Chapter 1 Flashcards
Name the 6 Materials
- Metals
- Ceramics, Glasses
- Foams
- Composites
- Polymers Elastomers
- Natural Materials
Examples of Metals
- Steel
Example of Ceramics and Glasses
- Bottles
- Insulators in Transmission Lines
Composites and Examples
Materials made out of 2 or more materials, combined are stronger than by itself.
- Ply wood
What is a Elastomer
Is made from polymers joined by chemical bonds, the material is characterized by high elongation, flexibility, and elasticity.
What is a Polymer
General term for any molecule made of a long, repeating chain of smaller, bonding molecules called monomers.
Natural Materials
- Wood
- Cotton
Foams
- Foam Plastics
- Foam Glass
- Metallic Foams
What is Density?
- Mass quantity in relation to a volume
- Having a high mass per unit volume
What is Strength?
Resistance to failure by permanent deformation
What is Sustainable Development?
Development that meets the needs of the present without compromising the ability of future generations to meet their own needs
Definition of Sustainability
The process of people maintaining change in a balanced environment I which the exploration of resources, direction of investments, orientation of technological development and institutional change are all in harmony.
To whom can we tracked the concept of Sustainability?
Hans Carl von Carlowitz
How can materials can be classified as “Critical’
If access to them could be limited or they are essential for national security or important economically
Important Generic reasons for the selection of materials
- Availability of suitable materials
- Component loads
- Material indices
- Price
- Available semi - finished products
- Manufacturing processes
