Spectral BRDF measurements of metallic samples for laser processing applications

Vitali, Luigi; Fustinoni, Damiano; Gramazio, Pasqualino; Niro, Alfonso

doi:10.1088/1742-6596/655/1/012064

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2017

2024

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Cited by 5 publications

(2 citation statements)

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“…The characteristics of the experimental setup and its use in a similar application is detailed elsewhere [21]. In detail, hemispherical reflectance spectra have been acquired in a wavelength range from 380 nm to 780 nm, in steps of 10 nm.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Optical characterization of laser coloured titanium under different processing atmospheres

Khafaji

Demir

Vitali

et al. 2017

Surface and Coatings Technology

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Section: Accepted Manuscriptmentioning

confidence: 99%

Optical characterization of laser coloured titanium under different processing atmospheres

Khafaji

Demir

Vitali

et al. 2017

Surface and Coatings Technology

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“…Others, as Jafari [4], focused only on the porous structure which can be used as wick. The ThermALab and Metamat groups at Politecnico di Milano have carried out research to find suitable porous structures to be used as wick in AM-based AlSi10Mg HP [5]. While a sinter-like structure results in a low pore size, its permeability, as also shown by Gotoh et al [6] is a severely limiting factor in the operation against gravity.…”

Section: Introductionmentioning

confidence: 99%

Thermal performance against gravity of an AlSi10 AM heat pipe with a diamond lattice structure

Vitali,

Menini,

Guilizzoni

et al. 2024

J. Phys.: Conf. Ser.

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Metal Additive Manufacturing has gained momentum as a viable production technique for specialized heat transfer devices, in particular for industrial sectors characterized by small production numbers associated with high-performance requirements. Within the space industry, ESA is leading and funding several applied research programs to explore the possibility to employ AM for building electronic boxes with embedded heat pipes, in order to reduce manufacturing post-processing steps and contact thermal resistances. In the context of tender 1-10238, the project “Heat Pipe Solutions for High Power Systems” (HPS2) has developed and tested lattice-based heat pipes, that are intended to be integrated in electronic modules. In this paper, the heat transfer performances as function of input power and tilt angle against gravity of a 150 mm long heat pipe with a 20 mm evaporator section and a 40 mm condenser section are presented and compared with the results of the models of performance limits, based on the measured properties of the lattice.

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A modified version of BRDF model based on Kubelka-Munk theory for coating materials

Yang

et al. 2019

Optik

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Spectral BRDF measurements of metallic samples for laser processing applications

Cited by 5 publications

References 6 publications

Optical characterization of laser coloured titanium under different processing atmospheres

Optical characterization of laser coloured titanium under different processing atmospheres

Thermal performance against gravity of an AlSi10 AM heat pipe with a diamond lattice structure

A modified version of BRDF model based on Kubelka-Munk theory for coating materials

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