X-Ray Diffractometry Applications for Geological Engineering and Geology Undergraduates

X 射线衍射测量在地质工程和地质学本科生中的应用

• 批准号: 9950729
• 负责人: S.Douglas McDowell
• 金额: $ 8.05万
• 依托单位: Michigan Technological 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: 1999-09-15 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9950729&HistoricalAwards=false
• 关键词: Ray; Diffractometry; Applications; Geological; Engineering

Geological and other engineers who routinely work with fine grained Earth materials are rarely trained in the X-ray diffractometry techniques needed to identify the minerals that make up those materials. Diffractometry is not normally applied until after material failure has ocurred, when specialists are brought in to determine the cause of failure. In this project, the Department of Geological Engineering and Sciences is installing a modern X-ray diffractometer and developing a series of laboratory modules that will cover diffractometry applications that are of most use to practicing engineers. These modules include: basic mineral identification methods, quantitative diffraction techniues, particle size analysis, and especially the specialized diffractometry procedures needed to accurately characterize the clay menerals, a mineral group that is of major use in engineering. The objective is to produce graduates that will be able to decide when X-ray diffractometry techniques need to be applied, how to prepare representative analyses, where the analyses can be carried out, and how to interpret the results in a meaningful way. This educational approach is adapted from the geology departments at Smith, Carleton, Central Washington, Indiana, and Purdue Universities. The long term objective is to make other professional engineers aware of the usefulness of diffractometry in solving real engineering problems, so that the method becomes much more generally applied than at present.Additional modules, designed for Geology and Earth Science Education majors, will cover a variety of topics with the objective of preparing these students to utilize diffractometry in teaching and research. In conjunction with the A.E. Seaman Mineral Museum, X-ray diffractometry applications in mineralogy will be demonstrated as a means of introducing modern scientific technology to K-12 teachers and members of the general public, in a summer field mineralogy class offered at the museum.

经常处理细粒地球材料的地质工程师和其他工程师很少受过x射线衍射技术的培训，而x射线衍射技术是识别构成这些材料的矿物所必需的。通常情况下，只有在材料发生故障后，专家来确定故障原因时，才会使用衍射仪。在这个项目中，地质工程与科学系正在安装一台现代x射线衍射仪，并开发一系列实验室模块，这些模块将涵盖对执业工程师最有用的衍射仪应用。这些模块包括：基本的矿物鉴定方法，定量衍射技术，粒度分析，特别是专门的衍射程序需要准确表征粘土矿物，矿物组是在工程中主要使用。目标是培养能够决定何时需要应用x射线衍射技术，如何准备有代表性的分析，在哪里进行分析，以及如何以有意义的方式解释结果的毕业生。这种教育方法改编自史密斯大学、卡尔顿大学、中华盛顿大学、印第安纳大学和普渡大学的地质系。长期目标是使其他专业工程师意识到衍射法在解决实际工程问题中的有用性，从而使该方法比目前得到更广泛的应用。额外的模块是为地质学和地球科学教育专业的学生设计的，将涵盖各种主题，目的是让这些学生准备好在教学和研究中使用衍射法。与A.E. Seaman矿物博物馆合作，x射线衍射法在矿物学中的应用将在博物馆举办的夏季实地矿物学课上展示，作为向K-12教师和一般公众介绍现代科学技术的一种手段。