HIGH MODULUS GLASS FIBERS

摘要

Glass compositions and high-modulus and high-strength glass fibers made therefrom, being capable of continuous processing and suitable for production of high-strength and/or high stiffness articles are disclosed. The glass composition may include the following constituents: between about 45 to about 65 weight percent SiO2; between about 12 to about 27 weight percent Al2O3, wherein the weight percent ratio of SiO2/Al2O3 is between about 2 to about 4; between about 5 to about 15 weight percent MgO; between about 2 to about 10 weight percent CaO, wherein the weight percent ratio of MgO/CaO is between about 1 to about 4; between about 0 to about 1 weight percent Na2O; between about 0.01 to about 14.5 weight percent Y2O3; between about 0 to about 3 weight percent TiO2; and between about 0 to about 5 weight percent ZrO2.