Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Dental materials > Metal and alloys > Flashcards

Metal and alloys Flashcards

1
Q

How do you visualise a grain boundary?

A

Polish the alloy

Etch the alloy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What will be the effect of a small grain size?

A

Rapid solidification

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the grain boundary?

A

Where crystals meet after points of nucleation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is heterogenous nucleation?

A

Number of sites of nucleation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is homogenous nucleation?

A

1 sites of nucleation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

If the mould is similar temperature to the alloy then slow cooling. What size of grain will this be?

A

Large grain size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

If the mould is different temperature to the allow then the cooling will be faster. What size of grain will this be?

A

Small grain size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name an inter metallic compound?

A

Amalgam

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is ductility?

A

To stretch something out into a wire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is malleability?

A

The maximum compressive strength in response to an applied force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is amalgamation?

A

Mixing with Hg- crystallisation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

When cooling a molten alloy to its metal state the solubility may differ.

A

They may remain soluble in each other
partially soluble
completely insoluble

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What properties does Cf pure metals have?

A

Stronger
Higher elastic limits
Harder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the element sign for amalgam?

A

Ag3Sn

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What does a plataeu represent?

A

The constant temperature during crystallisation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The larger the distance between solidus and liquidus results in more what?

A

Coring

17
Q

What is an eutectic alloy?

A

narrow melting point

behaves like a pure metal

18
Q

When is an eutectic alloy used?

A

used for solder

Dental materials (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions