| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2019: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2018: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2017: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
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| Outline of Final Research Achievements |
Densely packed oxide glasses that are out of the conventional glass-forming rule were prepared by a levitation technique. Al2O3-Ta2O5-based and Al2O3-SiO2-based glasses exhibited superior mechanical properties such as large elastic modulus (Young's modulus was greater than 150 GPa). In the ternary system of MgO-SiO2-P2O5, the hardness of the MgO-rich glasses was much higher than those of conventional MgO-poor glasses. Structural analyses suggested that the local structures of these hard glasses were clearly different from those of conventional oxide glasses, and led to densely packed atomic arrangements.
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