The addition of multi-walled carbon nanotube reinforcements to a ceramic matrix has been suggested to improve the fracture toughness. The hypothesized improvement is thought to be the result of crack bridging and other toughening mechanisms. However, no such improvement in toughness has not been achieved to date for a multi-walled carbon nanotube and silicon carbide composite. However, there are several processing techniques, compositions, and methods for producing said composite, which may inhibit or foster success. Here, we report the processing, microstructure, and properties of a multi-walled carbon nanotube and silicon carbide composite material. The processing required careful mixing of the carbon nanotubes within the matrix in order to maximize dispersion and minimize carbon nanotube damage. The sintering required careful control of specific parameters to produce the desired microstructure and maximum density. The spark plasma sintering technique used was. These processing methods resulted in unique microstructures which in turn affected the material properties. The effect on the mechanical strength was evaluated using three-point flexural testing.