Measured variables of the thermal analysis

The development of materials and processes, the construction and operation of machines and systems and the design of buildings require knowledge of material properties.

In physics, chemistry and materials science, these properties are described by physical parameters. Some of these parameters are also the basis for process control and quality assurance in production.

Here is our selection of

Measured variables

Our measuring devices can determine the following physical measured variables

Elastic modulus

Enthalpy

Hall coefficient

Contact angle

Length extension

Change in mass

Seebeck coefficient

Specific heat capacity

Thermal diffusivity

U-value

Heat flow

Thermal conductivity

ZT figure of merit

Electrical conductivity

Overview of the

Chemical and physical processes

Below you will find an overview of possible processes in materials research.

1. Chemical processes:

  • rusting, tarnishing, oxidation of metal, e.g. iron + oxygen → iron oxide
  • combustion of fuel such as petrol or coal
  • electrochemical processes in batteries
  • smelting of iron in a blast furnace
  • production of plastics
  • solidification as a process phase of the hydration of concrete and mortar

The chemical properties of a material determine its reactivity and corrosion resistance. The physical properties of a material are characterized by its color and melting point, for example.

2. Physical processes:

  • Freezing, heating, evaporation: ice → water → water vapor
  • Air liquefaction
  • Shape change and heating during machining and shattering
  • Mixture formation in the gasoline engine
  • Mixing of gases

During physical processes, substances change their external form, their state of aggregation. The state of aggregation depends on the energy state.

The identification of phase transformations or a change in mass under the influence of temperature can be observed and characterized by electrical conductivity or thermal expansion. The robust and easy-to-use LINSEIS analyzers provide exact results for all conceivable research, development and quality control tasks.