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Levitation technique makes novel hard oxide glass with very high elastic modulus
Levitation technique makes novel hard oxide glass with very high elastic modulus





Atsunobu Masuno, Gustavo Rosales-Sosa, and research collaborators at the University of Tokyo and Japan Synchrotron Radiation Research Institute have succeeded in making new hard oxide glasses with very high elastic moduli by containerless processing using an aerodynamic levitation furnace. The glasses are composed only of Al2O3 and Ta2O5, and colorless and transparent. The Young's modulus and Vickers hardness of 54Al2O3-46Ta2O5 glass are 158.3 GPa and 9.1 GPa, respectively, which are almost the highest values among oxide glasses. The hard glasses are possible candidates for the thinner glasses desired for windows, substrates, and cover glasses.