Microestrutura e propriedades tribológicas dos compósitos de SiC-10 wt% Co fabricados por Spark Plasma Sintering (SPS)
DOI:
https://doi.org/10.53660/PRW-2001-3710Palavras-chave:
SiC-Co Composites, Spark Plasma Sintering (SPS), Tribological propertiesResumo
Neste trabalho, compósitos de SiC-10 wt% Co foram preparados por moagem de alta energia e consolidados por SPS a 1650 °C por 5 min. A micorestutura e propriedades tribológicas foram estudadas. A sinterização assistida por fase líquida proporcionou que os grãos de SiC fossem interconectados e envolvidos pelo aglutinante Co. O coeficiente de atrito médio dos compósitos alcançou valores de 0.13 e 0.17 para as cargas aplicadas 10 N e 15 N, respectivamente. O volume e a taxa de desgaste específica dos compósitos apresentaram aumento significativo com o aumento da carga de desgaste. Os compósitos mostraram-se atrativos para materiais com aplicações tribológicas.
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