Dear Kumar, 

You can measure the electrical conductivity of Al-based composite materials using four point techniques. However, contact between the electrical probe might be a problem. If your sample shape is rectangular that would be fine and if not u need to cut the sample into rectangular shape as small as possible.

You need to measure the dimensions of your sample (Length, width and height).

Find attached is a helpful material on the electrical conductivity.

Thank you.

Ibrahim.

Dear Suresh

If the resistance of your sample is a few ohms, you can use four probe techniqe. But, if your resistance is in kilo ohms and above you have to use two probe technique. Mount your sample in a metallic sample holder with a vacuum inside if your resistance is high.

Dear Kumar, 

You can measure the electrical conductivity of Al-based composite materials using four point techniques. However, contact between the electrical probe might be a problem. If your sample shape is rectangular that would be fine and if not u need to cut the sample into rectangular shape as small as possible.

You need to measure the dimensions of your sample (Length, width and height).

Find attached is a helpful material on the electrical conductivity.

Thank you.

Ibrahim.

Dear Suresh,

You can measure the conductivity only in the fibre direction. you can use one technique called eddy current NDT method but you need to have that equipment.

Ramesh

Four point probe:

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