Material Science and Engineering, Chapter 1 Ppt

Introduction to Materials Science and Engineering
Chapter 1. Introduction
Hyung-Joon Shin
School of Mechanical and Advanced Materials Engineering
Ulsan National Institute of Science and Technology (UNIST)
UNIST 2011 Spring AME20201
Introduction
• Course Objective:
Introduce fundamental concepts in Materials Science
• You will learn about:
• material structure
• how structure dictates properties
• how processing can change structure the final grade. Please actively take part in the class.
• Homework should be submitted before the class (NO delay is allowed). • Make-up class will be scheduled with you, if necessary.
UNIST 2011 Spring AME20201
Schedule
Week
1-2
2-5
5-6
6-7
8
7,10
10-11
12-13
14-15
16
Topic
General Intro; Atomic Bonding
Crystalline Structure; Imperfections
Imperfections; Diffusion
Mechanical Properties
Midterm Exam
Dislocation & Strengthening Mechanisms
Failure & Phase Diagrams
Electrical & Thermal Prop.
Magnetic & Optical Prop.
Final Exam
Chapter
1,2
3,4
4,5
6
1-6
7
8,9
18-19
20-21
All
Grading: Quiz (15%), Homework (15%), Midterm (30%), Final (40%)
UNIST 2011 Spring AME20201
Why should we know about Materials?
Materials drive our society !
–Stone Age
(~2.5 million BC)
–Bronze Age
(~3,500 BC)
–Iron Age
(~1,200 BC)
–Now?
• Silicon Age?
• Polymer Age?
Display Materials
Housing
Electronic
Applications Defense
Transportation
Energy
UNIST 2011 Spring AME20201
Why Materials ?
The Quality of Our Everyday Lives Is Improved by
Revolutionary Materials !!
History of Lighting
UNIST 2011 Spring AME20201
Why Study Materials Science and Engineering ?
Tacoma Narrow Bridge Collapsing (1940)
Material Failure
Harsh Environments
Deterioration during in-service conditions
UNIST 2011 Spring AME20201
Materials Science and Materials Engineering
 Materials Science
 Materials Engineering
- investigating the relationships that exist between the structure and properties of materials
-