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Linseis Thermal Analysis DTA-PT1600
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Features
- Temperature
range -150°C up to +2400°C
- Low heat capacity measuring
head
- Different furnaces available /
-150°C up to +2400°C
- Vacuum up to 10E-5mbar
- Static and dynamic gas
atmospheres
- MS Windows 32 Bit Software
Description
The Linseis DTA uses a dynamic measuring principle. It can measure
endothermal and exothermal heat flows between the sample and the reference.
These heat flows are result of physical or chemical changes of the samples. Very
often a DTA is used for purity measurements of mixtures of metals. This is due
to the fact that the melting point changes in dependence to differing amounts of
impurities.
- Purity
measurements
- Melting point determination
(onset / offset)
- energy content of explosives
stability of
explosives (storage)
Application example DTA
Temperature of potassium sulfat (K2SO4) Potassium sulfat (K2SO4)
is changing it''s crystal structure from an orthorhombic to a hexagonal system at
582°C. The energy that is needed for this restructuring can be determined with
the HDSC method quantitatively (high temperature differential scanning
calorimetry).
Measurements on cast powder for
steel casts
Cast powder for steel casts
A cast
powder is used in steel manufacturing as a lubricant during the steel casting
process. The cast powder melts at 1000°C and form a lubrication film. With this
lubrication film steel can be cast in very small and delicate forms. The initial
heating peaks illustrate the combustion and decomposition of the carbon. During
the cooling cycle, we can see the solidification peaks at approx.1100°C.
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