Thermal Diffusivity Thermal Conductivity

Thermal Diffusivity, Thermal Conductivity Information of the thermo physical properties of materials and heat advantages of this non-contact and non-destructive measurement transfer optimization of final products is becoming more and more vital for industrial applications. Over the past few decades, the flash method has developed into the most commonly used technique for LINSEIS offers a variety of instruments to measure the Thermal Diffusi- the measurement of the thermal diffusivity and thermal conductivity vity. The XFA 300 provides a cost effective solution for the temperature of various kinds...

The sample is positioned on a sample robot, located in a furnace. The Absolute technique furnace is then held at a predetermined temperature. At this temperature the sample surface is irradiated with a programmed energy pulse The method used is an absolute measurement technique (for thermal (laser or xenon flash). This energy pulse results in a homogeneous tem- diffusivity) hence there is no need to calibrate the system. perature rise at the sample surface. The resulting temperature rise of the rear surface of the sample is measured by a very sensitive high speed IR detector and thermal diffusivity...

All thermo analytical devices of LINSEIS are PC controlled, the individual software modules exclusively run under Microsoft® Windows® operating systems. The complete software consists of 3 modules: temperature control, data acquisition and data evaluation. The LINSEIS 32 - bit soft- ware encounters all essential features for measurement preparation, execution and evaluation, just like with other thermo analytical experi- ments. Due to our specialists and application experts LINSEIS was able to develop this easy understandable and highly practical software. General Software Evaluation Software...

System Design Detector Iris Furnance Sample Carrier Xenon Flash Xenon Flash Lamp Furnace The LFA/XFA unit is equipped with a high speed, low mass Infrared fur- The Xenon flash lamp offers a cost effective solution to perform Thermo- nace, to ensure fastest possible measuring cycles. physical property measurements. The integrated lamp delivers a maximum energy pulse of 10J/pulse. Sample robot The fully motorized sample robot can carry up to 6 samples (10 or 12.7 Furnace Model mm round or 10 mm square) or up to 3 samples (25.4 mm round). This design allows unbeaten sample throughput and sample...

Graphite is an excellent material for checking the performance of a La- ser/Xenon Flash Thermal Analyzer. The analyzed material shows a maxi- the material which can be analyzed by comparative method or by using a DSC / High Temperature DSC shows a significant increase at higher temperatures. Specic Heat Thermal Conductivity mum thermal diffusivity around room temperature. The specific heat of Thermal Diffusivity The pure metals Copper and Aluminum are used in this example to demonstrate the performance of the LINSEIS Xenon Flash device. The measurement results of the two materials are compared...

Technical Specifications Sample dimesnions Temperature range inert, oxidizing or reducing inert, oxidizing or reducing inert, oxidizing or reducing Measuring range Ther. Diffusivity 0.01 up to 1000 mm2/s Measuring range Ther. Conductivity 0.1 to 2000 W/(m∙K) Repeatability Thermal Diffusivity Repeatability Specific Heat Repeatability Thermal Conductivity ±4% (for most materials) Accuracy Thermal Diffusivity Accuracy Specific Heat Accuracy Thermal Conductivity Pulse source Xenon Flash Xenon Flash Pulse energy Pulse energy adjustment Pulse length adjustment software adjustable software adjustable...

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