2. Definitions
The prefix nano- (10 –9 ) defines the order of magnitude. We therefore expect to find, for nanomaterials, dimensions of material components on the order of a few 10 –9 m. It is interesting to examine the spatial scales of various “objects” around us, from the infinitely large to the infinitely small: there are nearly 40 orders of magnitude between the size of the Milky Way and that of a quark.
By narrowing the range from the macroscopic scale (our environment) of a few meters to the atomic scale of 10 –10 , we still have 10 orders of magnitude. The macroscopic domain corresponds to the objects we handle. These are made of materials that are themselves composed of phases, grains, films, etc., whose microstructural dimensions range...
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Principles and Synthesis Methods
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