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Recycling zinc oxide varistor blocks for electro‐active silicone composites
Author(s) -
Metz Renaud,
Boudehen Loic,
Tahir Said,
Phou Ty,
Prevost Guillaume,
Jelinek Remi,
Dieudonné Philippe,
Hassanzadeh Merdad
Publication year - 2017
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12637
Subject(s) - varistor , materials science , composite material , zinc , filler (materials) , breakdown voltage , oxide , volume fraction , ceramic , composite number , silicone , voltage , metallurgy , electrical engineering , engineering
The recycling process toward the elimination of varistor wastes into new electro‐active silicon composites has been investigated. We studied the dependence of the E ‐ J characteristics on the aggregate content in the polymer matrix. Formulations with 40 vol.% metal oxide varistor aggregates in the 100‐200 μm range exhibit reliable nonlinear behavior with a switching voltage of 280±30 V/mm. The breakdown voltage of the composite decreases as both filler's diameter and filler's volume fraction increases in the 550‐220 V/mm and 440‐280 V/mm range, respectively. This paves the way for the valorization of varistors based zinc oxide (ZnO) ceramics.