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- Title
Caracterização química, mecânica, elétrica e microestrutural de resíduo de para-raios da região de Blumenau.
- Authors
Eloi Vieira Junior, Luiz; Henrique Meyer, Luiz; Bortolotto Teixeira, Alexandre Henrique; Rodrigues Neto, João Batista; Novaes de Oliveira, Antônio Pedro
- Abstract
The objective of this work was to characterize and evaluate the reuse of zinc oxide varistors. The residues were milled and pressed uniaxially. The green bodies was fired 1400 °C for 60 minutes in oxidizing atmosphere, with a heating cycle of 10 °C/min. The final porosity was homogeneously distributed throughout its microstructure and flexural strength of 12 MPa. The electrical behavior of the material obtained under voltage x electrical current showed a short-circuit behavior at 600 V. Thus, new and used ceramics did not show differences that could be associated with degradation after use, indicating that discarded and new materials are similar, favoring their reuse and recycling.
- Subjects
WASTE recycling; VARISTORS; ZINC oxide; SHORT-circuit currents; THERMODYNAMIC cycles
- Publication
Tecnologia em Metalurgia, Materiais e Mineração, 2022, Vol 19, p1
- ISSN
2176-1515
- Publication type
Article
- DOI
10.4322/2176-1523.20222603