构建程序模拟仿真案例优化X射线衍射发生条件以及衍射形式的教学  

The Compilation of Specific Case of for Computer Simulations for the Optimizations of Teachings of the Occurrence Conditions of X-ray Diffraction and Subsequent Different forms of Diffractions

作　　者：郭腾 闫浩然 丁志杰 郭雨 陈君华 Guo Teng;Yan Haoran;Ding Zhijie;Guo Yu;Chen Junhua(College of chemistry and materials engineering,Anhui Science and Technology University,Bengbu 233030,China)

机构地区：[1]安徽科技学院化学与材料工程学院,安徽蚌埠233030

出　　处：《山东化工》2021年第10期243-247,共5页Shandong Chemical Industry

基　　金：安徽省高等学校省级质量工程项目(2020jyxm0410);安徽省高校优秀拔尖人才培育资助项目(gxgnfx2019020);2020年度安徽省教育厅省级教学示范课程建设项目(“材料分析与测试技术”课程)。

摘　　要：埃瓦尔德球理论是X射线衍射学中用以说明在晶体中衍射发生条件的重要理论,针对该理论的良好理解,有助于相关专业学生在材料分析学课程后期的学习中深入理解和掌握各种形式的衍射技术的原理、设备以及分析方法等内容。为了强化教学效果,在合理设计教学用矢量模型的基础上,我们通过引入diffractOgram程序以设计多学科交叉教学案例,通过案例法教学,能够在充分演示埃瓦尔德球衍射理论的同时,进一步使学生强化各种形式的衍射(劳厄法、转动晶体法等)的原理、结果的解释乃至结晶学专用程序的理解,训练学生前后联系学习的能力,从而收到了良好的教学效果。The contents of Ewald's sphere constituents one of the fundamental theories in X-ray diffraction analytics,which is usually employed for the illustrations of the occurrence conditions of X-ray diffraction in crystals.The formings of fine comprehensions for this theory can help the students in relative specialties to better understand and grasp of the principles,instruments or analysis methods of various diffractions in real circumstances.For the enhancement of teaching effects for such knowledge point with the students,suitable vectorial models were designed and illustrated,and then the diffractOgram program package have been introduced to compile the new teaching case with crossing discipline characteristics;and by the aids of teaching with case method,detailed and intuitive illustrations of diffraction principles of Ewald's sphere can be made in the teaching of such section,and for students further deepen comprehensions for subsequent teaching contents can be archived,in which include the principles,instruments,explanations for diffraction results,or computer programs optimized for crystallography,for different forms of diffractions in real circumstances(such as Laue method,or rotating cyrstal method);and by the way for students the study level for contextual associating can be enhanced,then excellent teaching effects have been obtained.

关 键 词：埃瓦尔德球 diffractOgram程序 倒易点阵 计算机模拟 

分 类 号：G642.0[文化科学—高等教育学]