Measurement of thermal conductivity of carbon fiber reinforced plastic (CFRP)
Thermo Wave Analyzer TA33/35
Leave the measurement of the thermal conductivity of carbon fiber reinforced plastic (CFRP) to us.
Carbon fiber reinforced plastics (CFRP), used in electric vehicles, aircraft, satellites, and rockets, require precise knowledge of thermal conductivity. For instance, when used in electric vehicles, understanding thermal conductivity is essential for heating performance and battery thermal management. Changes in electricity consumption due to heating performance and thermal management significantly affect driving range. Similarly, when used in satellites and rockets in the harsh environment of space, it is necessary to understand thermal conductivity to ensure heat resistance performance. With Bethel, you can accurately measure the thermal conductivity of this carbon fiber reinforced plastic (CFRP).
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basic information
Now, as you all know, carbon fiber reinforced plastic is made by impregnating resin into woven carbon fibers, resulting in significantly different thermal conductivity in the thickness direction compared to the plane direction of the sheet material. Such materials are not easily measured with general thermal conductivity measurement devices. However, with the ThermoWave Analyzer from Betel Co., Ltd., it is designed to measure anisotropic materials, allowing for simple and accurate measurements. Let me introduce some actual measurement examples. Sample size: Up to 100mm x 100mm and thickness up to 2mm. Measurements can be taken for sample sizes of Φ10mm or larger. It is not necessary to cut them precisely. Measurement directions: Measurements can be taken in both the thickness direction and the in-plane direction. Mapping measurements are also possible. Measured physical properties: Thermal diffusivity, specific heat, density, thermal conductivity.
Price information
Please check the detailed prices from the link below. https://hrd-thermal.jp/measurement/value/
Price range
P3
Delivery Time
P4
※We will provide the report approximately two weeks after receiving the standard sample.
Applications/Examples of results
The measured sample is a plate-shaped CFRP material. Figure 1 shows the plate-shaped CFRP. The thermo-wave analyzer can accommodate samples up to 100mm square, but this time it was cut to 50mm square for measurement. By the way, with this device, it is not necessary to cut to a specific shape; as long as the size is Φ10mm or larger, measurement is possible. Additionally, the thickness of the CFRP measured this time is 1mm. Figure 2 shows the CFRP for measurement. Furthermore, the installation of the sample is very simple. It can be measured just by placing it on the sample stage. Figure 3 shows the sample installation state. Measurements and analysis are conducted using the thermo-wave analyzer. The next photos show the measurement screen and the analysis screen. Figure 4 shows the measurement screen, and Figure 5 shows the analysis screen. Here are the measurement results. For samples like the one this time, which are relatively thin and have high thermal conductivity, a measurement method called the unsteady method, such as this device, is used. In the unsteady method, the thermal diffusivity is measured directly. Thermal diffusivity in the thickness direction: 2.25×10^-7 [m²/s] Thermal diffusivity in the in-plane direction: 5.06×10^-6 [m²/s] If thermal conductivity is required, it is calculated from specific heat and density. In this case, literature values were used to determine the thermal conductivity. Thermal conductivity in the thickness direction: 0.34 [W/m·K] Thermal conductivity in the in-plane direction: 7.6 [W/m·K]
Detailed information
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Figure 1: Plate-shaped CFRP
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Figure 2 CFRP Sample
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Figure 3: CFRP Installation Status
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Figure 4 Example of Measurement Screen
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Figure 5 Example of Analysis Screen
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Company information
Leveraging the assembly technology cultivated over many years, we have expanded our business areas to include the development of precision component assembly, thermal property measurement devices, contract measurement services, and the development of medical and dental plastic products equipped with clean rooms. We deepen and integrate our "original products" from a unique manufacturing perspective, consolidating our know-how and technology. With "speedy decision-making and execution," which is a strength unique to Bethel, we provide high-quality products under the "Made by BETHEL" label. Our wish at Bethel is for our customers who use Bethel products to be satisfied with our products, manufacturing, and services, and to feel that they made the right choice in trusting our company. Furthermore, we hope that the satisfaction of our customers will lead to the happiness of each employee who works here.