U.S.-Germany Cooperative Research in Ceramics and Holography

美德陶瓷和全息技术合作研究

• 批准号: 9024670
• 负责人: Ray Carpenter
• 金额: $ 1.15万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-08-01 至 1996-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9024670&HistoricalAwards=false
• 关键词: U.S.; Germany; Cooperative; Research; Ceramics

This award supports Dr. R. W. Carpenter, Director of the Center for Solid State Science, Arizona State University (ASU), to link the work of his research group in two related lines of materials science with two outstanding German research groups, the ceramics research laboratory of the German Aerospace Research Establishment (DFVLR), headed by Dr. Wolfgang Braue, and a group headed by Dr. Hannes Lichte of the University of Tubingen. With DFVLR, the ASU group will investigate the relationships among structures and properties and processing in structural ceramics. With Dr. Lichte, they will pursue a direct experimental investigation of conventional and holographic high resolution electron imaging of crystal lattice defects in specimens important for materials science. In both projects common specimens will be used for particular parts of each project. It is well known and central to materials science that the microstructure of all material objects such as structural ceramics or solid state electronic materials is quite dependent on the synthesis process. Arizona State University has novel and uncommon capabilities for analyzing the geometry of microstructures. DFVLR has unusual capabilities for processing and analyzing and measuring the properties of ceramics from starting materials through finished structural materials. This unique array of capabilities at the two cooperating laboratories enables detailed and controlled study of microstructural properties and their relationship to processing in this important class of structural materials. Collaboration with the group at the University of Tubingen focuses on the need to obtain better spatial resolution in the imaging of defects in crystal lattices to advance the frontiers of materials science research. Lattice defects, or interruptions in the periodicity of crystals, such as grain boundaries and interfaces, have major influences on the properties of materials. These are not easily predicted from theory, and experimental data are badly needed. The University of Tubingen possesses capability for electron holographic high resolution imaging. However, the apparently greatly enhanced data on lattice defects obtained by this new experimental method must be interpreted and compared to the most closely related data obtainable by existing and reliable methods. ASU possesses state of the art conventional high resolution electron microscopes that can be used for this purpose.

该奖项支持R博士。W.卡彭特， 亚利桑那州立大学固体科学中心 (ASU)，将其研究小组的工作与两个相关的 与两位杰出的德国材料科学家 研究小组，陶瓷研究实验室的 德国航空航天研究所，由 Wolfgang Braue博士和Hannes Lichte博士领导的小组 图宾根大学的教授。 通过DFVLR，ASU集团 将研究结构之间的关系， 结构陶瓷的性能和加工。 与dr. Lichte，他们将进行直接的实验调查 传统和全息高分辨率电子 样品中晶格缺陷的成像对于 材料科学 在这两个项目中， 用于每个项目的特定部分。 众所周知，材料科学的核心是， 所有物质物体的微观结构，如结构 陶瓷或固态电子材料是相当 这取决于合成过程。 亚利桑那州立大学 具有新颖而不寻常的能力， 微观结构的几何形状。 DFVLR拥有不同寻常的能力 用于处理、分析和测量 陶瓷从起始材料到成品结构 材料. 这两个独特的能力阵列 合作实验室能够实现详细和受控的 显微组织特性及其与 这类重要的结构材料的加工。 与图宾根大学的小组合作 重点是需要获得更好的空间分辨率， 晶格中缺陷的成像， 材料科学研究的前沿。 晶格缺陷， 或晶体周期性的中断，例如 晶界和界面，有重大影响， 材料的性质。 这些都不容易预测， 迫切需要理论和实验数据。 大学 拥有电子全息照相的能力 高分辨率成像。 然而，显然， 通过这种新的方法获得的关于晶格缺陷的增强数据 实验方法必须解释和比较， 现有的和可靠的可获得的最密切相关的数据 方法. ASU拥有最先进的常规高 分辨率电子显微镜可以用于此 目的.