MRI: Acquisition of a Multi-User, High Resolution, Research Grade X-ray Diffractometer (XRD)

技术摘要MSU将获得一个新的高分辨率，研究级XRD，以支持我们不断扩大的材料研究计划。 该仪器将配置不同的载物台和光学器件，以支持各种分析技术，指导纳米材料、薄外延膜和纹理控制的开发。 最先进的XRD将用于研究与先进制造工艺相关的广泛问题，其中包括：用于剥离纳米粘土的分散技术的有效性;粘土模拟物中的相识别;低成本，无缺陷SiC半导体的制造;以及通过搅拌摩擦焊中的工艺参数优化来控制残余应力。 XRD还将用于广泛的推广和教育计划，旨在培训我们的下一代工程师和科学家进行跨学科团队合作。 我们的中央设施，电子显微镜中心，有一个互动的设置，从校园内的任何地方，并在整个K-12教育系统在密西西比查看设备和数据。 目前提供的夏季教师外联方案被用来宣传这一资源。 我们希望通过为MSU的工程和科学界提供现代材料表征和分析仪器来促进研究和教育的整合。 工程材料的内部结构或原子排列决定了我们使用的所有材料的最终可靠性和性能。 为了降低运输行业中使用的许多产品的成本，正在开发合成和制造材料的新方法。 这些新材料和工艺的使用依赖于确定其内部结构并验证不存在可能导致过早失效的缺陷或内应力的能力。 XRD的使用对于研究加工技术如何影响内部结构至关重要。 密歇根州立大学的新XRD将大大提高我们材料科学研究计划的现有能力，为许多应用生产新的新型材料，包括：提高汽车安全性，开发混合动力汽车，制造用于太空探索的运载火箭和消费电子产品。 XRD还将极大地促进现有的推广和教育计划，以培养下一代工程师和科学家了解内部结构和性能之间的关系。 几个实验计划将从互动设置通过密西西比公共广播网络广播。 计划为K-12学生进行的一项实验是使用XRD来研究巧克力加工过程如何影响内部结构和味道。

Technical AbstractMSU will acquire a new high resolution, research grade XRD to support our expanding materials research programs. The instrument will be configured with different stages and optics to support a variety of analysis techniques to guide the development of nanomaterials, thin epitaxial films, and texture control. The state-of-the-art XRD will be used for research into a broad range of problems related to advanced manufacturing processes which include: effectiveness of dispersion techniques for exfoliating nanoclays; phase identification in clay mimics; fabrication of low cost, defect free SiC semiconductors; and control of residual stresses by process parameter obtimization in friction stir welding. The XRD will also be used for an extensive set of outreach and educational programs targeted at the training of our next generation of engineers and scientists for interdisciplinary teamwork. Our centralized facility, the electron microscopy center, has an interactive setting for viewing of equipment and data from anywhere on campus and throughout the K-12 educational system in Mississippi. Currently offered summer Outreach Programs for Teachers are used to advertise this resource. It is our desire to foster the integration of research and education by providing modern materials characterization and analysis instrumentation to the engineering and scientific community at MSU. Lay AbstractThe internal structure, or arrangement of atoms, in engineering materials is responsible for the ultimate reliability and performance of everything that we use. To reduce costs of many of the products used in the transportation industry, new methods to synthesis and fabricate materials are being developed. Use of these new novel materials and processes relies on the ability to determine their internal structure and verify the absence of defects or internal stresses that could result in premature failure. The use of XRD is central to investigating how the processing technique affects the internal structure. The new XRD at MSU will greatly enhance the existing capabilities of our materials science research programs to produce new novel materials for many applications including: improved automotive safety, development of hybrid automobiles, fabrication of launch vehicles for space exploration, and consumer electronics. The XRD will also greatly contribute to the existing outreach and education programs to train the next generation of engineers and scientists in the relationship between internal structure and properties. Several experiments are planned which will be broadcast from the interactive setting through the Mississippi Public Broadcast network. One experiment planned for the K-12 students is the use of the XRD in the investigation of how modifying the processing of chocolate affects the internal structure and the resulting taste.