Patent ID: 8052903
Filing Date: 2011-11-08
Classification: B82Y,C04B

Abstract:
1. A process for making a defect-free vitreous carbon, said process comprising: providing a mold including a mold cavity; disposing in the mold cavity a pyrolytically evanescent three-dimensional fiber mesh; introducing a polymerizable precursor resin material and a polymerization catalyst into the mold cavity, so that the polymerizable precursor resin material and the polymerization catalyst impregnate the three-dimensional mesh and initiate polymerization to form a rigid polymer material encasing the three-dimensional fiber mesh in the mold cavity; and pyrolyzing the rigid polymer material at elevated temperature, to remove the pyrolytically evanescent three-dimensional fiber mesh and yield the defect-free vitreous carbon material, wherein the void fraction of the vitreous carbon material is less than 0.05.