Single wall ball bat including quartz structural fiber

摘要

A single-wall ball bat is made up of a series of layers or plies of unidirectional, two-dimensional, structural fibers having high strain energy properties. The plies are optionally layered upon each other in a lamina structure in which the fibers in one ply are oriented at opposing angles to the fibers in one or more neighboring plies. High purity quartz (SiO₂) fibers, which have very high strain energy properties, may be used to construct substantial portions of the barrel or other regions of the ball bat.