TMA/HUM

Especially during sintering of ceramics in a water vapor atmosphere, the actual sintering conditions can be carried out in a laboratory-based environment. 

Here TMA measurements held at a constant temperature while changing the relative humidity measure the swelling ratio with regards to relative humidity effective for the sample’s swelling property evaluation. 

The humidity generator (HUM-1) uses N₂ base gas to create a water vapor containing a humidity controlled gas to be introduced to the TMA.

Here, the TMA is equipped with a specialized electric furnace that keeps the temperature constant thru a circulator to prevent condensation even at high water vapor concentration atmosphere and can perform measurements at a maximum of 85℃ 90% RH atmosphere. The humidity sensor equipped with a feedback control leads to a stable humidity for longer measurements.  Since the relative humidity settings in TMA is integrated in the temperature program, the user can change the relative humidity in each step of the temperature program.