Abstract
Zinc oxide has been studied for many years and found many applications in different areas, including the power engineering, where the ZnO-based ceramics could be used as a varistor. However, there is a necessity to add different oxides to ZnO to make a uniform ceramics structure with well enough nonlinear characteristics. In this regard, the uniform distribution of additives in the structure of a composite based on ZnO becomes an urgent task to prepare the high-quality ceramics. This work shows the possibility to obtain the composite powdered material with the uniformly distributed Bi2O3 addition in the ZnO crystallites by a plasma dynamic method. The features of this method and flowing reactions allow forming the ZnO-Bi2O3 particles with the core-shell structure. The spark plasma sintering of the ZnO-Bi2O3 composite material with such particles structure provides the production of varistor ceramics characterized by a fine-grained ZnO structure (average grain size is about 1 µm) with uniformly filled intergranular spaces by Bi2O3. The comparison of voltage-current characteristics with the ceramics made of ball-milled commercial powders showed the prospects of using as-prepared ZnO-Bi2O3 composite with core-shell structure.
| Original language | English |
|---|---|
| Pages (from-to) | 22808-22815 |
| Number of pages | 8 |
| Journal | Ceramics International |
| Volume | 44 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 15 Dec 2018 |
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Keywords
- Ceramics
- Plasma dynamic synthesis
- Varistors
- ZnO-BiO composite, core-shell structure
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Process Chemistry and Technology
- Surfaces, Coatings and Films
- Materials Chemistry
Cite this
Plasma dynamic synthesis of composite ZnO-Bi2O3 material with a core-shell structure for varistor ceramics. / Sivkov, Alexander; Ivashutenko, Alexander; Shanenkova, Yuliya; Shanenkov, Ivan; Rakhmatullin, Iliyas; Osokina, Liliya.
In: Ceramics International, Vol. 44, No. 18, 15.12.2018, p. 22808-22815.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Plasma dynamic synthesis of composite ZnO-Bi2O3 material with a core-shell structure for varistor ceramics
AU - Sivkov, Alexander
AU - Ivashutenko, Alexander
AU - Shanenkova, Yuliya
AU - Shanenkov, Ivan
AU - Rakhmatullin, Iliyas
AU - Osokina, Liliya
PY - 2018/12/15
Y1 - 2018/12/15
N2 - Zinc oxide has been studied for many years and found many applications in different areas, including the power engineering, where the ZnO-based ceramics could be used as a varistor. However, there is a necessity to add different oxides to ZnO to make a uniform ceramics structure with well enough nonlinear characteristics. In this regard, the uniform distribution of additives in the structure of a composite based on ZnO becomes an urgent task to prepare the high-quality ceramics. This work shows the possibility to obtain the composite powdered material with the uniformly distributed Bi2O3 addition in the ZnO crystallites by a plasma dynamic method. The features of this method and flowing reactions allow forming the ZnO-Bi2O3 particles with the core-shell structure. The spark plasma sintering of the ZnO-Bi2O3 composite material with such particles structure provides the production of varistor ceramics characterized by a fine-grained ZnO structure (average grain size is about 1 µm) with uniformly filled intergranular spaces by Bi2O3. The comparison of voltage-current characteristics with the ceramics made of ball-milled commercial powders showed the prospects of using as-prepared ZnO-Bi2O3 composite with core-shell structure.
AB - Zinc oxide has been studied for many years and found many applications in different areas, including the power engineering, where the ZnO-based ceramics could be used as a varistor. However, there is a necessity to add different oxides to ZnO to make a uniform ceramics structure with well enough nonlinear characteristics. In this regard, the uniform distribution of additives in the structure of a composite based on ZnO becomes an urgent task to prepare the high-quality ceramics. This work shows the possibility to obtain the composite powdered material with the uniformly distributed Bi2O3 addition in the ZnO crystallites by a plasma dynamic method. The features of this method and flowing reactions allow forming the ZnO-Bi2O3 particles with the core-shell structure. The spark plasma sintering of the ZnO-Bi2O3 composite material with such particles structure provides the production of varistor ceramics characterized by a fine-grained ZnO structure (average grain size is about 1 µm) with uniformly filled intergranular spaces by Bi2O3. The comparison of voltage-current characteristics with the ceramics made of ball-milled commercial powders showed the prospects of using as-prepared ZnO-Bi2O3 composite with core-shell structure.
KW - Ceramics
KW - Plasma dynamic synthesis
KW - Varistors
KW - ZnO-BiO composite, core-shell structure
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U2 - 10.1016/j.ceramint.2018.09.072
DO - 10.1016/j.ceramint.2018.09.072
M3 - Article
VL - 44
SP - 22808
EP - 22815
JO - Ceramics International
JF - Ceramics International
SN - 0272-8842
IS - 18
ER -