Material Science

This course is a lecture and hands-on discussion on the materialographic preparation techniques such as cross sectioning, grinding, polishing, lapping, mechanical delayering, and ion milling. The participant will be able use a precision grinder polisher and learn how to prepare the samples precisely and with high quality. They will learn the theory and various method of sample preparation. They will also utilize a more advance technique using Ion Milling to prepare soft and difficult samples prior inspection. Thus, also have the opportunity to learn the basics of SEM (Scanning Electron Microscope) imaging and the use of Electron Backscatter Diffraction (EBSD).

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Fractography is the study of fracture surfaces in-order-to determine the relation between the microstructure and the mechanism(s) of crack initiation and propagation and, eventually, the root cause of the fracture.

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Energy Dispersive X-ray Spectroscopy (EDS) is an analytical technique used for the elemental analysis or chemical characterization of a sample. It relies on the interaction between X-rays and the sample to generate characteristic X-rays that are unique to each element. When the sample is bombarded with high-energy electrons, it causes the ejection of inner-shell electrons, creating vacancies. Electrons from higher energy levels then fill these vacancies, emitting X-rays in the process. The energy of these emitted X-rays is measured and used to identify and quantify the elements present in the sample.

EDS is widely used in conjunction with Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) to provide detailed compositional information at microscopic levels. This technique is essential in various fields such as materials science, geology, and biology for tasks like identifying contaminants, analyzing failure mechanisms, and studying the composition of complex materials.

This course provides the participants with an advanced knowledge on Energy Dispersive X-ray Spectroscopy and desires to expand their knowledge on data interpretation in-order-to equip themselves for a more accurate qualitative and quantitative analysis.

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