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	Light Flash Apparatus LFA 447 NanoFlash™ Advancing the State of the Art in Flash Techniques See also: LFA 427 | LFA 457

Versatile: Thermal Diffusivity Specific Heat Thermal Conductivity Through and In Plane Bondline Resistance Flexible: Automatic Sample Changer Variable Flash Pulse Width Powerful Windows Software Ambient and Elevated Temperature Testing (up to 300°C)           The new LFA 447 NanoFlash™ light flash system makes thermal properties testing fast, easy and affordable.   The NanoFlash™ is the result of NETZSCH and Holometrix Micromet's passion for engineering excellence and unmatched flash diffusivity application experience, resulting in an exceptionally powerful tool for measuring thermophysical properties.   Conforming to ASTM E1461, the Xenon flash lamp based NanoFlash™ uses optical coupling to heat and read the sample surfaces, eliminating potential interface thermal resistance, and making accurate measurement of thin samples, coatings on a substrate and materials in a thin film or sandwich possible. The NanoFlash™ can test samples both through and in the sample plane over a diffusivity range covering materials from neat and filled polymers to diamond.   The NanoFlash™ is fully automated: powerful Windows based software controls the test temperature, flash lamp firing, and data analysis. The available automatic sample changer allows the instrument to measure multiple samples in one test. Each data point normally takes less than five minutes from the time the furnace reaches the test temperature. The instrument independently sets the flash power level, pulse width and temperature for each sample.       Principle of Operation User replaceable xenon flash lamps fire a pulse at the sample's lower surface, while the infrared detector measures the temperature rise of the sample's top surface. The sophisticated software then determines the sample's thermal diffusivity.   Specific heat is measured by comparing the actual temperature rise of the sample to the temperature rise of a reference sample of known specific heat.   The instrument can measure thermal diffusivity (a) and specific heat (cp) simultaneously. The software uses these values and the bulk density (r) to calculate thermal conductivity (l) from the equation: l=arcp       TECHNICAL SPECIFICATIONS Sample Size 1" (25.4mm), 0.5" (12.7mm) diameter, or 8mm square, up to 0.12" (3mm) thick* Temperature Range   LFA 447/0 Ambient, or as controlled by external fluid source LFA 447/1 Ambient to 200C LFA 447/2 Ambient to 300C Thermal Diffusivity Range 0.001 to 10 cm2/sec Repeatability Thermal Diffusivity: +/- 3%   Specific Heat: +/- 5% Accuracy Thermal Diffusivity: +/- 5%   Specific Heat: +/- 7% Illumination Two Xenon Flash Lamps, User Replaceable   Wavelength: Wide Spectrum   Pulse Energy: 0-5 J/CM2 Sensor Type INSb IR Detector with integral dewar Utilities 115 or 230V — 50/60 Hz, 10A   Liquid Nitrogen - approx. 1l /8hrs (Integral dewar detector only) Dimensions (LxWxH) 24 x 22 x 17 in              NETZSCH Instruments, Inc. also offers contract thermal testing services and a complete family of thermal analysis and thermoset cure monitoring instrumentation.