将前端科学研究与实际工程问题融入教学——晶体缺陷的教学实践与探索  

INTEGRATING THE ADVANCED SCIENTIFIC RESEARCH AND PRACTICAL ENGINEERING ISSUES INTO THE TEACHING-TEACHING PRACTICE AND EXPLORATION OF CRYSTAL DEFECTS

作　　者：陶杰[1] 沈一洲[1] 项俊贤 TAO Jie;SHEN Yizhou;XIANG Junxian(College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing,Jiangsu 211106)

机构地区：[1]南京航空航天大学材料科学与技术学院,江苏南京211106

出　　处：《物理与工程》2024年第4期17-24,共8页Physics and Engineering

基　　金：国家一流课程建设项目,南京航空航天大学英才计划(2019JG0680K)的资助。

摘　　要：晶体缺陷是影响材料性能的关键因素,位错理论是提高材料强度的重要基础,已成为当今晶体塑性理论和材料强化理论的基石。由于其概念复杂、理论抽象,学生在学习过程中往往无法建立完整的晶体缺陷和位错理论的认知体系,缺乏用位错理论解决复杂材料工程问题的能力。本文从晶体变形与位错运动的基本规律出发,抓住位错交互作用的难点开展教学过程设计,引领学生演绎点、线、面、体缺陷之间的相互转化过程,并结合前端科学研究与实际工程问题,深化学生对晶体缺陷知识和理论的掌握;围绕课程思政、答疑思辨、过程考核等教学环节,系统总结了晶体缺陷与位错理论的课程教学实践与创新教学方法。theories,students often struggle to establish a complete understanding of crystal defects and dislocation theory during the learning process,leading to a lack of ability to solve complicated material engineering problems by means of dislocation theory.This paper starts from the fundamental laws of crystal deformation and dislocation movement,focusing on the chal-lenging aspects of dislocation interactions in the teaching process.It guides students in deducing the transformation processes between point,line,plane,and volume defects.Advanced scientific re-search and practical engineering issues are integrated into the teaching,deepening the studentsun-derstanding of the knowledge and theory of crystal defects.Finally,a systematic summary of the teaching practice and innovative teaching methods of crystal defect and dislocation theory was conducted around the ideology education,critical thinking and process assessment.

关 键 词：教学设计 晶体缺陷 位错理论 前端科学研究 实际工程问题 

分 类 号：G642.4[文化科学—高等教育学] O77-4[文化科学—教育学]