| Lubrication Knowledge Menu | Products and Services Directory
Carbon and graphites: The primary
limitations of bulk carbon are low tensile strength and lack
of ductility. However, their high thermal and oxidation
stabilities at temperatures of 500 to 600°C (932 to
1112°F) (higher with additives) enable use at high
temperatures and high sliding speeds. For graphitic carbons
in dry conditions, the wear rate increases with temperature.
This condition is exacerbated when adsorbed moisture
inhibits transfer film formation. Furthermore, dusting may
also cause failure at high temperatures and sliding speeds.
However, additives are available to inhibit dusting.
|
