Micromechanical Characterization of Diatom Frustules of Multiple Origin
The siliceous structure that protects diatoms, called frustule, is the main component of diatom sedimentary soils. These particles’ physical and mechanical characteristics are challenging, given their geometric conditions of only a few microns. For this evaluation, specialized tools must be used, su...
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2025-01-01
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| author | Daniel Zuluaga-Astudillo Juan Carlos Ruge Bernardo Caicedo-Hormaza |
| author_facet | Daniel Zuluaga-Astudillo Juan Carlos Ruge Bernardo Caicedo-Hormaza |
| author_sort | Daniel Zuluaga-Astudillo |
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| description | The siliceous structure that protects diatoms, called frustule, is the main component of diatom sedimentary soils. These particles’ physical and mechanical characteristics are challenging, given their geometric conditions of only a few microns. For this evaluation, specialized tools must be used, such as the Scanning Electron Microscope (SEM), the Atomic Force Microscope (AFM) and X-ray dispersion (XRD), among others. The bibliographic references show significant variability in the “load-deformation” behavior in frustules, diatoms or their organic components. Technical background information usually presents information on a single type of species. This research demonstrated the characterization and micromechanical evaluation of frustules of three morphologically distinguishable species of diatoms (Colombian, Mexican and Peruvian origin). The results showed similarities in the chemical composition of the three samples. The displacement records are variable depending on the species for the same load range. The location of the load application points by AFM on the different types of frustules is presented. The most significant deformation in the Mexican species and the regularity in the results of the Peruvian species stand out. Young’s moduli were also calculated by applying the Hertz Model, which had the highest values in the Colombian sample. |
| format | Article |
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| institution | Kabale University |
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| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-95091d9f9b0a4efaa4cb58866e1f4c1d2025-01-24T13:20:41ZengMDPI AGApplied Sciences2076-34172025-01-0115274910.3390/app15020749Micromechanical Characterization of Diatom Frustules of Multiple OriginDaniel Zuluaga-Astudillo0Juan Carlos Ruge1Bernardo Caicedo-Hormaza2Programa de Diseño y Construcción de Vías y Aeropistas, Escuela de Ingenieros Militares, Ejército de Colombia, Bogotá 111611, ColombiaPrograma de Doctorado en Ingeniería, Universidad Militar Nueva Granada, Bogotá 110111, ColombiaDepartamento de Ingeniería Civil y Ambiental, Universidad de los Andes, Bogotá 110311, ColombiaThe siliceous structure that protects diatoms, called frustule, is the main component of diatom sedimentary soils. These particles’ physical and mechanical characteristics are challenging, given their geometric conditions of only a few microns. For this evaluation, specialized tools must be used, such as the Scanning Electron Microscope (SEM), the Atomic Force Microscope (AFM) and X-ray dispersion (XRD), among others. The bibliographic references show significant variability in the “load-deformation” behavior in frustules, diatoms or their organic components. Technical background information usually presents information on a single type of species. This research demonstrated the characterization and micromechanical evaluation of frustules of three morphologically distinguishable species of diatoms (Colombian, Mexican and Peruvian origin). The results showed similarities in the chemical composition of the three samples. The displacement records are variable depending on the species for the same load range. The location of the load application points by AFM on the different types of frustules is presented. The most significant deformation in the Mexican species and the regularity in the results of the Peruvian species stand out. Young’s moduli were also calculated by applying the Hertz Model, which had the highest values in the Colombian sample.https://www.mdpi.com/2076-3417/15/2/749diatomaceous soilfrustuleatomic force microscopyforce-displacement curves |
| spellingShingle | Daniel Zuluaga-Astudillo Juan Carlos Ruge Bernardo Caicedo-Hormaza Micromechanical Characterization of Diatom Frustules of Multiple Origin Applied Sciences diatomaceous soil frustule atomic force microscopy force-displacement curves |
| title | Micromechanical Characterization of Diatom Frustules of Multiple Origin |
| title_full | Micromechanical Characterization of Diatom Frustules of Multiple Origin |
| title_fullStr | Micromechanical Characterization of Diatom Frustules of Multiple Origin |
| title_full_unstemmed | Micromechanical Characterization of Diatom Frustules of Multiple Origin |
| title_short | Micromechanical Characterization of Diatom Frustules of Multiple Origin |
| title_sort | micromechanical characterization of diatom frustules of multiple origin |
| topic | diatomaceous soil frustule atomic force microscopy force-displacement curves |
| url | https://www.mdpi.com/2076-3417/15/2/749 |
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