Nishida Prize

Yoshio Kono

Commendation

Synchrotron X-ray studies on the structure and properties of magmas under pressure

A list of five major papers

  • Y. Kono, K. Ohara, N. M. Kondo, H. Yamada, S. Hiroi, F. Noritake, K. Nitta, O. Sekizawa, Y. Higo, Y. Tange, H. Yumoto, T. Koyama, H. Yamazaki, Y. Senba, H. Ohashi, S. Goto, I. Inoue, Y. Hayashi, K. Tamasaku, T. Osaka, J. Yamada, and M. Yabashi (2022), Experimental evidence of tetrahedral symmetry breaking in SiO2 glass under pressure. Nature Communications, 13, 2292.
  • Y. Kono, Y. Shibazaki, C. Kenney-Benson, Y. Wang, G. Shen (2018), Pressure-induced structural change in MgSiO3 glass at pressures near the Earth’s core–mantle boundary. Proceedings of the National Academy of Sciences (PNAS), 115, 1742-1747.
  • Y. Kono, C. Kenney-Benson, D. Ikuta, Y. Shibazaki, Y. Wang, and G. Shen (2016), Ultrahigh-pressure polyamorphism in GeO2 glass with coordination number> 6. Proceedings of the National Academy of Sciences (PNAS), 113, 3436-3441.
  • Y. Kono, C. Park, C. Kenney-Benson, G. Shen, Y. Wang (2014), Toward comprehensive studies of liquids at high pressures and high temperatures: Combined structure, elastic wave velocity, and viscosity measurements in the Paris–Edinburgh cell. Physics of the Earth and Planetary Interiors, 228, 269-280.
  • Y. Kono, C. Kenney-Benson, D. Hummer, H. Ohfuji, C. Park, G. Shen, Y. Wang, A. Kavner, and C. E. Manning (2014), Ultralow viscosity of carbonate melts at high pressures. Nature Communications, 5, 5091.

Major achievements

Yoshio Kono studies elastic wave velocities of the Earth’s materials, and structure and physical properties of magmas under pressure by using high pressure synchrotron X-ray experiments. He has developed several high pressure experimental techniques such as X-ray pair distribution function measurement, ultrafast X-ray imaging, and ultrasonic elastic wave velocity measurement combined with large volume press, toward comprehensive understanding of structure and physical properties such as viscosity and elasticity of melts and glasses at high pressure conditions. In particular, the falling sphere viscosity measurement using the ultrafast X-ray imaging revealed ultralow viscosity of carbonate melts, which is similar to that of water, not silicate melts. In addition, development of the new opposed-type double-stage large volume cell opened new way to investigate the structure of amorphous materials under ultrahigh pressure conditions exceeding 100 GPa. His research achievements, wide ranging technical developments, and international collaborations in synchrotron X-ray facilities in Japan and USA have been highly recognized internationally.

Nominator

Self Recommendation

Supporters

Yanbin Wang, Yuji Higo