LINSEIS - Model L76 Platinum Series -Measurement 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°Cwith 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 packageLINSEIS 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.

• Temperature range*: RT ... 1000/1400/1600°C
• Heating/cooling rates**: 0.01 K/min ... 50 K/min
• Sample holders: fused silica < 1100°C;  Al2O3 < 1600°C
• Sample length: max. 50 mm
• Sample diameter: 7/12/20 mm
• Measuring range: 500/5000 µm
• Resolution: 1.25 nm
• Atmospheres: inert, oxidizing, static/dynamic
• Calculated DTA: optional software package
• Electronics: Integrated
• Inteface: USB

AllLINSEIS thermo analytical instrumentsare PC controlled. The individual software modules exclusively run underMicrosoft® 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.

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

Materials

Ceramic/Glass/Building Materials

Industries

Ceramics, Building Materials and Glass Industry, Research, Development and Academia

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.

Here is a short extract of our available accessories:

• 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