A universal theoretical model for thermal integration in materials during repetitive pulsed laser-based processing

Li, C.H.; Dao-cheng, Luan; Zhu, Qihua; Zheng, Wanguo

doi:10.1016/j.ijleo.2018.05.061

Cited by 7 publications

(2 citation statements)

References 37 publications

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“…As mentioned in the first section, new materials having large thermal conductivity and involving metals include metallic nanoporous materials, nanofluids containing metallic nanoparticles, metal foams and materials including both nanomaterials and nanofoams. Optimizing laser-based processing also requires the thermal conductivity of metals [15]. Main applications of the abovementioned materials and laser-based processing are listed in [7,15,16].…”

Section: Potential Applications Of the Present Approachmentioning

confidence: 99%

“…Optimizing laser-based processing also requires the thermal conductivity of metals [15]. Main applications of the abovementioned materials and laser-based processing are listed in [7,15,16]. The thermal conductivity formula, Equation (22) (Equation (2) with ve = v F ), can be used for metals of electron valence equal to one like copper as a very good approximation as mentioned above, and for metals of higher electron valence like aluminium as a fairly good approximation.…”

Section: Potential Applications Of the Present Approachmentioning

confidence: 99%

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Formulation of heat conduction and thermal conductivity of metals

Chebbi

2019

Open Physics

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The well-known low-pressure monatomic gas thermal conductivity expression is based on the Maxwell-Boltzmann velocity distribution and involves the mean particle velocity, the gas heat capacity at constant volume and the particle mean free path. The extension of the formula to a free electron Fermi gas, using the Fermi velocity along with the Sommerfeld electronic heat capacity, was demonstrated in the literature using the Boltzmann transport equation. A different formulation of heat conduction in sufficiently pure metals, yielding the same formula for the thermal conductivity, is provided in the present investigation using the free electron Fermi gas energy distribution with the thermal conductivity determined from the net heat transfer occurring due to random motions of the free electrons in the presence of temperature gradient. Potential applications of this approach include extension of the present kinetic model incorporating quantum effects to cases in which electron scattering occurs such as in nanowires and hollow nanowires.

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