Open AccessCreating a composite material ZnO-Bi2O3 with a core-shell structure for varistor ceramics
Author(s) -
Yuliya Shanenkova,
А. И. Циммерман,
Liliya Osokina
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1347/1/012040
Subject(s) - spark plasma sintering , materials science , varistor , sintering , ceramic , composite number , core (optical fiber) , plasma , shell (structure) , composite material , grain size , voltage , electrical engineering , physics , quantum mechanics , engineering
This paper discusses use of the plasma dynamic synthesis to obtain ZnO-Bi 2 O 3 composite powder. This method allows to get the main ZnO material with the formation of core-shell particles. Sintering of ceramics from this material was carried out using spark plasma sintering facility. Use of this sintering method provides obtaining a fine-grained structure of ZnO (average grain size of 1.3 μm). Comparison of the current-voltage characteristics of ceramics from commercial and plasma dynamic materials showed promise of using a ZnO- Bi 2 O 3 composite with a core-shell structure.