1. ENGINEERING MATERIALS
Lecturer: Muhammad Sulaiman
Department of Chemical, Polymer and Composite Materials Engineering
University of Engineering & Technology, Lahore(KSK Campus)

2. Course Objective Knowledge of materials used in Engineering Design
To understand the structure, properties, processing and performance of the principal classes of materials and to understand the relationships between these four aspects of materials.
Selection of material for particular usage

3. Course Contents Introduction to Engineering Materials
Concepts of stress and strain applied to chemical engineering design.
Properties of different materials
Applications of: Iron and steel, stainless steel, nickel, hastelloy, copper alloys, aluminum and its alloys, lead, titanium etc.
Polymeric materials
Composite materials
Glass & Ceramic materials,
Acid resistant bricks & tiles materials
Insulating & Lubricating Material
Phase equilibrium diagrams
Selection of materials of construction.
Corrosion and Corrosion Prevention.

4. Books Recommended Book
Material Science And Engineering - An Introduction By William D. Callister.
Reference Books
Introduction To Engineering Materials By Vernon John; 4thEdition
R. L. Timings, “Engineering Materials”, Volume 1, (2nd Edition), Prentice Hall (1998)
Bhargava A. K,” Engineering Materials: Polymers, Ceramics And Composites”, PHI Learning (2012)

5. Evaluation Sessional marks:30 Quiz(Surprise quiz/Objective type)
Assignments
Presentations
Oral Exam
Midterm Exam: 30
End term Exam: 40

6. Introduction
The matter from which an article, fabric or structure is made.
“Materials Science” involves the investigating relationships that exist between structures and properties of materials.
In contrast, “Materials Engineering” is, on the basis of these structure–property correlations, designing or engineering the structure of a material to produce a predetermined set of properties.

7. Structure
The Structure of a material usually relates to the arrangement of its internal components.
Subatomic structure involves electrons within the individual atoms and interactions with their nuclei.
On an atomic level, structure encompasses the organization of atoms or molecules relative to one another.
The next larger structural realm, which contains large groups of atoms that are normally agglomerated together, is termed “microscopic,”
Finally, structural elements that may be viewed with the eye are termed “macroscopic.”

8. Property
A property is a material trait in terms of kind and magnitude of response to a specific imposed situation.
For example, A specimen subjected to forces will experience deformation, or a polished metal surface will reflect light.

9. Processing and Performance
Close relationship of Structure, Properties, Processing, and Performance of materials.
With regard to the relationships of these four components, the structure of a material will depend on how it is processed
Furthermore, a material’s performance will be a function of its properties

10. Relationship b/w Material Science & Engineering
Material Sci. & Eng.
Processing
Structure
Properties
Performance

11. Materials Knowledge Spectrum
Materials Science
Basic knowledge of materials
Physiochemical properties
Materials Science and Engineering
Resultant knowledge of structure, properties, processing and performance of engineering materials
Materials Engineering
Application of scientific knowledge to design valuable products
Selecting right material from the many thousands that are available

12. Classification Of Materials
Metals
Ceramics
Polymers
Composites
Materials
Advanced Materials

13. Metals & Alloys
Materials in this group are composed of one or more metallic elements (such as iron, aluminum, copper, titanium, silver, gold, and nickel) and often also nonmetallic elements (for example, carbon, nitrogen, and oxygen) in relatively small amounts
An Alloy is a combination of one metal with one or more elements such that it behaves like a metal.
Atoms in metals and their alloys are arranged in a very orderly manner and in comparison to the ceramics and polymers, are relatively dense.
These materials are relatively stiff and strong yet are ductile.

14. Ceramics & Glasses
Ceramics are compounds between metallic and nonmetallic elements.
Ceramics are basically Oxides, Nitrides, and Carbides e-g Aluminum oxide or Alumina- Al2O3, and Silicates e-g Silicon dioxide or Silica(SiO2), Silicon carbide- SiC, Silicon nitride- Si3N4)
Glasses are transparent materials e-g silicate glasses, window panes, wind shield in cars etc
Ceramics are very hard materials but at the same time very brittle.

15. Polymers Polymers include the familiar plastic and rubber materials.
Many of them are organic compounds that are chemically based on carbon, hydrogen, and other nonmetallic elements (O, N, and Si)
Daily examples include; polythene PVC, cable insulation and rubber tyres, car bumpers and dashboards etc.
An excellent engineering polymer is Teflon which provides frictionless bearings.

16. Composites (Man-made Materials)
A composite is composed of two (or more) individual materials (metals, ceramics, and polymers)
The design goal of a composite is to achieve a combination of properties that is not displayed by any single material, and also to incorporate the best characteristics of each of the component materials.
A) Metal-Ceramic: e-g reinforced concrete cement
B) Ceramic-polymer: e-g fiber reinforced plastic (helmets)
C) Metal-polymer: e-g vinyl coated steel to protect steel from rusting.

17. Advanced Materials
Semi-Conductors
Biomaterials
Nano Material

18. Material Application

19. Thank You