lesson 1

Question 1

involves the investigation of the
relationship between the structure and properties of materials

Answer 1

Materials science

Question 2

deals with the modification of
structure to produce desired set of properties.

Answer 2

Materials engineering

Question 3

a material usually relates to the arrangement of its internal components

Answer 3

Structure

Question 4

is a material trait in terms
of the kind and magnitude of
response to a specific imposed
stimulus.

Answer 4

Property

Question 5

Properties of Materials

Answer 5

Mechanical
Electrical
Thermal
Magnetic
Optical
Deteriorative

Question 6

hardness, tensile
strength, malleability

Answer 6

Mechanical

Question 7

electric conductivity

Answer 7

Electrical

Question 8

thermal conductivity

Answer 8

Thermal

Question 9

paramagnetism, diamagnetism

Answer 9

Magnetic

Question 10

refraction, absorption, reflection

Answer 10

Optical

Question 11

corrosion resistance

Answer 11

Deteriorative

Question 12

FOUR COMPONENTS OF Mat Sci and Eng’g

Answer 12

1. PROCESSING
2. STRUCTURE
3. PROPERTY
4. PERFORMANCE

Question 13

Classification of Materials

Answer 13

METALS
CERAMICS
POLYMERS
COMPOSITES

Question 14

good conductors of
electricity and heat, composed of one or more metallic elements
(e.g., iron, aluminum, copper,
titanium, gold, and nickel), and often also non-metallic elements
(e.g., carbon, nitrogen, and oxygen) in relatively small amounts.

Answer 14

METALS

Question 15

-low thermal and
electrical conductivity, brittle.
-are compounds between metallic and non-metallic elements; they are most
frequently oxides, nitrides, and carbides.

Answer 15

CERAMICS

Question 16

low electrical conductivities and are nonmagnetic

Answer 16

POLYMERS

Question 17

combination of 2 or more individual materials, which come
from the categories previously discussed—metals, ceramics, and polymers.

Answer 17

COMPOSITES

Question 18

stiff, strong, flexible and low
density

Answer 18

GFRP “glass fiber–reinforced polymer”

Question 19

are embedded within a polymer – stiffer and stronger than
glass fiber–reinforced materials

Answer 19

carbon fiber–reinforced polymer (CFRP)

Question 20

Materials that are utilized in high-technology (or high-tech) applications

Answer 20

Advanced Materials

Question 21

have electrical properties that are intermediate between the electrical
conductors (i.e., metals and metal alloys) and insulators (i.e., ceramics and polymers)

Answer 21

Semiconductors

Question 22

employed in components implanted into the human body to replace diseased or damaged body parts. These materials must not produce toxic substances and must be compatible with body tissues

Answer 22

Biomaterials

Question 23

are a group of new and state-of-the-art materials now being developed that will have a significant influence on many of our technologies.

Answer 23

Smart Materials

Question 24

may be any one of the four basic types—metals, ceramics, polymers, and composites. However, unlike these other materials, they are not distinguished on the basis of their chemistry, but rather, size;

Answer 24

Nanomaterials