23CHT102 CHEMISTRY FOR ENGINEERING MATERIALS

About Course

Engineering chemistry for mechanical students focuses on the practical understanding of materials and their behavior in real-world applications. It covers corrosion control, which helps prevent material degradation in machines; nano chemistry, which enables advanced coatings and high-performance materials; alloys, which improve strength, durability, and resistance of components; fuels, which are essential for energy generation and efficiency; and water technology, which ensures proper cooling, lubrication, and prevention of scaling in systems. This knowledge is crucial for mechanical engineers to design reliable, efficient, and long-lasting equipment, reduce maintenance costs, and enhance overall performance in industries such as automotive, manufacturing, and power generation.

Course Content

UNIT I – CORROSION AND ITS CONTROL
Corrosion - Chemical corrosion (Oxidation corrosion)-Electrochemical corrosion-Types of electrochemical Corrosion -Corrosion control-Corrosion inhibitors- Cathodic protection (Sacrificial anodic protection and Impressed current Cathodic protection) – Protective coating-Paints and its constituents -Fire Retardant paint - Electroplating (Au)

UNIT II – NANOMATERIALS
Nano materials and Bulk materials - Size dependent properties (Optical, Electrical and Mechanical) ᧓Synthesis - Sol gel method - Chemical Vapour Deposition, Solvo thermal, laser ablation - Types of nanomaterials - Carbon nanotubes ᧓ Properties and uses - Application of Nanotechnology in Electronics Energy science and Medicine.

UNIT III – FUELS AND COMBUSTION
Fuels- Solid Fuel-Coal-classification-manufacture of metallurgical coke by Otto-Hoffmann method- Liquid Fuel–-Synthetic petrol-Fischer and Bergius method- - Gaseous fuels- CNG and LPG.- Bio fuels: Categories, Types –Biodiesel, Biogas.Combustion-Calorific value-Gross and Net calorific value -Definition -Flue gas analysis by Orsat Apparatus.

UNIT IV – WATER TECHNOLOGY
Introduction-Hard water and Soft water-Hardness-Types-Boiler Troubles- Water Softening – External treatment-Demineralization-Internal Treatment- Water Quality parameters (pH, TDS, Chloride, Fluoride, Sulphate, Iron, BOD ,COD and Heavy metals)- Municipal water treatment - Desalination –Reverse osmosis.

UNIT V – ALLOYS AND ENGINEERING MATERIALS
Alloys-classification -Ferrous alloys (Nichrome and stainless steel only)-Non-ferrous alloys (brass and bronze) Heat treatment of steel- Definition of light metals, Characteristics and applications of light metals-Super alloys - Lubricants –Solid lubricants (Graphite and Molybdenum disulphide )-Mechanism of Lubrications. Cement – Portland cement-Chemical composition of Portland cement. Functions and limitations of cement ingredients.

TEXT BOOKS
T1 P.C.Jain&Monicka Jain, “Engineering Chemistry”, Dhanapat Rai Publishing Company Pvt.Ltd. 2017. T2 Wiley, “Engineering Chemistry”, John Wiley & Sins. InC, USA (2014]

REFERENCES
R1 B. Sivasankar “Engineering Chemistry” Tata McGraw-Hill Pub. Co. Ltd, New Delhi (2009). R2 Shikha Agarwal, Engineering Chemistry-Fundamentals and Applications, Cambridge University Press, Delhi, Second Edition, 2019.

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