Flash Diffusivity Analyser
TA Instruments offers a range of instruments for measuring thermal diffusivity by the flash method up to 1200°C. This technique also allows for the measurement of specific heat capacity and thermal conductivity of materials with a wide range of thermal properties. All systems include multiple specimen testing capability that provides several times increase in productivity and improves specific heat capacity measurements. Full time pulse mapping, precision optics, and the latest data analysis models make the Discovery Flash platform the most accurate and precise system of its kind.
DXF - 500 - RT to 500°C - Xenon Flash
DXF - 900 - RT to 900°C - Xenon Flash
DLF - 1200 - RT to 1200°C - Laser Flash
All Discovery Flash source modules employ full-time pulse mapping and recording capability. This allows for precise pulse-shape and pulse-width correction calculations and the most accurate determination of the t0.
The Discovery Flash data analysis software also employs the latest methods for heat loss corrections. The Clark and Taylor method is utilized as the most accurate general purpose procedure for accurately determining thermal diffusivity based on the finite pulse width, radiation heat losses, and non-isothermal local sample conditions. Additionally, more than 20 different analysis models and correction programs are incorporated into the software, providing the highest accuracy for all material types.
Available Models include:
• Clark and Taylor • Cowan • Degiovanni • Koski • Least Squares • Logarithmic • Moment • Heckman • Parker
Discovery Flash instruments utilize high sensitivity, quick response sensors for the most accurate measurement of transient temperature changes. As an integral component of the environmental module, the detector is factory-aligned to the sample and does not require user exchange or alignment. The detector type is selected specifically for the operating temperature range of the Environmental Module. For moderate to high temperature measurements, an indium antimonide (InSb) IR detector is employed. The IR detector is cooled with liquid nitrogen to ensure the most stable output and maximum repeatability.
Standard & Universal
The flash method is widely accepted and is documented in ASTM E1461, ASTM E2585, DIN EN821, DIN 30905, ISO 22007-4:2008, and ISO 18755:2005. All TA Instruments Discovery Flash instruments conform to these standards and can be relied on to produce accurate, repeatable results that can be easily compared between laboratories.