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Why aluminum has high thermal expansion coefficient than Copper?
Wiki User
∙ 16y ago
Why aluminium has high thermal expansion coefficient than Copper?"
Wiki User
∙ 16y ago
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Why does copper shrink when it cools?
Copper shrinks when it cool because of Thermal Expansion. Sources: It was a question in my science book, and I got the question right. P.S. Would you like to know what Thermal Expansion is?
Which two substances could be good thermal conductors?
aluminum and copper.
What metal is the best conductor of heat aluminium iron or brass?
Aluminum have better thermal conductivity than ironAluminum: 205W/(m K)Iron: 80 W/(m K)
Order of expansion rate aluminium copper brass and iron?
Linear thermal expansion (α): Iron - 11,8.10-6/°C Aluminium - 23,1.10-6/°C Copper - 17.10-6/°C Brass - 19.10-6/°C See the link below for a more complete table.
Why temperature coefficient of copper is positive?
yes
What is the Coefficient of thermal expansion for brass?
assuming it is pure copper and not an alloy, 17(k), 9.3 Co
When Copper gets longer from heat - what is this called?
thermal expansion
Does a copper heat sink or an aluminum one with a base made of copper work any better than a pure aluminum one?
The thermal conductivity of copper is higher than that of aluminum, and silver is better than either copper or aluminum.
Why does copper shrink when it cools?
Copper shrinks when it cool because of Thermal Expansion. Sources: It was a question in my science book, and I got the question right. P.S. Would you like to know what Thermal Expansion is?
What two materials that are considered to be good thermal conductors?
Copper and aluminum
Which two substances could be good thermal conductors?
aluminum and copper.
Thermal coefficient of Copper?
Copper has a CTE of 16.6 parts per million/degree C (16.6E-6/C)
Does aluminum expand twice as much as cast iron?
Linear Coefficient of Expansion.Heating a metal to temperatures below its melting point causes it to expand or increase in length. If a bar or rod is uniformly heated along its length, every unit of length of the bar increases. This increase per unit length per degree rise in temperature is called the coefficient of linear expansion. Where a metal will be alternately subjected to beating and cooling cycles and must maintain a certain tolerance of dimensions, a low coefficient of thermal expansion is desirable. When in contact with a metal of a different coefficient, this consideration assumes greater importance.Titanium has a low coefficient of linear expansion which is equal to 5.0x10-6inch per inch/°F, whereas that of stainless steel is 7.8x10-6, copper 16.5x10-6, and aluminum 12.9x10-6.copied fromhttp://www.keytometals.com/ARTICLE122.HTM
How do you calculate coefficient of linear expansion of copper?
dL/dT = αL*L, where L is the length of the steel, T is temperature, and αL is the linear thermal expansion coefficient which for steel is about 11.0 to 13.0. That is possibly the easiest differential equation in history: (1/L)dL = (αL)dT ln(L) = αLT L = eαLT
What metal is a good conductor of thermal energy and electric current?
aluminum, copper,
Is gold a thermal conductor?
Yes, it is. It is better than aluminum, but not as good as copper. Aluminum is often used in heat sinks, though, because it is cheaper than gold or copper.
The group of metals known as the big three consists of?
The group of metals called the big three consists of iron, copper, and aluminum. These three metals are known for have good thermal and electrical conductivities.
