Light and strong nano-SiC foam with extremely low thermal conductivity ...
2020年9月1日 · Porous nano-SiC sintered at 1300 °C and 1400 °C exhibit excellent balanced high compressive strength (1.44 MPa) and low thermal conductivity (0.064 W/(m·K)). The porous nano-SiC can be invoked as a candidate for high temperature thermal insulation.
Thin-slice structure enhanced hyperelastic composite foams for …
2024年11月29日 · In particular, compared to the unmodified MF, the sound absorption performance of the composite foam was increased by approximately 94.3 % at 500 Hz and 211.2 % at 1000 Hz. Furthermore, it also demonstrated outstanding thermal insulation ability with low thermal conductivity of 0.0319 W/mK and thermal diffusivity of 0.855 mm 2 /s. When placed ...
New technology｜Leading innovation with SEKISUI foam technology
Sekisui’s proprietary thinning technology realizes thin foam of 1 mm or less. With the inherent flexibility of the resin and the bubble cell structure of the foam, the physical high-speed pressure (shock energy) is evenly dispersed. With its flexibility, the foam seals uneven or sharp surfaces to achieve high sealing property.
Lightweight Si3N4@SiO2 ceramic foam for thermal insulation and ...
2023年12月15日 · The as-prepared Si3N4@SiO2 ceramic foam possesses low density (0.377 g·cm−3), high compressive strength (7.5 MPa), low thermal conductivity (0.0808 W·m−1·K−1), and excellent dielectric properties (ε < 1.32, tan δ < 0.009) in the frequency range of 8–18 GHz, and its maximum working temperature in air can reach up to 1100 °C.
CORAFOAM® Low density - Foams - Products - DUNA-Group
CORAFOAM® Low density polyurethane and polyisocyanurate foams are rigid foams mainly used with thermal insulating purposes, thanks to their low thermal conductivity values and their high insulating power.
Ceramic Foams | Tech Ceramic
Ceramic foams are a high porosity cellular structure of open-cell or closed-cell foam and are lightweight, high strength, low thermal conductivity materials. Ceramic foams can be manufactured in a high variability of pore sizes, pore size …
Impact of structural characteristics on thermal conductivity of foam …
2024年3月5日 · The inherent thermal conductivity of foam structure is set to 30 W/(m·K), while the substance filling the voids, air, demonstrated a thermal conductivity of 0.0257 W/(m·K). The thermal conductivity of foam structures is calculated with a temperature gradient set between the two boundary temperatures of 19℃ and 21℃.
To expand the strategy to the middle layer, we replaced the original polymer sheets with ultra-thin high performance foam sheets due to their low thermal conductivity and shock absorption feature. Consequently, the low thermal conductivity enhanced the Peltier temperature dierence, and the shock absorption feature suppressed the bottom
Thermal Insulation Materials: Graphene‐Based Ultralight ...
2021年1月27日 · Through the close-packed integration of thin microbubbles of graphene, entirely non-directional and closed cellular structures (CCS) are created. These isotropic CCS foams exhibit extremely low thermal conductivity (5.75 mW m −1 K −1) thanks to the efficient suppression of solid and gas conduction in heat transport.
Sticky thermoelectric materials collaborate with ultra-thin high ...
2023年8月16日 · To expand the strategy to the middle layer, we replaced the original polymer sheets with ultra-thin high performance foam sheets due to their low thermal conductivity and shock absorption feature.