Thermal physics

Topic

Thermophysikalische Eigenschaften des Glases BK 7
Thermophysical properties of BK 7 glass.

In the field of Thermophysics, thermophysical properties and parameters of materials are identified.

 

Methods

 

  • Thermomechanic analysis [TMA]/thermodilatometry [TD]/heating microscopy [HM]/optical thermodilatometry
  • Differential scanning calorimetry [DSC]
  • Laser-flash-analysis [LFA]
  • Buoyancy or immersion method for determination of density at room temperature
  • Thermoelectrical conductometry
  • High-temperature X-ray diffractometry

 

Thermophysical properties in dependence on temperature

 

  • Thermal expansion coefficient, density
  • Specific heat capacity
  • Phase transitions (temperature, enthalpies), phase diagrams
  • Thermal diffusivity
  • Heat or thermal conductivity
  • Specific electrical resistance or conductivity
  • Wetting parameters

 

Services offered

 

  • Identification of thermodynamical and thermophysical properties in a temperature range of -150 to 2000 °C
  • Offering of thermophysical data sets for simulation
  • Systematization of dependencies

 

Technical equipment of accredited laboratory

 

  • Thermomechanical analyzer TMA402 [TMA] (Kanthal furnaces, temperature range from -170 to 900 °C, oxidizing or inert atmospheres, sample length up to 25 mm, sample diameter up to 8 mm)
  • Thermodilatometer DIL402/NGB [TDIL-cDTA-EGA] (SiC furnace, temperature range from 25 to 1550 °C, all atmospheres, sample length up to 25 mm, sample diameter up to 7 mm)
  • Thermodilatometer DIL402 E7/ NGB [TDIL-cDTA-EGA] (SiC and graphite furnace, temperature range from 25 up to 2000 °C, all atmospheres, sample length up to 25 mm, sample diameter up to 6 mm)
  • Differential scanning calorimeters DSC 404 NGB [DSC] (platinum furnaces, temperature range from 25 to 1500 °C, oxidizing or inert atmospheres, sample diameter up to 5 mm, sample height smaller than 2 mm)
  • Differential scanning calorimeter DSC 404C NGB [DSC] (platinum furnaces, temperature range from 25 to 1500 °C, oxidizing or inert atmospheres, sample diameter up to 5 mm, sample height smaller than 2 mm)
  • Laser flash analyzer LFA 427 [LFA] (SiC furnace, temperature range from 25 up to 1500 °C, all atmospheres, sample diameter up to 12.7 mm, sample height between 0.1 and 4 mm)
  • Light-flash-analyzer (Nano-Flash) LFA447 [LFA] (temperature range from 20 up to 300 °C, air, sample diameter up to 25.4 mm, sample height between 0.1 and 4 mm)
  • Heat or thermal conductivity tester TCT416 (room temperature, air, sample geometry: 20 or 35 mm x 5 mm x 5 mm, 20 or 35 mm x 6 mm diameter)