Measuring Thermal Conductivity in Marble: Why Sample Size Matters

With the advanced TCT 716 Thermal Conductivity Tester, NETZSCH offers a unique advantage: the ability to handle larger specimen sizes, minimizing the influence of minor inconsistencies within the material. Whether you're working with natural stone, plastics, or other materials, the TCT 716 Lambda allows that even inhomogeneous samples yield highly accurate, representative measurements. Its precision is based on the Guarded Heat Flow Meter (GHFM) method, which reduces measurement errors by means of the so-called guard and provides reliable results for different sample types.

Why is this important? For applications in areas such as flooring, countertops, or industrial applications where Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity is a key performance factor, ensuring accuracy and representativeness of your measurements is essential. Thanks to the NETZSCH TCT 716 Lambda, you can obtain reliable data on larger samples, which means you won't miss the subtle variations that could affect your final product. Best of all, you can measure two samples independently at the same time.

Dive deeper and find out how the TCT 716 Lambda can make a difference in your materials testing.