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Simultaneous Thermal Analysis – STA (TGA-DSC)

Thermogravimetric Analysis TGA + Differential Scanning Calorimetry DSC

Simultaneous TGA-DSC measures both heat flow (green curve) and weight changes (orange curve) in a material as a function of temperature or time in a controlled atmosphere. Simultaneous measurement of these two material properties not only improves productivity but also simplifies interpretation of the results.

The complimentary information obtained allows differentiation between endothermic and exothermic events which have no associated weight loss (e.g., melting and crystallization) and those which involve a weight loss (e.g., degradation).

STA application of cement

The application example gives an impression about the information obtained by a STA (TG-DSC) measurement. The result provides information about the exact composition of the cement sample as you can determine the amount of humidity, the quality and amount of the contained quartz as well as temperature stability of the material.

Linseis STA-Series

STA PT 1000 (TGA-DSC)

STA PT 1000
  • (TGA) Thermogravimety and (DSC) Differential Scanning Calorimetry
  • True top loading TG-DSC heat flux sensors
  • Numerous user excheangable TG, TG-DSC and TG-DTA sensors for any kind of application
  • Temperature range: RT up to 1000°C

Details

STA PT 1600 (TGA-DSC)

STA oder TGA PT 1600
  • (TGA) Thermogravimety and (DSC) Differential Scanning Calorimetry
  • True top loading TG-DSC heat flux sensors
  • Numerous user excheangable TG, TG-DSC and TG-DTA sensors for any kind of application
  • Modular design: sample robot, turntable for up to two furnaces, vacuum tight design, different gas dosing systems, high pressure (up to 5 bar) option, vapor dosing system etc.
  • Temperature range: -150 up to 1600/1750/2000/2400°C

Details

STA HP 1 / 2 (TGA-DSC)

Linseis STA Hochdruck
  • Worlds only pressure TG-DSC (STA)
  • Combined (TGA) Thermogravimetry – (DSC) Differential Scanning Calorimetry
  • Different Gas and Vapor Dosing accessories
  • RT up to 1000/1400/ 1600/ 1800°C
  • From Vacuum up to 150 bar

Details

STA HP 3 (TGA-DSC)

Linseis Hochdruck TGA STA HP 3
  • Unique high-pressure STA in table version (Top-Loading)
  • Combined analysis of weight changes and caloric events (TGA-DSC)
  • Small furnace allows fast gas changes
  • RT up to 1200°C
  • From Vacuum up to 150 bar

Details

STA MSB PT 1

Linseis STA/TGA MSB
  • Magnetic Levitation Balance (MSB)
  • Separation of balance and reactor for most demanding applications
  • -196 up to 2400°C
  • From Vacuum to 150 bar
  • For corrosive and toxic gases

Details

Technical features

The LINSEIS STA Simultaneous Thermal Analyzer can be used to determine simultaneous changes of mass (TG) and caloric reactions (DSC) of a sample in the temperature range from –150°C up to 2400°C. The unique characteristics of this product are highest precision, highest resolution and long term drift stability.

The STA Series was especially developed to meet the challenging demands of the high temperature as well as low temperature applications. To cover this broad range, several specifically designed furnace types are available.

Linseis STA series temperature range and pressure range

 

Furthermore MS (Mass Spectrometer) and FTIR Spectrometer couplings can be added to receive unique additional information. Due to its superior performance, user friendliness and modularity, the Linseis Simultaneous Thermal Analysis devices are an indispensable tool for every thermo analytical user.

High Precision Beam Balance of TGA

Our different microbalances are specifically designed to accomplish thermal analysis tasks in the best possible way. Providing ultra light weight design to follow fast weight changes and symmetric construction for ultra low drift long term measurements.

What simultaneous TGA and DSC can tell you

  • Oxidative/Thermal Stability of Materials:
    Aging of polymers like PE, PP, PVC and other common plastics
  • OIT (Oxidation Induction Time/Temperature): Estimated lifetime of oils, fats, lubricants, fuels, plastics and rubber used for instance in sealing’s, and tubing’s.
  • Composition of Multi-component Systems:
    Like raw coal or mineral ores (carbon and ash content, melting and decomposition behavior of the constituents)
  • Moisture and Volatiles Content of Materials: Moisture of various fuel materials like wood, oil, fat; binder content in polymers or sinter metals
  • Melting and Boiling Points:
    Melting and boiling point determination for material characterization
  • Phase changes:
    Crystallinity of Polymers; polymorphism of pharmaceuticals, phase transitions in steels
  • The Effect of Reactive Atmospheres on Materials:
    Reaction enthalpy determination at different oxygen levels for fuels and coal
  • Sorption Properties:
    Sorption properties for catalysts investigation and hydrogen storage materials
  • Heats of Fusion and Reactions:
    For example heat of reaction for catalysts to get an idea about needed cooling

Measurable properties

  • Mass change as % and mg
  • Rate controlled mass loss
  • Evaluation of mass loss
  • Residue mass evaluation
  • Compositional analysis
  • Enthalpy
  • Endo- / Exothermic reactions
  • Phase transformation
  • Melting point
  • Glass point
  • Crystallinity
  • Thermal stability
  • Oxidation stability
  • Purity
  • Solidus / Liquidus relationship
  • Product identification

 

You are interested in a STA?

You need more information?

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Quicklinks

Linseis Webinare-STA PT 1600

 STA PT 1600 Webinar on Demand

Learn all about the STA PT 1600 series, accessories, various applications and much more in our webinar.

Topics covered:

  • Measuring principle of Simultaneous Thermal Analysis (DSC + TGA)
  • Overview of the STA units in terms of temperature range and pressure
  • Explanation of the measuring principles TGA and DSC
  • System of a STA
  • Crucibles, sensors, furnaces and accessories
  • Applications
  • Customized devices e.g. STA HP and applications

 

Go to webinar >>

Downloads

Linseis Product Overview English

Product Overview
ENGLISH (PDF)

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Linseis Produktbroschüre STA

STA Product
brochure (PDF)

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