Question 5 (Textile Engineering & Fibre Science)
Surface features of a fibre can be obtained by
|(A)||Transmission electron microscope|
|(B)||Scanning electron microscope|
|(C)||Small angle X-ray diffractometer|
|(D)||Sonic modulus tester|
Answer / Solution
Frequently Asked Questions | FAQs
What is a scanning electron microscope used for?
A scanning electron microscope (SEM) is a type of microscope that uses a focused beam of electrons to produce high-resolution images of the surface of solid samples. SEMs are widely used in various fields for a wide range of applications, including:
Material Science: SEMs are extensively used in material science for surface characterization and analysis of materials, including metals, ceramics, polymers, composites, and semiconductors. SEM can provide detailed information about the surface topography, morphology, and microstructure of materials, allowing for the investigation of material properties, defects, and failure mechanisms.
Nanotechnology: SEMs are crucial tools in nanotechnology research and development, as they can visualize and analyze nano-scale structures and particles. SEMs can provide information on the size, shape, and distribution of nanoparticles, nanocomposites, and nanostructured materials, which are essential for understanding and optimizing nanoscale properties and behaviors.
Biology and Life Sciences: SEMs are used in various biological and life science applications, such as imaging of cells, tissues, and biological specimens. SEMs can provide high-resolution images of biological samples, allowing for the visualization of cellular and subcellular structures, surface features, and interactions between biological materials.
Geology and Earth Sciences: SEMs are used in geology and earth sciences for the study of rocks, minerals, soils, and geological formations. SEMs can reveal detailed information about the surface features, mineralogical composition, and microstructures of geological samples, which are essential for geological analysis and understanding of earth processes.
Forensics and Criminalistics: SEMs are used in forensic science for the examination of trace evidence, such as fibers, hairs, fingerprints, and gunshot residues. SEMs can provide high-resolution images of micro-scale features and structures, aiding in the identification and characterization of forensic evidence.
Electronics and Semiconductor Industry: SEMs are used in the electronics and semiconductor industry for the inspection, analysis, and characterization of microelectronic devices, integrated circuits, and other semiconductor materials. SEMs can provide detailed information about the quality, structure, and performance of semiconductor components, helping in process development, failure analysis, and quality control.
Archaeology, Art Conservation, and Cultural Heritage: SEMs are used in the field of archaeology, art conservation, and cultural heritage preservation for the analysis and characterization of ancient artifacts, artworks, and historical materials. SEMs can provide valuable information about the surface condition, composition, and degradation of cultural objects, aiding in their preservation and conservation.
These are just a few examples of the many applications of scanning electron microscopes (SEMs). SEMs are versatile tools used in various scientific, industrial, and academic fields for detailed imaging, analysis, and characterization of a wide range of samples and materials at the micro and nanoscale level.