It is convenient to measure the thermal expansion of graphite with an dilatometer.

The dilatometer is widely used to measure the thermal expansion of graphite because of its good precision.

For the detection of graphite elongation, the differential variometer is the most general method.

It is possible to measure the elongation of graphite at 1000℃.

Regarding to the measurement of graphite elongation at high temperature, we can keep the graphite sample in a tubular electric furnace with observation holes reserved for direct measurement by telescope.

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