JNTUK B.Tech Experimental Techniques in Metallography gives you detail information of Experimental Techniques in Metallography R13 syllabus It will be help full to understand you complete curriculum of the year.
(Course objective: The main scope and objective is to give an overall view on the fundamental aspects of experimental techniques in metallography)
UNIT – I : (Learning Objectives: To get acquainted with the sample preparation required for metallography) Polishing methods; Etching methods; light sources in optical microscopy; Numerical aperture, Resolution, depth of focus. Objective and eyepiece in optical microscope; lense defects; Optical methods of enhancing contrast dark field illumination; Polarized light phase contrast; Filters.
UNIT-II : (Learning Objectives: To get knowledge over diffraction patterns during the interaction of electron beams with matter) Wave nature of electrons; Electron wavelengths; Interaction of electron beams with matter; effect of crystal structure; Representation of diffraction patterns- Reciprocal lattice and Reflecting sphere.
UNIT-III : (Learning Objectives: To get acquainted with the working principle and usage of electron microscope) Electron microscope: Electron gum; Electromagnetic lenses and their observations; Resolving power; Depth of field and depth of focus; Fresnels fringer; Bright and dark field; selected area diffraction; Advantage and disadvantages of electron microscope.
UNIT-IV : (Learning Objectives: To get knowledge over the principle and working of TEM) Specimen preparation for the TEM; Replica methods; Preparation of thin foils from bulk specimens; direct formation of thin films.
Transmission electron microscopy: Brief description of CTEM; Consideration of resolution; Topographical studies; Image contrast from stacking faults; Twinning; double diffraction and kikuchi lines.
UNIT-V : (Learning Objectives: To get acquainted with the working principle and usage of SEM) Scanning electron microscope; basic priciples; resolving power; specimen requirement for SEM; preparatory methods for SEM specimen.
UNIT-VI : (Learning Objectives: To get thorough knowledge over the applications of SEM)
Application of SEM: Different types of modes used in SEM and their applications.
(Assessment: The student should be evaluated based on the assignments and objective tests. Emphasis should be given by conducting tutorial classes (With a focus on academically weak students) at the end of each unit.)
TEXT BOOKS
- The Principles of metallogrphy laboratory practices –George L.Khel-Eurasia publishing house(Pvt Ltd)
- Transmission electron Microscopy of metals –Garet Thomas.-John wiley and sons.
REFERENCES
- Modern Metallographic Techniques & their application – victor phillips.
- Physical Metallurgy, Part – I – RW Chao and P. Haasan.
- Experimental Techniques in Physical Metallurgy – VT Cherepin and AK Mallik.
- Electron Microscopy in the study of materials –P.J.Grundy.
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