Lab-1 Introduction to Engineering Materials.pdf
- 1. Lab# 01 Introduction to Engineering Material MM141L Spring 2023 By Umair Naseer
- 2. Learning Outcomes The lab is related to MM-101 course. It’s an exercise to the theory you all are studying in Materials and Nanotechnology course. It not only covers the basis of materials in materials engineering field but also in mechanical, electrical and computer engineering fields.
- 3. Why Advanced materials? • Advanced materials are those that are developed over the past 30 years or so and are being developed at present, that exhibit greater strength, higher strength density ratios, greater hardness, and/or one or more superior thermal, electrical, optical, or chemical properties when compared with traditional materials. • Advanced ceramics, metals, and polymers, including composites of these, offer the promise of decreased energy consumption, better performance at lower cost, and less dependence on imports of strategic and critical materials.
- 4. Advanced Materials Nature is full of magic materials which are to be discovered in forms suitable to our needs such magical materials are also called intelligent or smart materials. They can sense, actuate, stimulate, and process responses.
- 6. Challenges! The problems faced today: •Improved fuel economy •Improved performance •Reduced emission Solution •Body structure weight reduction
- 7. Classes • Metals • Ceramics • Polymers • Semiconductors • Biomaterials • Smart materials
- 8. Types of smart materials • Graphene • Piezoelectric materials • Shape memory materials • Hydroxyapatite • Ultra-hydrophobic materials • Hydrogels • Aerogels • Transistors (3D circuits)
- 9. Graphene
- 12. Hydroxyapatite
- 14. Hydrogels
- 15. Aerogels
- 16. Electronic advanced materials 1. Integrated circuits 2. Printed circuit boards 3. Transistors • The two most important things are: 1. Efficiency 2. The operations they perform
- 17. Integrated circuits “Assembly of interconnected electrical components which is fabricated on a single unit” • Materials 1. Silicon 2. Gold and aluminum 3. Gold plating of pins/legs 4. Graphene and CNTs
- 19. Printed circuit boards “The board with an in build circuit for the connection to link integrated circuits, resistors, capacitors and other electronic components” • Materials 1. Composite of polymers and glass fibers 2. Copper used in platting of linking circuits
- 20. Transistors