kovár, V
    Svetík, J
    CERAMICS-SILIKATY, 2003, 47 (01) : 13 - 19
12345