Mechanical effects of ion-implanted gold nanoparticles on the surface properties of silica glass
Por:
Pérez-Higareda J.R., Torres J.A., Leyva-Porras C., Solís-Canto O.O., Torres-Torres C., Oliver A., Torres-Torres D.
Publicada:
1 ene 2025
Ahead of Print:
1 jun 2025
Resumen:
Silica glass (SG) is a highly versatile material used in optics, electronics, construction, and medicine due to its transparency and mechanical properties. However, enhancing its performance poses scientific challenges, especially in reinforcing it while preserving these properties and understanding its deformation under stress. This study investigates the effect of gold nanoparticles (AuNPs) on the mechanical response of SG material. AuNPs were nucleated into high-purity SG using a 3MV Tandem Accelerator Pelletron, followed by thermal annealing at 600°C in an H2 + N2 atmosphere. High-resolution transmission electron microscopy (HRTEM) revealed a Gaussian distribution of AuNPs at a depth of ~450 nm. Nanoindentation tests indicated minor variations in hardness (1.5%) and reduced elastic modulus (4.4%) with AuNP incorporation. Scratch tests demonstrated that the mechanical integrity of the AuNPs/SG sample was preserved when deformation remained below the determined fracture load of SG, although it exhibited a slightly higher coefficient of friction. Finite element analysis provided insights into the strain behavior within the AuNP zone, confirming how AuNPs distribute stress within the SG matrix. © 2025 The American Ceramic Society and Wiley Periodicals LLC.
Filiaciones:
Pérez-Higareda J.R.:
Centro de Investigación en Materiales Avanzados, S.C. (CIMAV), Subsede Monterrey, Nuevo León, Mexico
Departamento de Ingeniería Mecánica, Tecnológico Nacional de México/Instituto Tecnológico de Oaxaca, Oaxaca, Mexico
Torres J.A.:
Laboratorio de Acústica, Escuela de Laudería, Instituto Nacional de Bellas Artes y Literatura, Querétaro, Mexico
Leyva-Porras C.:
Centro de Investigación en Materiales Avanzados, S.C. (CIMAV), Chihuahua, Mexico
Solís-Canto O.O.:
Centro de Investigación en Materiales Avanzados, S.C. (CIMAV), Chihuahua, Mexico
Torres-Torres C.:
Sección de Estudios de Posgrado e Investigación, Escuela Superior de Ingeniería Mecánica y Eléctrica Unidad Zacatenco, Instituto Politécnico Nacional, Mexico City, Mexico
Oliver A.:
Instituto de Fisica, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico
Torres-Torres D.:
Centro de Investigación en Materiales Avanzados, S.C. (CIMAV), Subsede Monterrey, Nuevo León, Mexico
Bronze, All Open Access; Bronze Open Access
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