Is aluminum conductive?

Question

I am looking for a common material that is heat resistant and non-conductive.......any ideas?

Answer 1

One of the properties of metals is that they are conductive (to heat and electricity), and Aluminum is no exception. Aluminum does conduct both heat and electricity.

As for "heat resistant", are you referring to a material like what they use on the space shuttle's tiles? All materials will experience an increase in temperature when heat is applied, but the size of the rise in temperature will depend on the material and a property known as specific heat (the amount of energy it takes to raise the temperature of a specific mass by a certain temperature). Aluminum would not be good for this either.

What is the specific application you are trying to use this material for, perhaps we can help think of a good substitution.

Answer 2

Is Aluminum Conductive

Answer 3

Aluminum is a good conductor of electricity. A common material that isn't conductive is glass but glass will conduct heat. Wood isn't heat conductive or an electricity conductor but has a low combustion point.
If you have a specific application you're looking for then you'd better ask more specific questions.

Answer 4

Aluminum is conductive, but Aluminum oxide is less conductive and has a higher melting point than pure aluminum.

How about china? It is very comment and heat resistant.

Give us more information, we might able to give more ideas.

Answer 5

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RE:
Is aluminum conductive?
I am looking for a common material that is heat resistant and non-conductive.......any ideas?

Answer 6

All metals are conductive to electricity. If you mean conductive to heat, every material is conductive to heat...it just depends how much. Aluminum is one of the best conductors of heat. Most electronics-oriented heat sinks are made out of aluminum, because it transfers heat so well.

Heat transfer involves several material properties: thermal resistance, thermal capacitance, specific heat, etc. Thermal Resistance is how fast heat will travel through an object of a given length and cross section, for a given temperature difference between the ends. Thermal capacitance and specific heat describe what happens when an object is placed next to something hot: how much heat energy does it take to increase a specific-sized object's temperature by 1 degree?

If you want to think of materials that are bad conductors of heat (meaning that, if placed between a hot object and a cold object, the cold object will take a long time to heat up), think of what you use during cooking. Wooden spoons don't transfer the soup's heat to your hand as fast as metal spoons. Cloth potholders work better than plastic ones, etc. It turns out that stagnant air is a very good thermal insulator.

Of course, the downside of wood and cloth is that, if exposed to high enough temperatures, it can catch fire. You want an object that can withstand hot temperatures, and not transfer that heat to other objects (such as your hand). That means the object must absorb or reflect most of the energy that it receives from the heat source.

These two options suggest (a) coating the part that will be exposed to the heat with aluminum foil (to reflect radiated heat energy back into the source), and (b) find an object with a very high specific heat / thermal capacitance and a low thermal resistance. This means the energy it does receive gets stored up, rather than increasing its temperature much or being transferred straight through to your hand.

Answer 7

Aluminum wire was used for electrical wiring in the late 70's and early 80's. However, when carrying large currents, it gets hot, and caused many house fires. So the insurance companies pitched a tizzy, and made the government outlaw it for wiring.

Heat resistant and non-conductive? Most ceramics. Glass in heat resistant, but conducts heat readily.

Answer 8

Yes, in fact there was a trial period of using aluminum for household wiring. This was tried because aluminum was cheaper than copper. Problem was that using aluminum wiring caused electrical fires and the practice of using aluminum wiring soon stopped.

Answer 9

Yes aluminum is behind copper in conductivity. It is widely used worldwide now for tramission of electricity.
Aluminum is mainly use for high voltage transmission lines, and larger power lines in homes and businesses.

Lead is non conductive but not heat resistant. If fact lead has a low melting point.
Ceremic is one of the most heat resistant materal with no conductivity available.
You really need to specify what your use for this material would be for a good answer. I as many people work in industry and see many types of materials used for non conductive heat resistant use.

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Answer 10

How about a brick? It's both a heat and electrical insulator.

Aluminum is a conductor of electricity.