本发明公开了一种碳化硅陶瓷基复合材料结构/功能件的增材制造方法，包括以下步骤：称取碳化硅、碳纤维和硅微粉，真空烘干；碳纤维进行化学气相沉积处理，使碳纤维的表面形成无定形碳；碳化硅进行化学气相沉积处理，使碳化硅的表面形成硅薄膜；硅微粉、碳纤维和碳化硅混合均匀，获得混合粉；设置成形参数及扫描策略，将结构/功能件模型输出为STL格式并导入激光选区熔化成形设备；将混合粉通入激光选区熔化成形设备，在保护气的气氛下进行结构/功能件成形，实现碳化硅基陶瓷结构/功能件的增材制造。本发明安全高效，制造的结构/功能件致密度高且组织均匀，可实现近净尺寸成型，无需后处理。

The invention discloses a material increase manufacturing method of a silicon carbide ceramic matrix composite structure/functional piece, which comprises the following steps: weighing silicon carbide, carbon fiber and silicon micropowder, and drying in vacuum; carrying out chemical vapor deposition treatment on the carbon fibers to form amorphous carbon on the surfaces of the carbon fibers; carrying out chemical vapor deposition treatment on the silicon carbide to form a silicon film on the surface of the silicon carbide; uniformly mixing the silicon micro powder, the carbon fiber and the silicon carbide to obtain mixed powder; setting forming parameters and a scanning strategy, outputting the structure/function part model into an STL format and introducing the STL format into selective laser melting forming equipment; and introducing the mixed powder into selective laser melting forming equipment, and forming the structural/functional part under the atmosphere of protective gas to realize additive manufacturing of the silicon carbide-based ceramic structural/functional part. The invention is safe and efficient, the manufactured structure/functional part has high density and uniform tissue, and near net size forming can be realized without post-treatment.