Interfacial control of uni-directional SiCf/SiC composites based on electrophoretic deposition and their mechanical properties

Fabrication of SiCf/SiC composites by alternating current electrophoretic deposition (AC–EPD) and hot pressing

“…[28][29][30] Recently, several successful attempts have been made to use EPD-based technique for the fabrication of SiC f /SiC. [20][21][22][23][24][25][26] Generally, organic solvents are used over water for EPD because of the evolution of hydrogen and/or oxygen bubbles from water electrolysis in DC electric fields. Although efforts have been made to produce uniform deposition in an aqueous system by minimizing the water electrolysis under DC electric fields, including the use of graphite electrode 31 and pulsed DC signal, 32 AC-EPD in an aqueous suspension has emerged recently as a successful processing technique for the deposition of a range of particles.…”

“…Because the fabrication of high density SiC f /SiC is essential, a range of techniques, such as reaction sintering (RS), 16 chemical vapor infiltration (CVI), 17 polymer impregnation and pyrolysis (PIP), 18 nano-infiltrated transient eutectoid (NITE) 19 and electrophoretic deposition (EPD)-based technique, [20][21][22][23][24][25][26] have been used to infiltrate the matrix phase into the voids of a fiber-preform. Among these, EPD-based technique has several advantages, such as precise controllability of the composition, simple deposition apparatus, fast and even growth rate, and ease of depositing multilayer films with a controlled thickness.…”

Formation of Ti3SiC2 interphase coating on SiCf/SiC composite by electrophoretic deposition

“…[19][20][21] Yoshida et al used a graphite suspension to coat PyC interphase onto SiC fibers within a SiC fabric, and confirmed the improvement of the fracture toughness via the production of SiC f /SiC composites using the prepared preforms. [19][20][21] When Ti 3 SiC 2 is coated on SiC fiber through EPD, due to the anisotropy of the Ti 3 SiC 2 particles, the coating layer may be formed so that the basal plane of Ti 3 SiC 2 is aligned in a direction parallel to the SiC fiber. Filbert-Demut et al coated Ti 3 SiC 2 powder onto a large diameter SiC fiber through EPD and Mishra et al maintained the crystal orientation of Ti 3 SiC 2 particles in a constant state using a magnetic field on a flat substrate.…”

“…To achieve a high‐quality coating, many parameters related to the suspension and the process must be considered to achieve a high‐quality coating. Meanwhile, studies on coating of a PyC interphase onto SiC fibers through EPD have been conducted . Yoshida et al used a graphite suspension to coat PyC interphase onto SiC fibers within a SiC fabric, and confirmed the improvement of the fracture toughness via the production of SiC f /SiC composites using the prepared preforms .…”

“…Meanwhile, studies on coating of a PyC interphase onto SiC fibers through EPD have been conducted . Yoshida et al used a graphite suspension to coat PyC interphase onto SiC fibers within a SiC fabric, and confirmed the improvement of the fracture toughness via the production of SiC f /SiC composites using the prepared preforms . When Ti 3 SiC 2 is coated on SiC fiber through EPD, due to the anisotropy of the Ti 3 SiC 2 particles, the coating layer may be formed so that the basal plane of Ti 3 SiC 2 is aligned in a direction parallel to the SiC fiber.…”