ABSTRACT
It is critical that nanoscience is integrated with nanomanufacturing for large-scale integration into devices and components. While the previous chapter discussed incorporation of CNTs into the metal matrix, primarily by powder processing, this chapter focuses on the processing methods to fabricate bulk CNT reinforced metal matrix composites. Processing refers to fabrication of the composite resulting in the integration of the reinforcement (CNTs) in the matrix. This is a critical step because it controls the microstructure, which in turn will determine the properties. The processing methods adopted are subject to the constraints of ensuring minimal damage to CNT structure due to applied stresses or due to reaction with the matrix material at elevated temperature. This may lead to chemical reactions, which could lead to loss of CNTs through carbide formation. The carbides formed may affect the properties of the composites favorably or adversely. Stress applied during processing or consolidation might damage CNTs or may align them in the matrix. Some processes might not be scalable for the production of bulk composites, while others are restricted for a specific application. Hence, the fabrication technique will have to be selected considering these factors.
