2.2. Carbon/metal composites
The ease of machinability is the most attractive property of carbon/metal composites, while the bottleneck is their low value of TC [15].
2.2.1. Cf/Al
Widespread application of C/Al is limited by manufacturing problems, which is derived from the reactivity between carbon and liquid aluminum [16]:
equation(3)
4Al(1)+3C(s)→4AlC3(s)