Laser Flash Thermal Conductivity Tester
Published: 7/16/2025
Laser flash method instrument for measuring thermal diffusivity, specific heat, and calculating thermal conductivity of solids, liquids, melts, slags, and films. Suitable for metals, ceramics, graphite/carbon fibers, polymers, filled plastics, insulating solids, granular and powder materials, compliant with GJB 1201.1-91 and ASTM D1461.
Product Description
The DRX-II-JG series is a modular laser flash system that irradiates the sample with a short laser pulse and uses a high‑speed infrared detector to capture the rear-surface temperature rise, from which thermal diffusivity is calculated; with density and specific heat, thermal conductivity is determined. The platform supports interchangeable furnaces to cover selectable temperature ranges and accommodates multiple sample holders for solids, low- and high‑viscosity liquids, viscous semi‑solids, elastic solids, thin films, melts, and slags.
A compact architecture separates hardware from electronics and supports automated loading of up to three positions with single-sample testing per run. The system enables vacuum or controlled atmospheres (inert, oxidizing, reducing; static or dynamic), multilayer contact thermal resistance analysis, and comparative specific heat calculation using reference standards, with PC connectivity for fully automated control and report generation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Details | Measurement principle: Laser flash (rear-surface IR detection) Standards compliance: GJB 1201.1-91; ASTM D1461 Temperature range options: Ambient; RT–500 °C; up to 1200 °C (additional furnace options available for -125 to 2800 °C on series platform) Thermal diffusivity range: 0.01–1000 mm²/s Thermal conductivity range: 0.1–2000 W/m·K Pulse source: Nd:YAG laser Pulse energy: 15 J per pulse Pulse energy adjustable: Yes Pulse interval adjustable: Software set Detector: InSb/MCT, air-cooled Measurement mode: Non-contact surface temperature rise via IR detector Sample dimensions (square): ≥ 10 × 10 mm Sample dimensions (round): Ø12–20 mm (Ø20 mm special optional) Sample thickness: 0.1–10 mm (3 mm recommended) Sample types: Solid bulk; low- and high‑viscosity liquids; viscous semi‑solids; elastic solids; thin films (solid powders require customization) Sample capacity (loader): Up to 3 positions; single sample measured per run; automatic loader included Atmosphere modes: Vacuum and protective atmospheres (inert, oxidizing, reducing; static or dynamic); standard configuration ambient air Analysis functions: Multilayer contact thermal resistance analysis; calculation of thermal resistance and thermal diffusion rate; comparative specific heat using known reference Accuracy: ±4% Repeatability (overall): ±3% (most materials) Repeatability (thermal diffusivity): ±2% (most materials) Data acquisition rate: 2 MHz Host interfaces: USB and dedicated portable interface; optional Ethernet for data interconnection and remote testing Control software OS support: Windows 10 64-bit Typical configuration: Test host with high-temperature furnace; auto sampler; test software; PC set |
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B6-101, Zhongnan High-Tech Intelligent Manufacturing Industrial Park, No. 10 Shuangma Street, Yuetang District, Xiangtan City, Hunan Province, China
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