Transport Properties of Sol Gel Derived Glasses, Award in U.S. and Indian Currencies

描述：该项目支持利哈伊大学材料科学与工程系H.Jain博士和印度加尔各答印度科学培育协会材料科学系D.Chakravorty博士的合作研究。这项研究旨在更好地了解玻璃中的离子运动。一个目标是将离子-离子关联和二能级系统(TLS)参数与一些材料特性联系起来，通过确定组成的系统变化对交流电学和核自旋弛豫(NSR)行为的影响，非晶性的作用将被独立地检验。通过掺杂改变材料的化学性质，改变碱性离子改变材料的物理性质。这两位科学家的工作应该有助于更好地理解用溶胶凝胶法和熔融法制备玻璃对结构性质和成分的影响。范围：这两位科学家非常有资格进行这项高级研究。他们的部门在各自的国家因在材料科学方面的开创性研究而闻名。这项研究是美国和印度都非常感兴趣的领域。这种合作极有可能产生重大的研究成果。资金：该项目得到两笔赠款的支持：给利哈伊大学的INT 882015289财年印度货币5,157美元90财年印度货币5,157美元+美国29,793美元91财年5,157印度货币+29,794美元印度科学种植协会的INT 8914163：89财年$98,786印度货币

Description: This project supports collaborative research by Dr. H. Jain, Materials Science and Engineering Department, Lehigh University and Dr. D. Chakravorty, Department of Materials Science, Indian Association for the Cultivation of Science, Calcutta, India. The research is directed at a better understanding of ion movement in glass. One objective is to relate the ion-ion correlation and Two Level Systems (TLS) parameters with some material characteristics by determining the effect of a systematic variation of composition on ac electrical and nuclear spin relaxation (NSR) behaviors, the role of amorphousness will be examined independently. The chemical characteristics will be modified by doping, and the physical characteristics will be changed by changing alkali ions. The work by the two scientists should lead to better understanding of the effect of preparation of glass by sol-gel and by melt methods on the structural properties and the composition. Scope: The two scientists are highly qualified to do this advanced research. Their departments are well known in the respective countries for pioneering research in materials science. The research is in an area of considerable interest to the U.S. and to India. The collaboration is highly likely to produce significant research results. Funding: The project is being supported under two grants: INT 8820152 to Lehigh University FY89 $5,157 in Indian Currency FY90 $5,157 in Indian Currency + U.S. $29,793 FY91 $5,157 in Indian Currency + U.S. $29,794 INT 8914163 to the Indian Association for the Cultivation of Science: FY89 $98,786 Indian Currency