Technology Laboratories of DCMP



Dilatometer - Netzsch Dil 402C

When it comes to determination of the linear thermal expansion in solids, liquids, powders and pastes as well as ceramic fibers, the DIL 402 C vacuum-tight pushrod dilatometer leaves no measurement problem unsolved.
The perfect design of the Invar measurement system with its high-resolution displacement transducer and comprehensive thermostatic control offers the highest degree of accuracy, reproducibility and long-term stability for application temperatures up to 2000°C.

The horizontal design of the dilatometer with motorized pushrod and easy to move furnace make it simple to place samples on the special sample supports in the recess of the tube-type sample carrier, even with less than ideal sample geometries. A thermocouple in direct proximity to the sample yields reproducible temperature measurement. This also allows use of the c-DTA® Software for calculation of endothermic and exothermic effects in the sample as well as determination of all the characteristic expansion values.

DIL 402 C - Technical Specifications (subject to change)


Temperature range: -180°C to 500°C, RT to 1000°C, RT to 1600°C, RT to 2000°C
(4 exchangeable furnace types)
Heating and cooling rates: 0.01 K/min to 50 K/min (dependent on furnace)
Sample holder:
fused silica <1000°C
Al2O3 <1700°C
graphite 2000°C
Measuring ranges: 500/5000 µm
Sample length: max. 50 mm
Sample diameter: max. 12 mm (optional 19 mm)
Δl resolution: 0.125 nm / 1.25 nm
Atmospheres: inert, oxidizing, reducing, static and dynamic
Gas flow meter and valve for purge gas (optional)
c-DTA® for the calculated DTA-signal from dilatometer measurements, ideal for temperature calibration (optional)
Highly vacuum-tight up to 10-4 mbar (10-2 Pa)
Coupling to QMS 403 D Aëolos® over a heatable adapter at the exit of the furnace
Extension with unique OTS® system (option)



Alumina Green Body — Sintering
Glass Ceramic Zerodur — Thermal Expansion
Iron — Thermal Expansion
Polystyrene (PS)
Silicon Nitride — Thermal Expansion