DIL L76
Robust Economy Horizontal Dilatometer
Description
On point
The main application field for the LINSEIS DIL L76 Dilatometer series is the CTE measurement of ceramics, brick, tile, porcelain and building materials. Furthermore it is widely used for quality control purposes in ceramics and in metal industries.
The determination of the optimum temperatures for individual sintering stages can be made on the basis of the curve supplied by the dilatometer.
Thanks to the fact we started to develop and build Dilatometers in the year 1955, this instrument is very reliable and covers a wide temperature range from RT up to 1000°C, 1400°C and 1600°C with user exchangeable furnaces. It consists of measurement systems made out of quartz glass (up to 1100°C) and Al2O3 (up to 1600°C).
The sensor is a highest precision LVDT (linear variable differential transformer), which has an indefinite resolution. Together with the 32 Bit software package LINSEIS WIN-TA / WIN-DIL, the Dilatometer provides an excellent solution for standard quality control type CTE measurements.
The following physical properties can be measured:
- CTE
- Linear Thermal Expansion
- Alpha Physical
- Sintering Temperature
- Phase Transformations
- Softening Points
- Decomposition Temperatures
- Glass Transition Temperatures
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Specifications
Black and white
| Model | DIL L76* |
|---|---|
| Temperature range: | RT … 1600°C |
| Price range: | $ |
| LVDT: | |
| Delta L resolution: | 0,05 nm |
| Measuring range: | +/- 2500 µm |
| Contact force: | — |
| Optical Encoder: | |
| Delta L resolution: | 1 nm |
| Measuring range: | +/- 25000 µm |
| Automatic sample length detection: | yes |
| Force modulation: | no |
| Contact force: | 50 mN up to 3N |
| Multiple furnace configuration: | optional |
| Motorized furnace operation: | optional |
| Gas dosing: | manual gas dosing or mass flow controller 1/3 or more gases |
| – (Unsichtbar, siehe EXTRA CLASS NAME unten) – | – (Unsichtbar, siehe EXTRA CLASS NAME unten) – |
|---|---|
| Contact force adjustment: | – |
| Single/double dilatometer: | – |
| Softening point detection: | included |
| Density determination: | optional |
| L-DTA: | optional |
| Rate Controlled Sintering (RCS): | optional |
| Thermal library: | optional |
| Electric thermostatization of measuring head: | included |
| Low temperature options: | LN2 |
| Vacuum tight design: | – |
| Automatic evacuation system: | – |
| OGS Oxygen Getter System: | – |
*Specs depend on configurations
Furnaces
| Temperature | Type | Heating element | Atmosphere | Temperature sensor |
|---|---|---|---|---|
| RT – 1000°C | L75/220 | Kanthal | inert, oxid., red., vac. | Type K |
| RT – 1400°C | L75/230 | Kanthal | inert, oxid., red., vac. | Type S |
| RT – 1600°C | L75/240 | SiC | inert, oxid., red., vac. | Type S |
Accessories for DIL
- Sample preparation devices
- Vernier calipers for manual or online input of the sample length
- Selection of manual, semi-automatic and automatic (MFC), Gas Boxes for up to 4 gases
- Rate Controlled Sintering (RCS) Software
- Selection of Dilatometer Measuring Systems
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 Dilatometer measurement. Thanks to our specialists and application experts, LINSEIS was able to develop comprehensive easy to understand user friendly application software.
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
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
Applications
Applications example: Glass sample, softening point
The glass sample was measured with the softening-detection feature. In this case, the heating ramp is terminated either if the target temperature set is reached or if the shrinkage of the sample reaches a given threshold. In the run, the threshold was set to – 100µm – when the change in length measured falls 100µm below the maximum value of the actual heating segment, the heating is terminated and the next (cooling) segment will be processed. So, the softening point can be detected in an easy and safe procedure.
External applications
Low Thermal Expansion of Ba0.5Sr0.5Co0.7Fe0.2Mn0.1O3- cathode Material (published International Journal of ELECTROCHEMICAL SCIENCE)
Dilatometric shrinkage study on magnesium titanate-based ceramic systems (published Journal of Physics: Conference Series)
Study on Thermophysical Properties of medium volume fraction SiCp/Al composites (published IOP Conference Series: Materials Science and Engineering)
