What is Nano Material?? (Structure to Mutability)

1 خرداد 1403 - خواندن 3 دقیقه - 19 بازدید



Note: In general,  nano materials  can be defined as materials that have at least one external dimension with a size of 1-100 nanometers.

Nano Material can be defined   as the particle size of at least half of the particles in the number size distribution must be 100 nm or less. Nanomaterials can occur naturally, be created as byproducts of combustion reactions, or be purposefully produced through engineering to perform a specific function.  These materials can have different physical and chemical properties from their bulk or original natural samples.




In nanoscience, the structure of materials determines the relationship between atoms, ions and molecules that make up those materials. To understand the structure of materials, one must first understand the type of connections between atoms and ionsChemical bonds determine how atoms and ions are connected. Therefore, the difference between different types of connections can be seen in the characteristics of these links. For example, in table salt, due to the presence of ionic bonds that lead to the confinement of electrons, (  conductivity property) is not observed, because the electrons, which carry and transfer electric charge, cannot move due to confinement and have nothing to transfer. There will be no electric charge in the material. On the other hand, in metals, such as copper, due to the presence of a metallic bond that  frees electrons and enables the mobility of electrons, one can expect conductivity properties. Because free electrons enable the transfer of electric charge along the material. Knowing the type of atomic bonds can help to understand the behavior and properties of materials. Regarding the microstructures in nanosciences, it may be thought that the materials that are seen in the form of mass around are created from the expansion of the primary structural order. In  other words, it may be thought that bulk material is an expanded form of the primary structure and therefore  will have all the properties and behavior of the primary structure. This perception is different from behavioral observations of substances.


Conclusion :
In general,  nano materials  can be defined as materials that have at least one external dimension with a size of 1-100 nm.


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