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TMA PT 1600

Vertical Thermomechanical Analyzer TMA PT1600

Description

On point

The design of the TMA PT 1600 Thermomechanical Analyzer guarantees highest precision, reproducibility and accuracy. The system was constructed to performing a variety of Thermomechanical experiments, on an array of sample shapes and sizes, over a wide temperature range, to meet all TMA needs. The system can perform either static or dynamic measurements due to a built in force/frequency generator.

Typical materials under investigation are: composite materials, glass, polymers, ceramics and metals. The variety of measuring systems allows sample geometries such as fibers, rods, films, rods or cylinders.

TMA modules

TMA / DTMA Features

With low constant load:

  • Linear thermal expansion evaluation
  • Change of volume
  • Phase transformation
  • Sinter process evaluation
  • Softening point determination
  • Transformation points
  • Swelling behavior
  • Tension

With increased constant load:

  • Penetration
  • Transition and comparison tests
  • 3 point bending test

With dynamic load:

  • Visco-elastic behavior

Additional optional features:

  • DTA evaluation
  • (RCS) Rate controlled sintering software

 

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Specifications

TMA-1600
Model TMA PT 1600
Temperature range: RT up to 1600°C
Price range: $$
Sample size: 30 mm
Force: up to 1/5.7/20 N
Frequency: 1 Hz
Resolution: 0.125 nm
Atmospheres: red., inert, oxid., vac. static/dynamic
Electronics: Integrated
Interface: USB

Accessories

Dilatometer Gas Dosing Linseis Turbo Pumpe

  • Liquid nitrogen cooling accessory (automatic control of LN2 supply)
  • Turntable for multiple furnace configuration
  • Selection of fused silica / stainless steel sample holders and probes of various geometries
  • Vernier caliper for online input of the sample length
  • Selection of vacuum and turbo molecular pumps
  • Manual, semi-automatic and automatic (MFC) gas control boxes

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.

TMA-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

Application example: Elastomer (non high temperature in this case)

Because of their very special and versatile properties, polyurethanes Elastomers have found wide application in virtually every industry, varying from the automotive, electrical and electronic industry, design and textile industry, to the mining and heavy duty industry.

Evaluation of Elastomers specifically developed for applications above 0°C. The glass point was detected at 29.9°C. When further increasing the temperature, additional expansion of the material in the elastic range occurs. The plastic range of the material has not been reached during this evaluation.

 

TMA 1600 Applikation Elastomer

Determination of Young’s Modulus using Linseis TMA PT1600

The Linseis TMA PT 1600 can apply sinus shaped force programs to any sample. This enables the user to determine the bending and also Young’s Modulus of almost any material. Initially designed for mainly polymer applications, the Linseis TMA PT 1600 has recently been upgraded to be able to measure also harder materials such as metal alloys and pure metals, using force ranges up to 20 N by enlarging the possible sample size. In the application below a nickel sample of 8.4 mm length, 5.12 mm diameter and 0.2 mm thickness was measured using a static force of 500 mN and a fluctuating sinus shaped force of additional 1 N. The blue curve shows the movement of the sample as change in length that is caused by the force and the red curve shows the resulting E-modulus of this 3-point-bending experiment. The experiment was performed at 50 °C and is very close to literature data. One could also perform this at any temperature the instrument could achieve to be able to screen a larger range.

 

TMA 1600 Applikation Elastomer

Difference in thermal expansion behavior of bricks depending on relative humidity

Humidity can have a huge influence on many materials, especially materials that are used for packaging or construction such as polymers, wood, bricks, concrete and many more. In the given application, two historical brick variants have been investigated and compared to contemporary, similar bricks regarding their expansion at different humidity levels. Therefore, the materials were first measured at linear expansion mode using a Linseis TMA PT 1600. The result was a straight forward linear expansion. Then the same experiment was repeated using a water vapor generator to simulate 35% relative humidity. The samples were kept at these conditions for 2 h and then the expansion coefficient was again determined vs temperature keeping the humidity level constant. The result shows a significant increase in linear expansion behavior due to swelling of the material. This effect will occur at any humidity level and should be considered carefully when calculating the expansion of such materials for any application.

 

TMA 1600 Applikation Elastomer

External application:

Preparation of rigid polyurethane foams as inner wetted thermal insulation (published AIP Conference Proceedings)

Rigid Polyurethane Foams as External Tank Cryogenic Insulation for Space Launchers (published IOP Conference Series: Materials Science and Engineering)

Downloads

TMA Product Brochure(PDF)

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