Effect of CNT distribution on tribological behavior of alumina–CNT composites

Ceramic matrix composites containing carbon nanotubes

“…Interestingly, the CNTs apparently aid super-plastic forming of the composite material, an advantage attributed to inhibited matrix grain growth and grain boundary lubrication 45 . Related studies of the preparation of CNTs/alumina composites using the in situ method have been performed by An et al 49 & Lim et al 50 . As discussed further below, the tribological properties were significantly improved by the presence of CNTs at the alumina grain boundaries (see Figure 3 (b)) 49 .…”

“…Due to the high temperatures and long durations involved in conventional pressureless sintering, hot-pressing (HPS) and hot-isostatic pressing (HIP) methods, degradation of the CNTs during densification of inorganic matrix has often been reported 33,41,45,48,50,73,[79][80][81][82]85 . The difficulty of entirely excluding oxygen, or indeed reactions with the matrix or associated impurities, often leads to the loss of the carbonaceous nanotubes.…”

Carbon Nanofibers Reinforced Ceramic Matrix Composites

“…Alumina-CNT composites with CNT contents from 0 to 12 wt. % were fabricated by two different processing techniques by Lim et al (Lim et al, 2005) in order to compare the effect of fabrication techniques on the tribological properties of CNT added alumina composites. Superior tribological properties were achieved by introduction of tape casting, followed by lamination and hot pressing.…”

Carbon materials with tailored porosity by self-assembly method: Influence of the synthesis conditions

“…CNFs might play an important role in the sliding wear behaviours of ceramics. Several researches have addressed the characterization of the CNFs and their role on the wear behaviours [16][17][18][19] 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 ...…”