Acquisition of X-ray Powder Diffraction Equipment for 21st Century Materials Research and Education

购置X射线粉末衍射设备用于21世纪材料研究和教育

• 批准号: 0315828
• 负责人: Sarah Tolbert
• 金额: $ 13.2万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2005-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0315828&HistoricalAwards=false
• 关键词: Acquisition; ray; Powder; Diffraction; Equipment

Advances in the development of materials having desired properties provide the basis of future technologies. Many advances are dependent on synthesis and careful characterization. This grant provides support for an X-ray powder diffractometer for use in research at UCLA on the development of new materials that address several areas of need including chemical control of nanostructured inorganic materials; nitrides; antiferroelectric liquid crystals; and mesostructured thin films. This new instrument will provide rapid data collection capabilities important for dynamic studies of sample reactions as a function of temperature. This new instrument provides for low angle measurements, important for structure measurements, and simultaneous collection of low and high angle X-ray scattering data. The research topics include the synthesis of Zintl phases, the control of high temperature phase stability of tetragonal zirconia, development of metathesis routes to nitrides by control of pressure and/or temperature, the design of antiferromagnetic liquid crystals and the design of mesostructured thin films. The new instrument will be used primarily by the UCLA Department of Chemistry and Biochemistry crystallography laboratory.This work has potential benefits in the near and long term: potential to impact fundamental technology related to the synthesis, assembly and characterization of materials with future practical applications and, more immediately, through the training of graduate and undergraduate students. The UCLA Department of Chemistry and Biochemistry will place this instrument in a shared facility, accessible to all graduate students in the department. This department has eleven tenure track women faculty; also, UCLA is able to attract underrepresented students from across the nation. In keeping with the educational mission of the University, trained student technicians and faculty operate the instruments in the X-ray laboratory.

具有理想性能的材料的发展进步为未来的技术提供了基础。许多进展依赖于合成和仔细的表征。这项拨款为加州大学洛杉矶分校的研究提供了x射线粉末衍射仪的支持，用于开发新材料，解决几个领域的需求，包括纳米结构无机材料的化学控制；氮化物;反铁电液晶；以及介观结构薄膜。这种新仪器将提供快速数据收集能力，这对于样品反应作为温度函数的动态研究非常重要。这种新仪器提供了低角度测量，对结构测量很重要，同时收集低角度和高角度x射线散射数据。研究课题包括Zintl相的合成、四方氧化锆高温相稳定性的控制、通过控制压力和/或温度来发展氮化物的复分解路线、反铁磁液晶的设计和介孔结构薄膜的设计。新仪器将主要用于加州大学洛杉矶分校化学系和生物化学系晶体学实验室。这项工作在近期和长期都有潜在的好处：有可能影响与材料的合成、组装和表征相关的基础技术，并具有未来的实际应用，更直接的是，通过对研究生和本科生的培训。加州大学洛杉矶分校化学与生物化学系将把这个仪器放在一个共享的设施中，所有该系的研究生都可以使用。这个系有11位终身教职的女教员；此外，加州大学洛杉矶分校能够吸引来自全国各地代表性不足的学生。为了与大学的教育使命保持一致，训练有素的学生技术人员和教师在x射线实验室操作仪器。