High-temperature thermal conductivity of neon at temperatures up to 5000�K and argon up to 6000�K

Vargaftik, N. B.; Vasilevskaya, Yu. D.

doi:10.1007/bf00820558

Cited by 2 publications

(2 citation statements)

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“…where 𝑘 g * is the thermal conductivity of the gas in free space (In this article, the 𝑘 g * of argon was quoted from reference 23 ). 𝛽 is related to the heat exchange efficiency between gas molecules and solids in materials, and the value of 𝛽 is usually 1-2. 𝜆 ̅ is the mean free path of the gas.…”

Section: Nano Enabled Thermal Insulation Materialsmentioning

confidence: 99%

Carbon Nanostructure Enabled High Performance Thermal Insulating Material

Jiang,

Yuan,

Chen

et al. 2024

Preprint

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The high-temperature thermal insulation materials (TIM) are critical for aerospace technology. The more thermal insulation it is, the thinner TIM is needed. Here we show that, by stacking super-aligned carbon nanotube (SACNT) films together, SACNT-stacked films (SACNT-SF) can be obtained, which outperforms the traditional TIMs for a wide range of working temperatures. In vacuum, the effective thermal conductivity of SACNT-SF is only 0.004W/m·K at room temperature, and 0.03 W/m·K at 2600℃. Theoretical analysis indicates that the nanometer diameter of the carbon nanotube, the nanoporous and anisotropic structure and the ultra-low density of SACNT-SF, and the high extinction coefficient of sp2-carbon play critical roles in reducing heat conduction via solid skeletons, radiation, and gas medium. The SACNT-SF is nanometer thick and fully flexible, which can be continuously and freely winded on various shapes of surfaces, generating a conformal TIM for a broad spectrum of applications.

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Section: Nano Enabled Thermal Insulation Materialsmentioning

confidence: 99%

Carbon Nanostructure Enabled High Performance Thermal Insulating Material

Jiang,

Yuan,

Chen

et al. 2024

Preprint

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show abstract

“…The studies [25][26][27] presented results of generallzation of test data on the thermal conductivity of all monatomlc gases at temperatures up to 5000-6000~…”

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confidence: 99%