In situ carbonization of a resin to form a carbon-carbon composite

A method comprising:

• depositing a first layer of material on a work surface of a three-dimensional printing system, wherein the first layer of material comprises a resin and at least one of a carbon fiber or a carbon fiber precursor material, and wherein depositing the first layer of material comprises depositing the resin on the work surface via at least one print head of the three-dimensional printing system;
• carbonizing the resin of the first layer of material to form a first layer of carbon-carbon composite comprising carbon fibers and a carbonized matrix material, wherein carbonizing the resin comprises carbonizing localized sections of the resin of the first layer of material using a carbonizer of the three-dimensional printer system to convert the resin to the carbonized matrix material;
• depositing an additional layer of material on the first layer of carbon-carbon composite, the additional layer of material comprising the resin and at least one of the carbon fiber or the carbon fiber precursor material, and wherein depositing the additional layer of material comprises depositing the resin on the first layer of carbon-carbon composite via the at least one print head of the three-dimensional printing system;
• and
• carbonizing localized sections of the resin of the additional layer of material using the carbonizer to convert the resin of the additional layer of material to the carbonized matrix material.