Transmission Electron Microscopy of Nanomaterials

Eskandari, Mohammad Jafari; Gostariani, Reza; Asadabad, Mohsen Asadi

doi:10.5772/intechopen.92212

Cited by 7 publications

(3 citation statements)

References 26 publications

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“…The study and investigation of nanomaterials and nanostructure is needed to discover the properties of nanostructured materials, for achieving this purpose, the efficient characterization instruments were used. TEM has evolved to become an indispensable device in the field of nanotechnology due to its high capabilities in providing structural and chemical information of nanomaterials from length scales to atomic dimensions, which provides the opportunity to understand the properties of nanomaterials and manipulate their behavior [39,40]. A high-resolution transmission electron microscope (HR-TEM, JEM-1230, Japan) operated at 120 kV was used in this study to investigate the studied nanomaterials and nanostructures.…”

Section: 163transmission Electron Microscope (Tem)mentioning

confidence: 99%

Enhancing the performance of SILRES® BS OH 100 as a consolidant of archaeological limestone using nano-hydroxyapatite

Adam

El-Shafey²,

Mohamed³

2023

Egypt. J. Chem.

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This study aims to evaluate the effectiveness of nanohydroxyapatite as a consolidating material for limestone monuments when dispersed in the SILRES ® BS OH 100, compared to the polymer in individual form. The current study was applied to one of the stone artifacts displayed at the Obelisk Open Air Museum in El-Matareya, Cairo. Treated samples were subjected to accelerated aging by moisture, temperature and salts to evaluate the stability of the consolidants. Nanohydroxyapatite/ polymer nanocomposite was prepared using in situ emulsion polymerization system. TEM, SEM-EDX, PLM, XRD, colorimetric measurements, water contact angle, porosity, capillary water absorption measurements and compressive strength tests were used to evaluate the consolidants efficiency. The results of thin sections revealed that the studied limestone samples were very fine-grained (micrite) containing microfossils. XRD analysis proved that the archaeological limestone consists mainly of calcite with a small percentage of gypsum, while SEM examination showed the weakness and high porosity ratio of the archaeological limestone samples. However, SEM investigation proved that the samples treated with HAP/ polymer nanocomposite have a homogeneous coverage, and the consolidant was able to fill pores and provide good consolidation. Moreover, the physical and mechanical properties of studied limestone samples were significantly improved as a result of the use of HAP/ polymer nanocomposite after treatment and aging.

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Section: 163transmission Electron Microscope (Tem)mentioning

confidence: 99%

Enhancing the performance of SILRES® BS OH 100 as a consolidant of archaeological limestone using nano-hydroxyapatite

Adam

El-Shafey²,

Mohamed³

2023

Egypt. J. Chem.

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“…It uses a beam of very-high-energy electrons transmitted by a projector through a slide to examine the sample. Thus, the structure on the slide affects the light that passes through it, generating the desired images [ 94 , 104 ].…”

Section: Characterization Of Polymer Nanocomposites For Aerospace Ind...mentioning

confidence: 99%

Recent Trends in Magnetic Polymer Nanocomposites for Aerospace Applications: A Review

et al. 2022

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Polymers have had an enormous impact on science and technology, and their interest relating to the development of new macromolecular materials has exponentially increased. Polymer nanocomposites, materials based on a polymeric matrix covalently coupled to reinforcement, display properties of both components. In the aerospace industry, polymer nanocomposites are attractive due to their promising characteristics, among which lightness, mechanical and thermal resistance, radiation and corrosion resistance, and conductive and magnetic properties stand out. The use of them, instead of metal-based materials, has allowed the optimization of design processes and applications in order to provide safer, faster, and eventually cheaper transportation in the future. This comparative review collects the most relevant and prominent advances in the development of polymer nanocomposites with aerospace applications starting from basic aspects such as the definition of polymer nanocomposite to more specialized details such as synthesis, characterization, and applications, in addition to proposing new research branches related to this topic.

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“…Upon image acquisition, characteristics such as particle size, grain size, lattice type (related back to the material being investigated), morphological information, crystallographic details, chemical composition, phase-type, and distribution can be observed. [115][116][117] To further characterize a specimen, elemental composition can be assessed with energy-dispersive X-ray spectroscopy (EDS). Conveniently, TEMs are fitted with EDS capabilities, utilizing the already existing electron beam in analysis of near-surface elements of the sample.…”

Section: Xylenol Orange Testmentioning

confidence: 99%

Development and characterization of aptamer-conjugated imaging tools for diagnostic applications

Koudrina¹

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Transmission Electron Microscopy of Nanomaterials

Cited by 7 publications

References 26 publications

Enhancing the performance of SILRES® BS OH 100 as a consolidant of archaeological limestone using nano-hydroxyapatite

Enhancing the performance of SILRES® BS OH 100 as a consolidant of archaeological limestone using nano-hydroxyapatite

Recent Trends in Magnetic Polymer Nanocomposites for Aerospace Applications: A Review

Development and characterization of aptamer-conjugated imaging tools for diagnostic applications

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