Allylhydridopolycarbosilane (AHPCS) as matrix resin for C/SiC ceramic matrix composites

Improvement of mechanical and dielectric properties of PIP-SiCf/SiC composites by using Ti3SiC2 as inert filler

“…Effective consolidation to eliminate pores and cracks is a very important technical issue for making high-performance composites. Many efforts have been done to improve the density of the composites during the PIP process, including developing new precursors with high ceramic yield [8,9], incorporating active and inert fillers to decrease the volume shrinkage [10,11] and combining the PIP process with other methods [12,13]. Particularly, it is an effective and controllable way to make strong and homogeneous matrices with low porosity for SiC f /SiC composites by introducing inert filler into the PCS precursor [14][15][16][17].…”

Manufacture of porous SiC/C ceramics with excellent damage tolerance by impregnation of LPCS into carbonized pinewood

“…LPCS has been explored as a matrix source for SiC fiber-reinforced/SiC matrix composites as well as for joining of SiC ceramics. [16][17][18] To demonstrate the advantage of the method and the superior properties of the as-prepared porous SiC/C ceramics, the structural feature, viscosity, and ceramic yield of this novel LPCS precursor are studied first. Then the impregnation technology is optimized.…”

Liquid polycarbosilane-derived C/C–SiC composites with improved mechanical strength for high temperature applications

“…Thus, the use of organic solvents for dissolving solid PCS can be eliminated. Survey of the pertinent literature reveals that most of the reported work on the liquid precursor relates to allylhydridopolycarbosilane (AHPCS) which gives 70% ceramic residue [8]. It has been widely evaluated as matrix resin for C/SiC composites [8].…”

“…Survey of the pertinent literature reveals that most of the reported work on the liquid precursor relates to allylhydridopolycarbosilane (AHPCS) which gives 70% ceramic residue [8]. It has been widely evaluated as matrix resin for C/SiC composites [8]. AHPCS suffers from the disadvantage that it undergoes selfcrosslinking and produces hydrogen on standing [8].…”

“…It has been widely evaluated as matrix resin for C/SiC composites [8]. AHPCS suffers from the disadvantage that it undergoes selfcrosslinking and produces hydrogen on standing [8]. In an attempt to obtain liquid PCS with higher Si-H content, in the present study, PDMS has been converted into liquid PCS.…”