Hi Rasedul,

You do not actually need a lot of equipment to do the poling process. Here is a list of all that you need (sintered ceramic samples):

1. Spring loaded copper electodes.

2. DC voltage generation setup.

3. Hot plate or any other suitable temperature regulator.

4. Silicon oil.

Coat the working faces of your sample with silver paint. Clamp it between your electrode setup. Immerse the electrodes in silicon oil. Slowly raise the temperature to near reported Curie point. Switch on the DC voltage and ramp it up such that applied electric field across the sample corresponds to the reported saturation polarization values. Keep the voltage applied for a short period of time (usually 30 min). Slowly cool the sample back to room temperature while keeping the electric field steady. Finally, switch off the high voltage.

With respect to the second part of the question. There are a variety of instruments available from Agilent which can directly measure pyroelectric coeffficient. Otherwise, you can also measure the d33 value as all pyroelectric materials are also piezoelectric.

I hope this helps.

Dear Rashedul

Poling process is already explained.

Following discussions are also useful.

https://www.researchgate.net/post/How_can_I_increase_the_piezoelectric_constant_If_I_give_the_same_poling_field_to_all_the_prepared_samples_Is_it_a_correct_method

https://www.researchgate.net/post/how_is_poling_of_a_Piezoelectric_material_done_What_is_the_setup_required#view=5a3d5669615e2788cf7b00e8

Some papers

Article Optimization of poling parameters of mechanically processed ...

Article Poling electric field dependent domain switching and piezoel...

regards

Aditya and Ajeet, thank you both.