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MY1402 POLYMERS AND CERAMICS
1. CLASSIFICATION OF POLYMERS Types of polymers: addition, condensation and copolymers, Crystalline and amorphous polymers, Number Average Molecular weight and weight average molecular weight and their uses Experimental determination of molecular weight not included, Glass transition temperature and its significance, Plastics, thermoplastics and thermosets, examples, structure, properties and applications of engineering plastics Polyethylene, polypropylene, polystyrene, polyvinylchloride, polytetrafluoroethylene, poly oxymethylene, polyphenylencoxide, po1yetherketone, Polyurethane and polymethyl methacrylate. Elastomers, Engineering rubbers, natural rubber. Styrene, butadiene rubber, nitrite rubbers, Structure properties and applications. 2. BEHAVIOUR OF POLYMERS Viscoelasticity, Concept of creep and stress relaxation in polymers. Introduction to yielding and fracture of polymers, Crazing of polymers. Brief idea of fracture mechanics. Simple problems. 3. PROCESSING OF POLYMERS Brief description of equipments and process details of Extrusion, injection moulding, Reaction and Reinforced Reaction Injection Moulding, thermoforming, Blow moulding, compression moulding and calendaring. Concept of Polymer Design Selection criteria, examples 4. ENGINEERING CERAMICS Ceramic crystal structures, Sodium chloride, caesium chloride, alumina, spinel and fluorite structures, examples. Co-ordination number and ionic radius ratio, Pauling's Rules. Simple problems involving Packing Fraction, Ceramics for mechanical functions. Abrasives, properties and applications SiC. Cubic Boron Nitride (CBN), properties and applications. Ceramics for Electrical and Insulating Functions, Barium Titanate and its modifications, insulating porcelains, properties and applications. Ceramics for magnetic functions, Normal and inverse spinel structure – Zinc, Nickel, Manganese and Iron ferrites, structure properties and applications Ceramics for thermal functions. Refractories, Desirable characteristic, applications, Ceramics for nuclear applications.
5. FORMING OF CERAMICS AND GLASSES Brief description of slip and slurry casting, applications. Powder processing equipment and process details of hot pressing. Hot Isostatic Pressing and Cold Isostatic pressing, Liquid Phase sintering. Types of glasses, structure, properties and applications. Blowing, pressing, drawing, rolling and casting, Pilkington process for float glass. TEXT BOOKS 1. Brent A Strong, “Plastics: Materials and Processing”, Prentice Hall Inc., USA. 1997. 2. Michel Barsoum, “Fundamentals of Ceramics”, McGraw-Hill Publishing Co. Singapore, 1997. 3. Nobuka Ichinose, “Introduction to Fine Ceramics”, John Wiley & Sons. USA.1987.
REFERENCES 1. Raymond Seymour, “An Introduction to Polymer Chemistry”, McGraw-Hill Book Co., New York, USA,1971. 2. Charles A Harper, “Handbook of Plastics, Elastomers and Composites”, McGraw-Hill Publishing Co., USA, 1997. 3. McCrum N.G., Buckley C P. and Bucknall C.B., “Principles of Polymer Engineering”, Oxford University Press, UK, 1992. 4. Kingery W.D., “Introduction to Ceramics”, John Wiley, USA, 1960. 5. Van Vlack.K.H., “Physical Ceramics for Engineers”, Addison Wesley, USA, 1964.
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| Author: Vidya 23 May 2008 | Member Level: Diamond Points : 2 |
useful topic
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| Author: Chithra 24 May 2008 | Member Level: Gold Points : 2 |
nice information
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