Thermal Conductivity Tester(Light/Laser Flash Method)
Get a quote：
Whats/App: +86 181 0160 0864
Web: gellowen.co.uk
Transient Laser Flash Thermal Conductivity Tester is a high-precision instrument designed to measure thermal diffusivity and thermal conductivity of high-conductivity solid materials, such as metals, diamond, graphite, and other advanced materials. Based on the laser flash method, the instrument delivers a short, high-intensity energy pulse to the sample surface, causing a temperature rise on the rear surface. The time to reach half of the maximum rear-surface temperature (half-rise time) is recorded and processed by a dedicated mathematical model to calculate thermal diffusivity and thermal conductivity. The instrument offers rapid measurement, high accuracy, wide temperature applicability, and non-contact testing, making it indispensable for research, industrial quality control, and production monitoring.
Application
The tester is suitable for testing thermal properties of:
Metals, alloys, and advanced ceramics
Graphite, graphene, silicon carbide, diamond
Thermal interface materials and high-conductivity composites
Applications include:
Materials research in universities and institutes
Quality control in industrial production
R&D laboratories for advanced thermal management materials
Rapid thermal testing for both research and industrial applications
Standards
The instrument complies with the following international and national standards:
GB/T 22588-2008
Flash Method for Measuring Thermal Diffusivity or Thermal Conductivity of Materials
ASTM E1461-2022
Standard Test Method for Thermal Diffusivity of Solids by the Flash Method
GB/T 42919.4-2023
Plastics – Determination of Thermal Conductivity and Thermal Diffusivity – Part 4: Laser Flash Method
ISO 22007-4:2017
Plastics – Determination of Thermal Conductivity and Thermal Diffusivity – Part 4: Laser Flash Method
Parameters
| Item | Specification |
|---|---|
| Sample size | Ø12.5 × 0.5–5 mm; square 10 × 10 mm; thickness 1–5 mm |
| Thermal conductivity range | 0.1–2000 W/m·K |
| Thermal diffusivity range | 0.1–1000 mm²/s |
| Accuracy | Thermal diffusivity ±4%, Specific heat ±5% |
| Test temperature range | Room temperature; RT–200 °C, RT–300 °C, RT–500 °C (optional) |
| Temperature precision | ≤0.1 °C with high-temperature inert gas protection |
| Heating rate | ≥5 K/min |
| Repeatability | Deviation <±3% |
| Laser source | Max 15 J/pulse, pulse width 0.1–10 ms, continuous adjustment, software controlled |
| Laser spot | Adjustable |
| Detector | Infrared MCT-CT, air-cooled |
| Sampling frequency | Up to 200 kHz |
| Control system | PLC + Windows, fully automatic software for measurement, analysis, and report generation |
| Power supply | AC 220 V, 500 W |
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