Acquisition of a Small Angle X-ray Scattering Facility at the University of Tennessee

田纳西大学购置小角度 X 射线散射设施

• 批准号: 0216252
• 负责人: Joseph Spruiell
• 金额: $ 24.47万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-01 至 2005-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0216252&HistoricalAwards=false
• 关键词: Acquisition; Small; Angle; ray; Scattering

This award from the Major Research Instrumentation program supports the acquisition of a Small Angle X-ray Scattering (SAXS) Facility at the University of Tennessee. The instrument will be used to characterize the structure of materials on a length scale of 1-100 nm. Current and future research that will benefit from the SAXS facility ranges from studies of the structure of 'soft materials' such as polymers to the more traditional 'hard materials.' The studies of soft materials include investigation of the morphology of (a) polymer blends and copolymers, (b) polymer crystallization, (c) polymer electrolytes, (d) polymer composites and (e) processed polymers (fibers, films, moldings, etc.). Studies of 'hard materials' include investigations of (a) the nanostructure of new metal oxide based materials, (b) the nanometer-size dispersions of metals and compounds in sapphire, (d) development of nanoparticles through pulsed laser ablation techniques, and (e) void formation in carbon fibers. An interesting overlap involves the use of microphase separated diblock and triblock copolymers as templates to synthesize new nanostructures, well ordered carbon nanotubes, and nanoscale magnetic wires. In addition, studies of X-ray scattering of materials will provide background for neutron scattering studies at Oak Ridge National Laboratory with the HFIR reactor upgrade and, in the longer term, the completion of the Spallation Neutron Source (SNS). This acquisition will (1) foster the development of new areas of research in nanoscience and new collaborations among UT faculty in science and engineering, especially in the soft materials area, (2) develop new collaborations among UTK faculty and students with scientists and engineers at Oak Ridge National Laboratory, and with and other internationally prominent researchers, (3) provide opportunities for SAXS measurements to investigators from neighboring institutions, especially those that have traditionally served underrepresented minorities.***This award from the Major Research Instrumentation program supports the acquisition of a Small Angle X-ray Scattering (SAXS) Facility at the University of Tennessee. The instrument will be used to characterize the structure of materials on a length scale of 1-100 nm.The SAXS system will serve faculty, postdoctoral research fellows, and students in a wide range of sub-disciplines of Materials Science, including polymer science and engineering, ceramics, metallurgy, and solid state physics. Examples of areas of study include investigation of the structure of (a) polymer blends and copolymers, (b) polymer crystallization, (c) polymer electrolytes, (d) polymer composites (e) processed polymers (fibers, films, moldings, etc.), (f) new metal oxide based materials, (g) the nanometer-size dispersions of metals and compounds in sapphire, (h) development of nanoparticles through pulsed laser ablation techniques, and (i) void formation in carbon fibers. This acquisition will (1) foster the development of new areas of research in nanoscience and new collaborations among UT faculty in science and engineering, especially in the soft materials area, (2) develop new collaborations among UTK faculty and students with scientists and engineers at Oak Ridge National Laboratory, and with and other internationally prominent researchers, (3) provide opportunities for SAXS measurements to investigators from neighboring institutions, especially those that have traditionally served underrepresented minorities.

来自主要研究仪器计划的这一奖项支持在田纳西大学收购小角X射线散射（SAXS）设施。该仪器将用于表征1-100 nm长度尺度上的材料结构。目前和未来的研究，将受益于SAXS设施的范围从研究的结构的“软材料”，如聚合物，以更传统的“硬材料”。软材料的研究包括（a）聚合物共混物和共聚物、（B）聚合物结晶、（c）聚合物电解质、（d）聚合物复合材料和（e）加工聚合物（纤维、薄膜、模制品等）的形态研究。“硬材料”的研究包括（a）新金属氧化物基材料的纳米结构的研究，（B）金属和化合物在蓝宝石中的纳米尺寸分散，（d）通过脉冲激光烧蚀技术开发纳米颗粒，以及（e）碳纤维中的空隙形成。一个有趣的重叠涉及使用微相分离的二嵌段和三嵌段共聚物作为模板来合成新的纳米结构、有序的碳纳米管和纳米磁性线。此外，X射线散射材料的研究将提供背景的中子散射研究在橡树岭国家实验室的HFIR反应堆升级，并在较长期内，完成的Spiritual中子源（SNS）。此次收购将（1）促进纳米科学研究新领域的发展和UT教师在科学和工程领域的新合作，特别是在软材料领域，（2）发展UTK教师和学生与橡树岭国家实验室的科学家和工程师，以及其他国际知名研究人员的新合作，（3）为邻近机构的研究人员提供SAXS测量的机会，特别是那些传统上为代表性不足的少数民族服务的机构。来自主要研究仪器计划的这一奖项支持在田纳西大学收购小角X射线散射（SAXS）设施。该仪器将用于表征1-100 nm长度范围内的材料结构。SAXS系统将服务于材料科学广泛子学科的教师，博士后研究员和学生，包括聚合物科学与工程，陶瓷，冶金和固态物理。研究领域的例子包括研究（a）聚合物共混物和共聚物的结构，（B）聚合物结晶，（c）聚合物电解质，（d）聚合物复合材料，（e）加工聚合物（纤维，薄膜，模塑件等），(f)新的金属氧化物基材料，（g）金属和化合物在蓝宝石中的纳米尺寸分散，（h）通过脉冲激光烧蚀技术开发纳米颗粒，以及（i）碳纤维中的空隙形成。此次收购将（1）促进纳米科学研究新领域的发展和UT教师在科学和工程领域的新合作，特别是在软材料领域，（2）发展UTK教师和学生与橡树岭国家实验室的科学家和工程师，以及其他国际知名研究人员的新合作，（3）为邻近机构的研究人员提供SAXS测量的机会，特别是那些传统上为代表性不足的少数民族服务的机构。