U.S.-Japan Cooperative Science: New Insights to Borate Glasses Including Structural Changes Induced Under High Pressure

0089510 Feller该奖项支持Coe College的Steven Feller教授与筑波大学的Sejji Kojima教授、Sojo大学的Kodama教授和熊本大学的Tsutomu Mashimo教授之间为期三年的合作研究项目。 研究人员将对硼酸盐玻璃的新见解进行研究：高压下引起的结构变化;以及从光谱和性质推导出的短程和中程有序。 该研究的目的是系统地表征这些玻璃系统中的物理性质和原子排列。 对玻璃进行了密度、热性能、光学透射、飞行时间质谱、红外、拉曼、NMR、NQR和中子散射测量，以了解存在的原子排列以及物理性能与结构的定量关系。 对新型加工技术（溶液化学、快速冷却和冲击压缩）内在物理性质值的理解有助于揭示玻璃网络的结构。 这与通过光谱观察来观察中程有序相结合，具有很好地洞察玻璃结构的潜力。 美国和日本的本科生将参与联合研究。该项目汇集了四个具有互补专业知识和研究能力的实验室的努力。 通过交流思想和技术，该项目将扩大我们的基础知识，促进国际理解与合作。 研究人员计划在科学期刊上发表研究结果，并在科学会议上报告研究结果。

0089510FellerThis award supports a three-year collaborative research project between Professor Steven Feller, Coe College and Professor Sejji Kojima of the University of Tsukuba, Professor Kodama of Sojo University and Professor Tsutomu Mashimo of Kumamoto University. The researchers will be undertaking a study of new insights to borate glasses: structural changes induced under high pressure; and short range and intermediate range order deduced from spectroscopy and properties. The objective of the study is to systematically characterize the physical properties and atomic arrangements in these glass systems. Density, thermal properties, optical transmission, time of flight mass spectroscopy, infrared, Raman, NMR, NQR, and neutron scattering measurements have been performed on glasses to learn about the atomic arrangements present and the quantitative relationships of the physical properties to the structure. The understanding of the novel processing technique (solution chemistry, rapid cooling, and shock compression) on the values of the intrinsic physical properties contributes to revealing the structure of the glass network. This combined with looking at the intermediate range order by spectroscopic observation has a potential of good insight into the glass structure. Undergraduate students in both the U.S. and Japan will be involved in the joint research. The project brings together the efforts of four laboratories that have complementary expertise and research capabilities. Through the exchange of ideas and technology, this project will broaden our base of basic knowledge and promote international understanding and cooperation. The researchers plan to publish results of the research in scientific journals and report on the findings at scientific meetings.