thermal properties Flashcards

1
Q

Heat Capacity

A

General: The ability of a material to absorb heat.

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2
Q

Heat capacity:
* Increases with

A

temperature
* Reaches a limiting value of 3R for
many simple crystalline solids such as
metals

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3
Q

increasing cp

A

metal crmc polymer

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4
Q

increase of thermal expansion coefficient

A

cermc metal polymr

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5
Q

Polymers have larger α!
values because

A

Polymers have larger α!
values because of weak
secondary bonds

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6
Q

Thermal Stresses
Occur due to

A

Thermal Stresses
Occur due to:
* Restrained thermal expansion/contraction

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7
Q

Thermal Shock Resistance
* Occurs due to:

A

Thermal Shock Resistance
* Occurs due to: nonuniform heating/cooling

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8
Q

A material responds to heat by:

A

A material responds to heat by:
* Increased vibrational energy.
* Redistribution of this energy to achieve thermal equilibrium

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9
Q

Thermal Conductivity: Comparison

A

polymer crmc metal

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10
Q

materoal spcfc heat depends on

A

density

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