Thermal Conductivity & Diffusivity

LFA 500

Over the years, the flash method has become one of the most common method to measure the thermal conductivity and thermal diffusivity of different types of solids, liquids and powders. The LINSEIS Light Flash LFA 500 is a versatile instrument that can measure the thermal conductivity, thermal diffusivity and specific heat values for up to 18 samples in a single testing process.


Model LFA 500
Temperature range: -100°C up to 500°C
RT up to 500°C / 1000°C / 1125°C 
Pulse source: flash-lamp
Pulse energy: 15 J/pulse
Adjustable power:  Yes
Measuring range alpha 0.01 up to 2000 mm2/s
Measuring range lambda: 0.1 to 4000 W/(m∙K)
Repeatability cp: ±3% (for most materials)
Repeatability alpha: ±1.9% (for most materials)
Accuracy cp: ±5% (for most materials)
Accuracy alpha: ±2.4% (for most materials)
Pulse length: software adjustable
Sensor type: InSb, LN2 cooled
Sample dimensions: ∅ 3, 6, 10, 12.7 or 25.4 mm
square samples 10x10 or 20x20 mm
Sample thickness: 0.1 mm ... 6 mm
No. of samples: sample robot for up to 18 samples
Sample holder: graphite, Al2O3, metal, SiC, others
optional: liquids, powders, pastes etc
Atmospheres: inert, oxidizing, reducing, vacuum
Electronics: Integrated
Data acquisition: 2 MHz
Interface: USB / Ethernet