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What is the definition of nano materials?
Materials which have structured components with size less than 100 nm at least in one dimension.
What is nano science?
The study and manipulation of materials at atomic, molecular and micro molecular scales, where the properties different from those at bulk scale.
What is the significance of nanoscale?
Many properties of solids depend on the size of the solid, and materials can exhibit different properties at the nanoscale.
What is one nanometer equal to?
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How wide is a single human hair approximately?
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What is the range of the nanoscale?
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Why do materials exhibit different properties at the nanoscale?
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What happens to the properties of materials as they become smaller?
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What is the definition of nano technology?
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What is the origin of the word 'nano'?
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Study Notes
Properties of Nanomaterials
- Nanomaterials have a larger surface area compared to their bulk form, making them more chemically reactive.
- Quantum effects can dominate the behavior of matter at the nanoscale, affecting optical, electrical, and magnetic properties.
- Physical properties of materials are characterized by critical lengths, and nanomaterials can exhibit different properties when their size is smaller than the critical length.
- Nanomaterials can be stronger and tougher than their bulk counterparts, with metals being up to seven times harder and tougher when their grain size is around 10 nanometers.
Fabrication of Nanomaterials
- Nanomaterials can be fabricated using the bottom-up approach, where materials and devices are built from molecular components using principles of molecular recognition.
Applications of EDX
- Classification of materials
- Structural analysis
- Composition investigation
- Failure and defect analysis
- Identification of corrosion and oxidation problems
- Examination of surface morphology
Applications of Nanomaterials
Automotive Industry
- Lightweight construction
- Painting (fillers, base coat, clear coat)
- Catalysts
- Tires (fillers)
- Sensors and coatings for window screens and car bodies
Chemical Industry
- Fillers for paint systems
- Coating systems based on nanocomposites
- Impregnation of papers
- Switchable adhesives
- Magnetic fluids
Engineering
- Wear protection for tools and machines
- Lubricant-free bearings
Electronic Industry
- Data memory
- Displays
- Laser diodes
- Glass fibers
- Optical switches
- Filters (IR-blocking)
- Conductive and antistatic coatings
Construction
- Construction materials
- Thermal insulation
- Flame retardants
- Surface-functionalized building materials for wood, floors, stone, facades, tiles, and roof tiles
Important Terms
- Nano Materials: Materials with structured components with size less than 100 nm in at least one dimension.
- Nano Science: Study and manipulation of materials at atomic, molecular, and micro-molecular scales.
- Nano Technology: Design, characterization, production, and application of structures, devices, and systems by controlling shape and size at the nanometer scale.
- Nanoscale: The size range between 100 nm and 0.2 nm, which is a borderland between the quantum world and the macro world.
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Description
This quiz covers the unique properties of nanomaterials, including their increased surface area and reactivity, and how quantum effects impact their behavior at the nanoscale.
