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Excellence in Broadband Dielectric Spectroscopy • Impedance Spectroscopy • Conductivity Spectroscopy

Materials Studies Under Pressure

It is well known that complete characterization of molecular dynamics in materials must include temperature (T) and pressure (P) experiments. Particularly in polymer science and research the effect of pressure on relaxation spectra is hardly explored.

Pressure tunability creates a whole new research landscape and opens a new pathway to nano structured materials.

For industrial applications pressure can be used as an unique way to control crystallization processes such as nanocrystal growth.

High pressure system overview

The NOVOCONTROL high pressure dielectric analyzer allows scientists to study the effect of temperature and pressure on materials simultaneously. 

The sample is placed between two parallel electrodes of 30 mm diameter. The electrodes are connected by flexible leads to high-pressure feed-through connectors.   Further connection to the Alpha analyzer is performed by standard BNC cables. The electrodes are inserted into a high pressure test cell that can be pressurized by an inert fluid such as silicon oil.

The integrated hydraulic pump features a maximum pressure of 3000 bar. The temperature of the test cell is controlled by electric heating elements over a range from ambient to 250 °C.

Features