What question did this study set out to answer?

The research aims to improve IR-emission properties through surface nanotexturing techniques.

March 14, 2026Journal of Manufacturing and Materials Processing0 citationsOpen Access

Nanotexturing onto Laser-Microtextured Surface via Nickel Wet-Plating for IR-Emissivity Control

TATatsuhiko Aizawa HNHiroki Nakata TNTakeshi Nasu

Key Points

The research aims to improve IR-emission properties through surface nanotexturing techniques.
Used short-pulse laser machining on copper sheets to create microtextured surfaces.
Applied nickel wet-plating for additional nanotexturing.
Designed and fabricated four different micro/nanotextured specimens.
Measured IR-emissivity using thermographic microscopy.
The nanotextured copper specimen achieved IR-emissivity greater than 0.8.
Measured IR-emissivity over a wavelength range of 2 μm to 14 μm.

Abstract

Short-pulse laser machining was employed to transform the flat copper sheet into a microtextured specimen. This specimen was further nanotextured using the nickel wet-plating to build up the IR (InfraRed)-emission metallic device with fractal-like surface. Four-unit cells were designed and fabricated as a micro-/nanotextured specimen by varying the microtextured unit cell structure. The IR-emissivity of these four specimens was measured using the thermographic microscopy with FT-IR (Fourier Transform InfraRed). The bare copper and nickel-nanotextured copper specimens were utilized as a reference. The micro-/nanotextured copper specimen had higher IR-emissivity than 0.8 in the wide wavelength range from 2 μm to 14 μm.

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