Chaper 1

Question 1

materials science (2)

Answer 1

-investigate relationships between structures and properties
-design/ develop new materials

Question 2

materials engineering (2)

Answer 2

-create products from existing materials
-develop materials processing techniques

Question 3

Why are materials important?

Answer 3

They drive advancements in society.

Question 4

Processing affects (ex: cooling rate) …

Answer 4

structure

Question 5

Structure affects…

Answer 5

hardness

Question 6

Metal properties (3)

Answer 6

-strong, ductile
-high thermal & electrical conductivities
-opaque, reflective

Question 7

Polymers/ plastics

Answer 7

compounds of non-metallic elements

Question 8

Polymers/ plastics properties (3)

Answer 8

-soft, ductile, low strengths, low densities
-low thermal & electrical conductivities
-opaque, translucent, or transparetn

Question 9

Ceramics

Answer 9

compounds of metallic & non-metallic elements (oxides, carbides, nitrides, sulfides)

Question 10

Ceramics properties (3)

Answer 10

-hard, brittle
-low thermal & electrical conductivities
-opaque, translucent, and transparent

Question 11

Material Property Types (6)

Answer 11

1. Mechanical
2. Electrical
3. Thermal
4. Optical
5. Magnetic
6. Deteriorative

Question 12

Factors that increase electrical resistivity (3)

Answer 12

-increasing temperature
-increasing impurity content
-deformation increases

Question 13

Factor that increases hardness (1)

Answer 13

-increasing carbon content

Question 14

Thermal conductivity

Answer 14

measure of a material’s ability to conduct heat

Question 15

Highly porous materials are poor conductors of heat. (T or F)

Answer 15

True

Question 16

Ceramic Fiber properties (2)

Answer 16

-significant void space
-low thermal conductivity