| 摘要 |
PROBLEM TO BE SOLVED: To provide alkali-free glass that satisfies a high Young's modulus and a high specific elasticity at the same time.SOLUTION: The alkali-free glass comprises, in mass% on an oxide basis, SiO40-61, AlO15-23.5, MgO 2-20, and CaO 0.1-40 with [SiO]+0.43×[AlO]+0.59×[CaO]-74.6≤0, and [SiO]+0.21×[MgO]+1.16×[CaO]-83.0≤0.SELECTED DRAWING: None |
