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According to present experimental results it can be concluded that the thermal and electrical conductivity of Sn based alloys depend on the thermal and electrical conductivity of the alloying elements.
The comprehensive properties, especially the electrical conductivity of the designed alloy, were much higher than those of traditional Cu–Ni–Al alloys.
This alloy provides good thermal, as well as electrical, conductivity.
In the case of Inconel 718, the measurements show that the conductivity depends critically on the sample thermal history and the metallurgical condition of the alloy.
This is therefore a useful material when high strength and thermal conductivity are both required.
Results indicated that the thermal conductivity and micro-hardness of the alloy could be significantly improved by aging treatment, and Mg–12Gd alloy exhibited a typical aging hardening response with the increasing aging time.
The results indicate that the thermal conductivity of the alloy is well described by an existing theoretical treatment of high‐temperature lattice thermal conductivity of disordered semiconductor alloys.
The correlation between the coefficients obtained with experimental fits and theoretical models shows a predictable and systematic relationship between alloy composition and the thermal conductivity.
We find that the thermal conductivity of this crystalline alloy has a temperature dependence strikingly similar to those of amorphous solids.

Related Questions

Why is the electronic part larger than the lattice part in metallic compound in thermal conductivity?3 answersThe electronic part is larger than the lattice part in metallic compounds in thermal conductivity due to the strong electron-phonon coupling in these compounds. This is attributed to the larger electron-phonon coupling constant with a high electron density of states within the Fermi window and high phonon frequency in metallic compounds. In contrast, noble metals have weak electron-phonon coupling, resulting in lower electron thermal conductivities. The electron-phonon coupling effect on phonon thermal conductivity is stronger in metallic compounds compared to noble metals. Additionally, the behavior of thermal conductivity at high temperatures in Al-based complex structure alloys is mainly influenced by the electrons in the pseudogap persisting at the Fermi level. These factors contribute to the larger electronic part in metallic compounds compared to the lattice part in thermal conductivity.
What are the mechanisms that contribute to the lattice thermal conductivity of metallic materials?5 answersThe lattice thermal conductivity of metallic materials is mainly influenced by phonon transport, which is the main mechanism of heat transfer in non-metal materials. The lattice dynamics, chemical bonding, and lattice structure play crucial roles in determining the thermal conductivity of materials. The physical approximations and numerical approximations used in theoretical calculations also affect the results. In low-dimensional materials, the covalent character of atomic bonds and the cophonicity metric promote fast motions of cations, leading to a large thermal conductivity. In superlattices, interface scattering, particularly diffuse interface scattering, is the most important mechanism for reducing thermal conductivity. These mechanisms and factors contribute to the understanding of lattice thermal conductivity in metallic materials.
What is the thermal conductivity of silver?5 answersThe thermal conductivity of silver is highly valued for its use in thermally conductive adhesives and nanofluids. Silver nanoflakes prepared through a "top-down" strategy achieved an intrinsic thermal conductivity of 398.2 W m-1 K-1, reaching 93% of the theoretical value. Porous sintered silver, another form of silver used in chip-connection materials, also exhibits high thermal conductivity. Additionally, silver nanoparticles and nanorods have been found to significantly enhance the thermal conductivity of base fluids, with optimal results observed at 2 vol% loading. Surface-treated silver micro-flakes in thermally conductive adhesives achieved an out-of-plane thermal conductivity of 22 W m-1 K-1 at 85 wt% loading. Furthermore, nanofluids containing silver nanoparticles synthesized using algal extract solution showed an increase in thermal conductivity with increasing temperature and particle concentration. Overall, silver demonstrates excellent thermal conductivity properties, making it a valuable material for various applications.
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What is the effect of hBN fillers on the tribological properties of polymer composites?
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5 answers
The incorporation of hexagonal boron nitride (hBN) fillers into polytetrafluoroethylene (PTFE) composites significantly enhances their tribological properties, as evidenced by various research findings. Yuan-Long He et al. demonstrated that adding hBN alongside short carbon fibers and a specific micropowder to PTFE composites improved their mechanical properties, friction coefficient, and wear resistance, with a notable decrease in wear rate observed at certain filler concentrations. Similarly, Yanhong Feng et al. found that hBN, when used with silicon carbide (SiC) fillers in PTFE, not only improved thermal conductivity but also maintained low dielectric constants, suggesting an indirect benefit to tribological performance by enhancing material stability under operational conditions. Chaojie Xie and Kejian Wang's study further supports these findings, showing that hBN fillers, especially when combined with polyimide (PI), significantly reduce the coefficient of friction and wear rate of PTFE composites under dry sliding conditions. This reduction in wear and friction is attributed to the synergistic effect of hBN and PI, improving the dispersion and bonding within the PTFE matrix. Chen Pan et al. explored the thermal aspect, using hBN and aluminum nitride (AlN) as hybrid fillers in PTFE to disrupt hBN platelets' alignment, which indirectly suggests an improvement in tribological performance by enhancing thermal conductivity and reducing material degradation under thermal stress. Moreover, Anand Singh Rathaur et al. demonstrated that hBN fillers, when used in SU-8 composites, significantly improved wear resistance, thermal stability, and mechanical properties, indicating that hBN's benefits extend beyond PTFE composites to other polymer matrices as well. This broad applicability underscores hBN's role in enhancing the tribological performance of polymer composites. In summary, hBN fillers in PTFE composites lead to improved wear resistance, reduced friction coefficients, and enhanced mechanical and thermal properties, contributing to their overall superior tribological performance.
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How temperature affects bleached hair?
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How plastic can affect hollow blocks?
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Plastic can significantly impact hollow blocks by altering their properties and environmental sustainability. Studies have explored incorporating various plastic materials like low-density polyethylene (LDPE), polyvinyl chloride (PVC), polystyrene (PS), and high-density polyethylene (HDPE) into concrete hollow blocks (CHBs). LDPE and HDPE replacements in CHBs have shown mixed effects on compressive strength and bulk density. On the other hand, PVC and PS pellets have demonstrated improved workability and compressive strength in CHBs, with PS showing promising results in enhancing strength. Additionally, plastic blocks made from recycled materials like polystyrene and polyethylene can reduce seismic forces, distribute loads effectively, and enhance structural stability. Incorporating plastic waste in hollow blocks not only repurposes materials but also contributes to reducing CO2 emissions and energy consumption.
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