Fundamentals of Crystal Structure: BCC, FCC and HCP Structures, coordination number and atomic packing factors, crystal imperfections -point line and surface imperfections. Atomic Diffusion: Phenomenon, Fick’s laws of diffusion, factors affecting diffusion.

1. Introduction to Materials Science
and Engineering
Department of IE & M
JSS Academy of Technical Education, Bangalore-560060

2. The objective of Materials Science Study
• At some point of time or the other an engineering problem
involves issues related to material selection.
• Understanding the behavior of materials, particularly structure-
property correlation, will help selecting suitable materials for a
particular application.
The objective of studying materials science is to develop this understanding

3. Objective and Scope of the present course
 Primary objective is to present the basic fundamentals of materials science and
engineering.
 Classification of materials, their properties, structures and imperfections present in them.
 Aid the teaching learning process through relevant illustrations, animations, web content
and practical examples.
 Highlight important concepts for each topic covered in the subject

4. “materials science” involves investigating the relationships that exist
between the structures and properties of materials.
Materials science and engineering

5. Why do we study materials?

6.  Many applied scientist or engineer, whether mechanical, civil, chemical, or electrical, will at
one time or another be exposed to a design problem involving materials.
 Examples might include a transmission gear, the superstructure for a building, an oil
refinery component, or an integrated circuit chip.
 materials scientists and engineers are specialists who are totally involved in the
investigation and design of materials.
 materials problem is one of selecting the right material from the many thousands that are
available.

7.  selection consideration is any deterioration of material properties that may occur
during service operation.
 Example, significant reductions in mechanical strength may result from exposure to
elevated temperatures or corrosive environments.
 overriding consideration is that of economics. (Cost)

8. Historical perspective
Materials Science
and
Human Civilization

9. Materials in day to day life

10. Materials: The Milestones of Progress
Development and advancement of Human societies closely related with materials
• Civilizations have been named based on the level of their materials development – Stone age,
Bronze age etc.

11. Quest for newer materials:
The driving force for the progress- stone age to IT age
Quest for more advanced materials to meet the growing needs as the civilization progressed.

12. A look at the history of materials chronologically clearly reveals this
Stone age

13. Introduction of metals

14. Discovery of Alloy - Metal Combinations

15. Iron and Steel – Building blocks of human civilization

16. Early 20th Century – The golden era

17. The Electronic revolution

18. Superconductors

19. End of Module 1