Performance characteristics of materials

Question 1

What are the two different conductors?

Answer 1

Electric- allow flow of electrons through material.

Thermal- allow flow of heat energy through material.

Question 2

What are the five types of strength and meaning?

Answer 2

Bending- resist beinbg bent
Compressive- withstand crushing
Tensile- resist stretching/pulling
Shear-resist sliding forces
Torsional- withstand twisting forces

Question 3

Elasticity

Answer 3

Ability to be deformed and return to shape when force is removed.

Question 4

Plasticity

Answer 4

Ability to be permanently deformed and retain that shape.

Question 5

Malleability

Answer 5

Withstand deformation without cracking.
-increases with rising temperature.

Question 6

Ductility

Answer 6

Stretching a material under tension; without cracking

Question 7

Hardness

Answer 7

Ability to resist scratching

Question 8

Toughness

Answer 8

Ability to absorb impact force without fracture.

Question 9

Durability

Answer 9

Ability to withstand general wear over time.

Question 10

Biodegrageability

Answer 10

Ability to naturally decompose.