Research Dilatometer series
L75 PT Vertical Dilatometer (DIL Dilatometer)
- Description
- Specifications
- Software
- Accessories
- Applications
- Downloads
Description
The vertical research Dilatometer series L75V was developed to meet the demands of the academic community and research laboratories worldwide. With this system thermal expansion behavior of solids, liquids, powders and pastes for a variety of applications can be precisely determined. The unique vertical design of this system is perfect for low or ultra low expansion materials, since the vertical “Zero-Friction” design guarantees superior measuring results. This line of Dilatometers is capable of performing measurements under vacuum, oxidizing and reducing atmospheres.
This system can be ordered in a single or differential version for even higher precision or sample throughput.
Optionally the mechanical and electronic components of the dilatometer can be separated to allow measurements in a glove box
The following physical properties can be measured:
CTE, Linear Thermal Expansion, Alpha Physical, Sintering Temperature, Phase Transformations, Softening Points, Decomposition Temperatures, Glass Transition Temperatures
Specifications
| Configuration: | Single or differential |
| Temperature range: | -150 – 500°C |
| RT ... 1000/1400/1600/2000°C | |
| Heating/cooling rates: | 0.01 K/min ... 100 K/min (dependent on furnace) |
| Sample holders: | fused silica <1100°C |
| Al2O3 <1750°C | |
| Graphite 2000°C | |
| Sample length: | max. 50 mm |
| Sample diameter: | 7/12/20 mm |
| Adjustable Sample pressure: | up to 1000mN |
| Measuring range: | 500/5000 µm |
| Resolution: | 0.125 nm |
| Atmospheres: | reducing, inert, oxidizing, static/dynamic |
| Calculated DTA: | optional |
| Electronics: | Integrated |
| Interface: | USB |
Software
All LINSEIS thermo analytical instruments are PC controlled. The individual software modules exclusively run under Microsoft® Windows® operating systems. The complete software consists of 3 modules: temperature control, data acquisition and data evaluation. The 32 bit software incorporates all essential features for measurement preparation, execution, and evaluation of a Thermogravimetric measurement. Thanks to our specialists and application experts, LINSEIS was able to develop comprehensive easy to understand user friendly application software.
General Features
- Program capable of text editing
- Data security in case of power failure
- Thermocouple break protection
- Repetition measurements with minimum parameter input
- Evaluation of current measurement
- Curve comparison up to 32 curves
- Storage and export of evaluations
- Export and import of data ASCII
- Data export to MS Excel
- Multi-methods analysis (DSC TG, TMA, DIL, etc.)
- Zoom function
- 1 and 2 derivation
- Programmable gas control
- Statistical evaluation package
- Free scaling
DIL-Features
- Glass transition and softening point evaluation
- Softening point detection with automatic software controlled system shut down
- Display of relative/absolute shrinkage or expansion curves
- Presentation and calculation of technical / physical expansion coefficient
- Rate Controlled Sintering (RCS) Software
- Sinter process evaluation
- Semiautomatic evaluation functions
- Several system correction features
- Automatic zero point adjustment
- Automatic software controlled sample pressure adjustment
Accessories
- Sample preparation devices
- Different types of vacuum and turbomolecular pumps
- Different types (designs/materials) of sample holders
- Vernier calipers for online input of the sample length
- Turntable for multiple furnace configuration
- Selection of Gas Boxes for up to 4 gases
- Possibility to operate under H2
Applications
Materials
Polymers, Ceramic/Glass/Building Materials, Metals/Alloys, Inorganics
Industries
Ceramics, Building Materials and Glass Industry, Automotive / Aviation / Aerospace, Research, Development and Academia, Metals / Alloys Industry, Electronics Industry
Glass Ceramic
The dilatometric method is an excellent method to determine the thermal expansion (CTE) and the softening point of glass ceramic materials. Besides the absolute expansion and the expansion coefficient (CTE) you can find the first derivative of the absolute expansion. Where the first derivative goes through zero you can determine the max. of the thermal expansion and thus the softening point of the material.
Ceramics / Powder metallurgy
In production processes of high-tech ceramics a simulation of sinter processes is of high interest. When using the optional software package RCS (rate controlled sintering) it is possible to program controlled sintering with a dilatometer as per PALMOUR III theory. The following application is a sintering process of ZrO2. Here the final density of 100% is achieved. The initial heating rate decreases as the final density is reached.
