POLYDISILAZANES PREPARED FROM BORON-CONTAINING ADDITIVES

摘要

The present disclosure generally relates to methods of using boron- containing additives for crosslinking polysilazane green fibers, which are precursors to silicon carbide fibers. These methods provide a controllable process for crosslinking silicon carbide fibers while providing a simple way for the introduction of boron as a sintering aid into the polymer structure.