2020 Practical SEM observation techniques 2

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Academic unit or major
Graduate major in Materials Science and Engineering
Instructor(s)
Muraishi Shinji  Nakamura Yoshio 
Course component(s)
Exercise     
Day/Period(Room No.)
Tue1-2(指導教員に相談のこと)  
Group
2
Course number
MAT.M422
Credits
1
Academic year
2020
Offered quarter
2Q
Syllabus updated
2020/3/24
Lecture notes updated
-
Language used
Japanese
Access Index

Course description and aims

Students will learn the fundamental techniques of SEM imaging and evaluation methods via operation of SEM.

Student learning outcomes

The goal of this class is to achieve several important observation and evaluation techniques through SEM operatoin by yourself.

Keywords

scanning electron microscopy, SEM, secondary electron image, back scattering electoron image, wave dispersive X-ray spectroscopy, energy dispersive X-ray analysis

Competencies that will be developed

Specialist skills Intercultural skills Communication skills Critical thinking skills Practical and/or problem-solving skills

Class flow

Student will conduct SEM operation under the instruction of teaching staffs.
(instructor: Masaru Tada, Ookayama Materials Anaslysis Devision, Technical Department)

Course schedule/Required learning

  Course schedule Required learning
Class 1 Theory and practical operation To understand the principals for SEM imaging, e.g. magnification, focus, astigmatism, brightness, contrust, etc. To achieve the principles of scanning electron microscope in terms of observation, operation, samples.
Class 2 Geometrical effects on secondary electron imaging To understand irradiation and emittion of electrons, oblique angle of sample surface and its contrast, emittion of secondary electrons from different surface morphology, relation of SEM image and position of detector, charge-up and conductivity of sample surface To understand that secondary electron image (SEI) is greatly influenced by material, sample preparation, surface roughness, etc.
Class 3 Effect of acceleration voltage and irradiation current To understand working distance and focus level, effect of acceleration voltage and irradiation current on secondary electron image, damage of sample surface during observation to understand the effect of acceleration volutage and irradiation current on SEI
Class 4 Back scattering electron imaging To understand SEI (secondary electron image) and BEI(back scattering electron imaging, or, composition image) and several imaging techniques associated with composition and topology of sample surface, sample inclination, channeling contrast, etc. to understand the difference between back scattered image (BEI) and SEI
Class 5 WDS analysis I To understand principals of characteristic X-ray and spectroscopy (EDS, WDS) BEI and WDS analysis Sample height and WDS spectrum Quantitative analysis To understand composition analysis in terms of EDS (enegy dispersive spectroscopy) and WDS (wave dispersive spectroscopy)
Class 6 EDS analysis I To understand EDS spectrum, Peak identification, Spot analysis, Signal and Noise ratio of EDS and WDS To understand peak identification by EDS analysis.
Class 7 EDS analysis II To understand EDS mapping of surface with certain roughness To understand the influence of surface roughness and the image quality of EDS mapping.

Textbook(s)

e.g., "SHIN SOUSAGATA DENSHI KENBIKYO"(NIHON KENBIKYO GAKKAI)

Reference books, course materials, etc.

Handout will be given by instructor.

Assessment criteria and methods

General discussion will be made during the period of evaluation test and supplementary classes.
Achievement will be evaluated by the quality of assignments (100%)

Related courses

  • MAT.M313 : Introduction to solid materials
  • MAT.M204 : Introduction to Metallurgy
  • MAT.M305 : Ferrous Materials I - Fundamentals of Iron and Steels
  • MAT.M306 : Ferrous Materials II - Principles for Applications
  • MAT.M307 : Science and Engineering of Non-ferrous Materials
  • MAT.M207 : Phase Diagram and Stability in Metals
  • ZUF.M319 : Phase Stability and Transformations in Metals
  • MAT.M411 : Phase Transformation and Microstructure Control
  • MAT.M412 : Reliability and Durability of Metals and Alloys

Prerequisites (i.e., required knowledge, skills, courses, etc.)

Fundamental knowledge of material science is recommended.
Due to the reason of practical operation of SEM, number of students is quite limited.
Application imformation will be provided in advance of evely quarter, pls find the announce represented at S8-build.

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