PR3010 Surface Modifications and Analytical Techniques Syllabus:
PR3010 Surface Modifications and Analytical Techniques Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
• To provide overview of in the fields of corrosion and its control
• To create awareness on types, properties and applications of abrasives and Refractories.
• To introduce to various metallic coatings processes
• To educate on various types of chemical conversion and organic coatings
• To introduce to various surface characterization tools.
UNIT – I CORROSION AND ITS CONTROL
Introduction- chemical and electrochemical corrosions- mechanism of electrochemical and galvanic corrosions- concentration cell corrosion- passivity- soil, pitting, inter-granular, water line, stress and microbiological corrosions- galvanic series- factors influencing corrosion – measurement of corrosion rate. Corrosion control – material selection and design – electrochemical protection – sacrificial anodic protection and impressed current cathodic protection.
UNIT – II ABRASIVES AND REFRACTORIES
Abrasives: definition, classification or types, grinding wheel, abrasive paper and cloth. Refractories: definition, characteristics, classification, properties – refractoriness and RUL, dimensional stability, thermal spalling, thermal expansion, porosity; Manufacture of refractories – general method; acidic refractories – fire clay, silica; basic refractories – magnesite, dolomite; neutral refractories – silicon carbide, zircon.
UNIT – III METALLIC COATINGS
Definition – methods of metallic coating, hot dipping – galvanizing, tinning, metal cladding, electroplating, electroless plating. Various other metallic coatings – displacement plating Kanigen process – metal spraying or metallised coating – cementation or diffusion coatings.
UNIT – IV CHEMICAL CONVERSION AND ORGANIC COATINGS
Chemical Conversion coatings- Types- phosphate, chromate, chemical oxide and anodized (Aluminum) coatings -Organic coatings- paint, vehicle or drying oil, thinners, driers- Formulation of paints, failure of paint film- Varnishes, Enamels,Lacquers, EPI coating, Emulsion Paints-types, advantages and disadvantages – Special paint.
UNIT – V SURFACE CHARACTERIZATION
Surface–Interface–Bulk–Definition, – Principle- instrumentation- block diagram-data analysis and applications of Scanning Electron Microscopy (SEM) and Transmission electron microscopy (TEM)– Atomic Force Microscopy (AFM), Surface Analysis by Brunauer–Emmett–Teller (BET) Method –X-Ray Photoelectron Spectroscopy, Surface coating thickness measurements (thin and thick –Profilometry).
TOTAL: 45 PERIODS
COURSE OUTCOMES
Upon successful completion of the course, students should be able to:
CO1: To review the various corrosion and methods to combat corrosion.
CO2: To compare the properties and typical applications of abrasives and refractories.
CO3: To discuss on the various metallic coatings processes.
CO4: To choose a type of chemical conversion and organic coating for typical applications.
CO5: To state the various surface characterization tools and their capability.
TEXT BOOKS:
1. Kannan P., Ravikrishnan A., “Engineering Chemistry”, Sri Krishna Hitech Publishing Company Pvt. Ltd. Chennai, 2014.
2. Jain P.C. & Monica Jain., “Engineering Chemistry”, Dhanpat Rai Publishing Company (P) Ltd, New Delhi, 2014.
REFERENCES:
1. Dara S.S, Umare S.S. “Engineering Chemistry”, S. Chand & Company Ltd., New Delhi, 2014.