Dry-sliding wear behavior of 3Y-TZP/Al2O3-NbC nanocomposites produced by conventional sintering and spark plasma sintering

Autor(es)

Salem, Raphael E. P. ^[1] ; Guiterrez-Gonzalez, Carlos F. ^[2] ; Borrell, Amparo ^[3] ; Salvador, Maria Dolores ^[3] ; Chinelatto, Adilson L. ^[4] ; Chinelatto, Adriana S. A. ^[4] ; Pallone, Eliria M. J. A. ^[5]

Afiliação do(s) autor(es)

^[1] Univ Tecnol Fed Parana, Dept Acad Engn Mat, Londrina, PR - Brazil

^[2] Nanoker Res SL, Oviedo - Spain

^[3] Univ Politecn Valencia, ITM, Valencia - Spain

^[4] Univ Estadual Ponta Grossa, Dept Engn Mat, Ponta Grossa, PR - Brazil

^[5] Univ Sao Paulo, Fac Zootecnia & Engn Alimentos, Pirassununga, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: International Journal of Applied Ceramic Technology; v. 16, n. 3, p. 1265-1273, MAY-JUN 2019.
• Citações Web of Science: 1

Resumo

This work presents the initial results of the dry-sliding wear behavior of 3 mol% yttria-stabilized zirconia reinforced with 5 vol% alumina-niobium carbide (3Y-TZP/5 vol% Al2O3-NbC) nanocomposites sintered by conventional sintering and spark plasma sintering methods in the temperature range of 1350-1450 degrees C. The reinforcement of 3Y-TZP matrix with hard nanoparticles aimed to improve wear strength of the composites. Wear tests were performed by the ball-on-disc method using alumina (Al2O3) and tungsten carbide with 6 wt% cobalt cermet (WC-6%Co) balls as counter-materials, a load of 15 N, a sliding distance of 2000 m, and a sliding speed of 0.1 m/s. Wear behavior was evaluated in terms of wear rate and FE-SEM micrograph analysis of the wear tracks. The nanocomposite sintered at 1450 degrees C by conventional sintering exhibited the least wear when tested with the WC-6%Co ball. Generally, the wear mechanism showed evidence of severe wear regime with both counter-materials. (AU)

• Processo FAPESP: 15/07319-8 - Estudo de sinterização ultra rápida e de baixo consumo energético: flash Sintering
• Beneficiário: Eliria Maria de Jesus Agnolon Pallone
• Modalidade de apoio: Auxílio à Pesquisa - Regular