Recycling zinc oxide varistor blocks for electro‐active silicone composites. Issue 2 (12th January 2017)

• Record Type: Journal Article
• Authors: Metz, Renaud; Boudehen, Loic; Tahir, Said; Phou, Ty; Prevost, Guillaume; Jelinek, Remi; Dieudonné, Philippe; Hassanzadeh, Merdad
• Is Part Of: International journal of applied ceramic technology. Volume 14:Issue 2(2017)
• Page Start: 274
• Page End: 281
• Publication Date: 2017-01-12
• Subjects: composite -- microvaristor -- metal oxide varistor -- silicone -- varistor; Ceramics -- Periodicals; Ceramics -- Technological innovations -- Periodicals; 620.1405
• DOI: 10.1111/ijac.12637
• Languages: English
• ISSNs: 1546-542X

Abstract

Abstract: 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.