Conductivity of Composites MeWO4-Al2O3 (Me = Ca, Sr)

被引：1
作者：
Guseva, A. F. [1 ]
Pestereva, N. N. [1 ]
Kuznetsov, D. K. [1 ]
Boyarshinova, A. A. [1 ]
Gardt, V. A. [1 ]
机构：
[1] Ural Fed Univ, Ekaterinburg 620002, Russia
来源：
RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2023年 / 59卷 / 04期
关键词：
calcium tungstate; strontium tungstate; aluminum oxide; composite; heterogeneous doping; composite effect; TRANSPORT NUMBERS; METACOMPOSITES;
D O I：
10.1134/S1023193523040079
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Composites (1 - x)MeWO4-xAl(2)O(3) (Me = Ca, Sr) are synthesized by the solid-phase method. Their phase composition and thermodynamic stability are confirmed by the XRD and TG-DSC data, respectively. Their morphology is studied by the SEM-EDA method. The conductivity of composites is studied by the method of electrochemical impedance spectroscopy as a function of the temperature, the gas-phase oxygen pressure, and the content of added disperse Al2O3. It is shown that composites (1 - x)MeWO4-xAl(2)O(3) (Me = Ca, Sr) are ionic conductors and their conductivity is 4-12 times higher as compared with the corresponding tungstates.
引用
收藏
页码：284 / 290
页数：7
相关论文
共 50 条
[41]   Thermal and mechanical properties of Al/Al2O3 composites at elevated temperatures [J].
Gudlur, Pradeep ;
Forness, Adam ;
Lentz, Jonathan ;
Radovic, Miladin ;
Muliana, Anastasia .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 531 :18-27
[42]   Enhanced Thermal Conductivity of Epoxy Composites Filled with Al2O3/Boron Nitride Hybrids for Underfill Encapsulation Materials [J].
Lee Sanchez, William Anderson ;
Huang, Chen-Yang ;
Chen, Jian-Xun ;
Soong, Yu-Chian ;
Chan, Ying-Nan ;
Chiou, Kuo-Chan ;
Lee, Tzong-Ming ;
Cheng, Chih-Chia ;
Chiu, Chih-Wei .
POLYMERS, 2021, 13 (01) :1-17
[43]   Synthesis and Properties of Al2O3-Fe2O3 Ceramic Composite with Limited Electrical Conductivity [J].
Karagedov, G. R. ;
Krasnov, A. A. ;
Levichev, A. E. ;
Mamoshkina, E., V .
CHEMISTRY FOR SUSTAINABLE DEVELOPMENT, 2018, 26 (02) :131-137
[44]   Multilayer composites in Al2O3/MoSi2 system [J].
Watanabe, T ;
Zhang, GJ ;
Yue, XM ;
Zeng, YP ;
Shobu, K ;
Bahlawane, N .
MATERIALS CHEMISTRY AND PHYSICS, 2001, 67 (1-3) :256-262
[45]   Mechanism of Synthesizing Al2O3/Fe-Al Composites with nano Al2O3 Fibers by In-Situ Process [J].
Lu Chen-jing ;
Ren Shu-xia ;
Wang Jian-lei ;
Yu Gang .
MICRO-NANO TECHNOLOGY XIV, PTS 1-4, 2013, 562-565 :837-841
[46]   Influence of Al2O3 particle size on properties of thermoplastic starch–TiO2–Al2O3 composites [J].
Narong Chueangchayaphan ;
Kang Ai Ting ;
Mahani Yusoff ;
Wannarat Chueangchayaphan .
Polymer Bulletin, 2019, 76 :5889-5902
[47]   Study of the Conditions for Ceramic and Mechanochemical Synthesis of CuO/ZnO/γ-Al2O3 Composites [J].
R. N. Rumyantsev ;
A. A. Kournikova ;
A. A. Ily’in ;
A. V. Afineevsky ;
T. N. Borisova ;
E. S. Severgina ;
D. A. Prozorov ;
N. N. Smirnov .
Glass and Ceramics, 2024, 80 :370-377
[48]   Study of the Conditions for Ceramic and Mechanochemical Synthesis of CuO/ZnO/γ-Al2O3 Composites [J].
Rumyantsev, R. N. ;
Kournikova, A. A. ;
Ily'in, A. A. ;
Afineevsky, A. V. ;
Borisova, T. N. ;
Severgina, E. S. ;
Prozorov, D. A. ;
Smirnov, N. N. .
GLASS AND CERAMICS, 2024, 80 (9-10) :370-377
[49]   SELF PROPAGATING HIGH TEMPERATURE SYNTHESIS COMPOSITES ON THE BASIS TiB2-Al2O3 and CrB2-Al2O3 [J].
Abdulkarimova, Roza G. ;
Raimkhanova, Danara S. ;
Mansurov, Zulkhair A. .
20TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS, 2015,
[50]   Formation of TiB2-Al2O3 and NbB2-Al2O3 composites by combustion synthesis involving thermite reactions [J].
Yeh, C. L. ;
Li, R. F. .
CHEMICAL ENGINEERING JOURNAL, 2009, 147 (2-3) :405-411
12345