Effect of processing conditions on the sliding-wear resistance of ZrC triboceramics fabricated by spark-plasma sintering

2015 ◽  
Vol 41 (10) ◽  
pp. 15278-15282 ◽  
Author(s):  
Davide Bertagnoli ◽  
Oscar Borrero-López ◽  
Fernando Rodríguez-Rojas ◽  
Fernando Guiberteau ◽  
Angel L. Ortiz
2013 ◽  
Vol 69 (8) ◽  
pp. 598-601 ◽  
Author(s):  
Esther Ciudad ◽  
Estíbaliz Sánchez-González ◽  
Oscar Borrero-López ◽  
Fernando Guiberteau ◽  
Mats Nygren ◽  
...  

2016 ◽  
Vol 36 (13) ◽  
pp. 3091-3097 ◽  
Author(s):  
Estíbaliz Sánchez-González ◽  
Oscar Borrero-López ◽  
Fernando Guiberteau ◽  
Angel L. Ortiz

2014 ◽  
Vol 77 ◽  
pp. 9-12 ◽  
Author(s):  
Angel L. Ortiz ◽  
Esther Ciudad ◽  
Timur N. Baymukhametov ◽  
Oscar Borrero-López ◽  
Alexander L. Vasiliev ◽  
...  

Author(s):  
Xiangxing Deng ◽  
Núria Cinca ◽  
Dariusz Garbiec ◽  
José Manuel Torralba ◽  
Andrea García-Junceda

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 920 ◽  
Author(s):  
Saleh Wohaibi ◽  
Abdul Mohammed ◽  
Tahar Laoui ◽  
Abbas Hakeem ◽  
Akeem Adesina ◽  
...  

The present study investigates the high temperature tribological performance of spark plasma sintered, nano- and micron-sized tungsten carbide (WC) bonded by 9 wt.% cobalt (Co). The composites were fabricated using a two-step procedure of mixing followed by spark plasma sintering (SPS). Ball-on-disc wear tests were conducted at a normal load of 30 N, linear speed of 0.1 m/s under dry conditions and at three different temperatures (room temperature, 300 °C and 600 °C). Field emission scanning electron microscopy (FESEM), optical profilometry and energy dispersive X-ray (EDS) spectroscopy were used to analyze the surface morphology and the wear track area. At room temperature, it was observed that the nano-sized WC composites exhibited better wear resistance than the micron-sized WC composites. The wear resistance of the nano-sized samples declined significantly relative to that of the micron-sized samples with an increase in temperature. This decline in performance was attributed to the higher surface area of nano-sized WC particles, which underwent rapid oxidation at elevated temperatures, resulting in poor wear resistance. The wear rate observed at 600 °C for the micron-sized WC composites was 75% lower than that of the nano-sized cemented carbide. Oxidative wear was observed to be the predominant wear mechanism for both cemented carbide samples at elevated temperatures.


Sign in / Sign up

Export Citation Format

Share Document