## Xray DiffractionBack JP / EN

Numbering Code Year/Term U-ENG25 35233 LJ75 2021 ・ Second semester 2 Lecture Japanese Fri.2 OKUDA HIROSHI (Graduate School of Engineering Professor) Structural analyses by X-ray diffraction method will be given. In the lecture, the properties of X-rays, X-ray diffraction phenomena, crystallography, and diffraction by powder samples will be lectured. Students will learn the crystal structure analyses by X-rays through the course works of X-ray properties, crystalline structures, diffraction conditions, and reciprocal lattices. Basic properties of x-rays,3times,1.X-rays2.Continuous x-rays3.Characteristic x-rays4.X-ray absorption5.X-ray filter6.Generation of x-rays Crystallography,3times,1.One dimensional crystal symmetry2.7 crystal systems and 14 Bravais' lattices3. Practical examples of crystals4. Body-centered cubic, face-centered cubic and hexagonal close-packed lattices6. Crystalline structures of several compounds Description of crystal planes and directions,1time,1. Description of lattice planes and directions2. Stereo projection Diffraction by crystals,3times,1. Diffraction by crystalline lattice2. Bragg conditions and scattering angle3. Calculation of structure factors Diffraction by a powder sample,1time,1. Principle of diffractometer2. X-ray diffraction by powder sample Structural analyses of cubic systems,time,1. Determination of a lattice parameter in cubic systems2. Determination of Bravais' lattice in cubic systems Reciprocal lattice and diffraction condition,3times,1. Definition of reciprocal lattices2. Reciprocal lattice and real lattice3. Reciprocal lattice and diffraction condition The course will be evaluated from the scores of a midterm examination (40%) and a final examination (60%). None Concentrate on a lecture, and review the contents which you got by a lecture by rearanging your lecture note and studying any questions of lecture contents for at least 4 hours in each lecture.