Netzsch has conducted a study to compare the results for determining the thermal conductivity (λ) of graphite granulate using two different standard measurement methods, the Laser Flash Technique and the Hot Wire Method. The Netzsch instruments LFA 427 and TCT 426 were used in the study to represent the respective techniques, and it was concluded that both are suitable for the purpose. The allowable temperature range and sample grain size (shape and dimension), however, differed between the methods. It was possible to conduct measurements on the LFA 427 in the temperature range from RT to 2000°C, but only on granulate with a grain size no larger than 0.1mm. Measurements on the TCT 426, on the other hand, could be conducted from RT to only 1000°C, but on a grain size of up to several millimeters.
Netzsch has conducted a study to compare the results for determining the thermal conductivity (λ) of graphite granulate using two different standard measurement methods, the Laser Flash Technique and the Hot Wire Method. The Netzsch instruments LFA 427 and TCT 426 were used in the study to represent the respective techniques, and it was concluded that both are suitable for the purpose. The allowable temperature range and sample grain size (shape and dimension), however, differed between the methods. It was possible to conduct measurements on the LFA 427 in the temperature range from RT to 2000°C, but only on granulate with a grain size no larger than 0.1mm. Measurements on the TCT 426, on the other hand, could be conducted from RT to only 1000°C, but on a grain size of up to several millimeters.
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