OPTMECHANICAL FIBER-REINFORCED GLASS MATRIX COMPOSITE : FABRICATION AND PROPERTIES

摘要

Fabrication of both optically transparent and tough fiber-reinforced glass matrix composite is carried out. Two types of oxynitride (SiCaAlON) fiber-reinforced glass matrix composites (unidirectional aligned continuous and in plane random oriented short fiber-reinforced composite) are fabricated by a hot-pressing technique. The fiber volume fraction for both the composites ranges from 0.03 to 0.10. The light transmittance of the composite decreases with the increase of the fiber volume fraction and this behavior is due to the existence of small defects which act as a source of light refraction. The maximum light transmittance of the short fiber-reinforced composite at 589 nm is approx = 60 percent of the monolithic glass matrix. The maximum work of fracture of the short fiber-reinforced composite is approx = 13 J/m~2.