Description
To the point
The Linseis DIL L75 HP high-pressure dilatometer opens up completely new areas of application in thermal analysis. The system can measure changes in length in a temperature range from RT to 1100/1400/1800°C and in a pressure range up to 100/150 bar. This makes the device the only high-pressure dilatometer available worldwide. A water vapor generator and complex gas controls are of course optionally available.
To obtain further information about your sample, you can of course couple the measuring device with a mass spectrometer (QMS) or FTIR system at any time to analyze the exhaust gases. This coupling is realized by means of specially integrated hardware and software concepts from LINSEIS. Several libraries are available for interpreting the results.
Unique Features
Measurement of length
changes at temperatures
from RT to 1800°C and
pressures up to 150 bar
The only high-pressure
dilatometer available
worldwide
Optional steam generator
and complex gas controls
Coupling with mass spectrometer
(QMS) or FTIR system for analyzing
the exhaust gases
Integrated hardware and software
concepts with extensive libraries
for interpreting results
Service-Hotline
+01 (609) 223 2070
+49 (0) 9287/880 0
Our service is available Monday to
Thursday from 8-16 o’clock
and Friday from 8-12 o’clock.
We are here for you!
Specifications
MODEL | DIL L75 HP/1* |
|---|---|
| Temperature range: | RT up to 1100°C |
| Max. pressure: | max. 150 bar |
| Vacuum: | 10E-4 mbar |
| Sample holder: | fused silicia < 1100°C, Al2O3 < 1750°C |
| Max. sample length: | 50 mm |
| Sample diameter: | 7/12/20 mm |
| Adjustable sample pressure: | up to 1000 mN |
| Measuring range: | 500 / 5000 µm |
| Resolution: | 0,125 nm |
| Options: | Pressure controllable Gas Mixing System (MFC´s) |
| Atmosphere: | inert, oxid.*, red., vac. |
| *Specifications depend on the configurations |
MODEL | DIL L75 HP/2* |
|---|---|
| Temperature range: | RT bis 1400/1800°C |
| Max. pressure: | max. 100 bar |
| Vacuum: | 10E-4 mbar |
| Sample holder: | fused silicia < 1100°C, Al2O3 < 1750°C |
| Max. sample length: | 50 mm |
| Sample diameter: | 7/12/20 mm |
| Adjustable sample pressure: | up to 1000 mN |
| Measuring range: | 500 / 5000 µm |
| Resolution: | 0,125 nm |
| Options: | Pressure controllable Gas Mixing System (MFC´s) |
| Atmosphere: | inert, oxid.*, red., vac. |
| *Specifications depend on the configurations |
Ovens and accessories
- Devices for sample preparation
- Various specimen holders (size, material)
- Caliper for manual or online input of sample length
- Various gas boxes: manual, semi-automatic and MFC controlled
- Rate-controlled sintering (RCS) software option
- Various rotary and turbomolecular pumps
- Possibility of operation under 100% H2
- LN2 cooling
- Choice of different dilatometer measuring systems
Software
Making values visible and comparable
The powerful LINSEIS thermal analysis software, which is based on Microsoft® Windows®, performs the most important function in the preparation, execution and evaluation of thermoanalytical experiments, in addition to the hardware used. With this software package, Linseis offers a comprehensive solution for programming all device-specific settings and control functions, as well as for data storage and evaluation. The package was developed by our in-house software specialists and application experts and has been tried and tested over many years.
Dilatometer functions
- Glass transition and softening point determination
- Automatic softening point switch-off, freely adjustable (system protection)
- Display of absolute or relative shrinkage or expansion
- Display and calculation of technical / physical expansion coefficients
- Rate-controlled sintering (software option)
- Sintering process evaluation
- Density determination
- Automatic evaluation routines
- System correction (temperature, zero curve, etc.)
- Automatic zero point adjustment
- Automatic punch contact pressure control
General functions
- Real-time color display
- Automatic and manual scaling
- Display of axes freely selectable (e.g. temperature (x-axis) versus delta L (y-axis)
- Mathematical calculations (e.g. first and second derivative)
- Storage of complete evaluations
- Multitasking function
- Multi-user function
- Zoom option for different curve sections
- Any number of curves can be loaded on top of each other for comparison
- Online help menu
- Free labeling
- EXCEL® and ASCII export of measurement data
- Data smoothing
- Zero curves are calculated
- Cursor function
- Statistical curve evaluation (mean value curve with confidence interval)
- Tabular printout of data and expansion coefficients
- Calculation of Alpha Phys, Alpha Tech, relative expansion L/L0
- Curve arithmetic, addition, subtraction, multiplication
Applications
Application example
The linear thermal expansion (ΔL) and the coefficient of thermal expansion CTE of a sample, measured in an argon atmosphere with a heating rate of 5 K / min, has its eutectic and Curie point at 736.3 °C. The measured temperature peak of the expansion coefficient can be compared with the literature value and thus the calibration of the device can be checked.
