| 摘要 |
Provided are glass fibers having non-circular cross sections, as well as good strength and a good modulus of elasticity, and a fiber-reinforced resin compact using the same. These glass fibers having non-circular cross sections are obtained by spinning molten glass, which is obtained by melting a glass composition that serves as a raw material of the glass fibers. The glass fibers have a composition wherein, relative to the total amount, the amount of SiO2 is 57.0 to 63.0 mass%, the amount of Al2O3 is 19.0 to 23.0 mass%, the amount of MgO is 10.0 to 15.0 mass%, and the amount of CaO is 5.5 to 11.0 mass%. The ratio of the amount of MgO relative to the amount of CaO (MgO/CaO) is in the range of 0.8 to 2.0. |
