US-Indo Cooperative Research: Phase Selection in Ceramic Oxides under Non-Equilibrium Conditions, Award in US and Indian Currency

描述：该提案是由圣巴巴拉加利福尼亚大学的材料科学家Carlos Levi和班加罗尔印度科学研究所的Vikram Jayaram进行的美印研究合作。该项目名为“非平衡条件下陶瓷氧化物的相选择”。研究人员将研究在热力学平衡受到高度限制的条件下合成的陶瓷氧化物中氧化物微结构的演变。该计划将侧重于相对简单的二元和更高组分系统，使用已被证明有潜力带来实质性亚稳态的技术。以这种方式产生的组合物将被热处理，以研究由非平衡结构向更稳定结构演变的状态层次。主要目的是加强对相选择过程的理解，它们与亚稳态基本形式的关系，以及它们通过随后的转变对微观结构演变的影响。范围：pi在这个领域有丰富的经验，并且在过去有过富有成效的合作。大部分实验工作将在印度科学研究所进行。美国合作者将在实验设计和结果分析方面提供指导，以及访问加州大学圣巴巴拉分校的雾化和表征设施。该研究有望与加州大学NSF材料研究实验室正在进行的结构陶瓷和功能无机氧化物合成研究产生互利的相互作用。该项目将为美国博士后提供一个独特的国际机会，参与班加罗尔印度科学院的实验研究。***本研究将研究增加高压直流（HVDC）线路和控制设备（如静态无功补偿器（SVC）、电力系统稳定器（PSS）和其他柔性交流传输系统（FACTS）设备）对电力系统小信号稳定性的影响。目标是建立一个整体线性化模型，包括上述装置，并检查它们对动态稳定性的相对影响。这项研究对于确定低频振荡和电压崩溃的原因具有重要意义。这两个问题都是两国公用事业公司面临的运营问题。伊利诺伊大学厄巴纳分校的M.A. Pai教授将与D.P. Sen Gupta & L.R. Padiyar，印度科学研究所，班加罗尔。这个研究团队是独一无二的。Pai教授是国际公认的使用直接方法实现电力系统稳定性的领导者，Sen Gupta和Padiyar已经完成了最先进的系统研究，包括FACTS和自适应PSS。范围：本研究将解决美国和印度电力系统领域的一个重要问题。虽然美国积累了很多经验，但印度的学术机构非常善于跟上最先进的技术，而且印度的电力行业在吸收技术方面相当成熟。此次合作的预期成果包括研究论文、伊利诺伊大学的课程开发以及由研究产生的高级专著。＊＊＊

9521945 Levi Description: This proposal is for a US-Indo research collaboration between materials scientists Carlos Levi of the University of California, Santa Barbara and Vikram Jayaram of the Indian Institute of Science, Bangalore. The project is entitled "Phase Selection in Ceramic Oxides Under Non-Equilibrium Conditions." The investigators will study the evolution of oxide microstructures in ceramic oxides synthesized under conditions wherein thermodynamic equilibrium is highly constrained. The program will focus on relatively simple binary and higher component systems using techniques with proven potential to bring about substantial metastability. Compositions produced in this manner will be heat treated to study the hierarchy of states by which the non- equilibrium structure evolves towards a more stable one. The primary objective is to enhance the understanding of phase selection processes, their relationship to fundamental forms of metastability, as well as their impact on microstructure evolution through subsequent transformations. Scope: The PIs have extensive experience in this area and have collaborated productively in the past. The bulk of the experimental work will be carried out at the Indian Institute of Science. The US collaborator will provide guidance in the design of experiments and analysis of results, as well as access to atomization and characterization facilities at the UC, Santa Barbara. The research is expected to generate a mutually beneficial interaction with the ongoing research on the synthesis of structural ceramics and functional inorganic oxides at the NSF Materials Research Laboratory at UC. This project will provide a unique international opportunity for a US Post- doc to participate in the experimental research at the IISc in Bangalore. *** This research will investigate small signal stability of electric power systems as affected by the addition of High Voltage DC (HVDC) lines and control devices such as Static Var Compensators (SVC), Power System Stabilizer (PSS) and other Flexible AC Transmission System (FACTS) devices. The objective will be to develop an overall linearized model to include the above mentioned devices and to examine their relative influence on dynamic stability. This research is important in determining the causes of low frequency oscillations and voltage collapse. Both of these are operating problems faced by utilities in both countries. Prof. M.A. Pai, University of Illinois Urbana will collaborate with Profs. D.P. Sen Gupta & L.R. Padiyar, Indian Institute of Science, Bangalore. The research team is exceptional. Prof. Pai is an internationally recognized leader in the use of direct methods for power system stability, Sen Gupta and Padiyar have done state-of-the-art system studies involving FACTS and adaptive PSS. Scope: This research will address a problem in the area of power systems that is of importance in the U.S. and India. While there is much accumulated experience in the U.S., the Indian academic institutions are very good at keeping up with state-of-the-art, and the power industry there quite mature in terms of their absorption of technology. The results expected from this collaboration include research papers, course development at the University of Illinois, and an advanced level monograph emanating from the research. ***