Acquisition of a Variable Temperature Four-Circle X-Ray Diffraction System

变温四环 X 射线衍射系统的获取

• 批准号: 9977614
• 负责人: Chang-Beom Eom
• 金额: $ 25.97万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-01 至 2000-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9977614&HistoricalAwards=false
• 关键词: Acquisition; Variable; Temperature; Four; Circle

9977614EomThis project will use support from the Major Research Instrumentation program to acquire a variable temperature four-circle x-ray diffraction system to be used as a shared facility within North Carolina Research Triangle area. A versatile system that satisfies all of the experimental requirements has been identified. It consists of key components from three different vendors: (1) an 18 kW rotating anode X-ray generator (Rigaku UltraX 18SFHB), (2) a four-circle goniometer (Huber 430-440-512.1) , (3) graphite and Ge monochromators and He-filled beam path, detectors, optical table, radiation shield enclosure, electronics and control and analysis software (Blake Industries), (4) a low temperature (6.5- 350K) cryostat and compressor (APD cryogenics CSW-202G,), and (5) a high temperature reaction Chamber (RT - 900 C) (Enraf-Nonius). The instrument will be used to perform in-situ and ex-situ x-ray diffraction experiments, in conjunction with electrical and magnetic property measurements to study the crystal structure, three-dimensional strain states, defects, phase transition, morphology, and their roles in materials properties. It will also be used to monitor solid-solid and solid-gas reactions in-situ to determine the conditions and mechanisms by which the reactions take place. This will facilitate synthesis and fabrication of novel solid state materials and investigation of their structures and electrical and magnetic properties. This instrument will enhance the research capabilities of five members from three departments at Duke University and the University of North Carolina (UNC), as well as significantly enhancing the educational mission of the Materials Science Programs at Duke and UNC. The variable temperature four-circle x-ray diffraction system is an ideal instrument for a laboratory component of courses in X-ray diffraction and analysis and will be used for training students at Duke and UNC in state-of-art materials characterizations. It will also provide an outreach mission to other research institutes and industries in the North Carolina Research Triangle Area. Nanostructured and thin film novel materials are of national interest because of their applicability to a wide variety of electronic, magnetic and optical devices. Structural analysis of materials on an atomic scale is very important for understanding material properties. Furthermore, it greatly facilitates the synthesis of new materials and the study of fundamental physical phenomena. The variable temperature four-circle x-ray diffraction system that will be acquired using Major Research Instrumentation program funds will enhance the research capabilities of researchers in the North Carolina Research Triangle Area, as well as provide a vehicle for training students in state-of-the-art materials characterization techniques.

9977614 EOMTHIS项目将使用主要研究仪器计划的支持来获取可变的温度四环X射线衍射系统，以用作北卡罗来纳州研究三角区域内的共享设施。 已经确定了满足所有实验要求的多功能系统。 It consists of key components from three different vendors: (1) an 18 kW rotating anode X-ray generator (Rigaku UltraX 18SFHB), (2) a four-circle goniometer (Huber 430-440-512.1) , (3) graphite and Ge monochromators and He-filled beam path, detectors, optical table, radiation shield enclosure, electronics and control and analysis software (Blake （4）低温（6.5-350k）低温和压缩机（APD低温CSW-202G）和（5）高温反应室（RT-900 C）（Enraf-Nonius）。该仪器将与电气和磁性特性测量相结合，以研究晶体结构，三维应变状态，缺陷，相变，形态及其在材料特性中的作用。 它也将用于监测原位的固体固体和固体气体反应，以确定反应发生的条件和机制。 这将促进新型固态材料的合成和制造，并研究其结构以及电气和磁性。 该工具将增强杜克大学和北卡罗来纳大学（UNC）三个系的五名成员的研究能力，并显着增强了杜克和UNC材料科学计划的教育任务。 可变温度四环X射线衍射系统是X射线衍射和分析课程的实验室组件的理想工具，将用于培训Duke和UNC在最先进材料表征中的培训学生。 它还将为北卡罗来纳州研究三角地区的其他研究机构和行业提供外展任务。纳米结构和薄膜的新颖材料具有国家感兴趣，因为它们适用于各种电子，磁性和光学设备。 原子量表上材料的结构分析对于理解材料特性非常重要。 此外，它极大地促进了新材料的合成和基本物理现象的研究。 使用主要研究仪器计划基金将获得的可变温度四环X射线衍射系统将增强北卡罗来纳州研究三角区域研究人员的研究能力，并为培训学生最先进的材料表征技术提供培训的工具。