Mechanical Property Changes 2

Properties in Nanoscale
Category General
Difficulty Level Normal
Audience Level General
Description Have a good knowledge of material structures leads to recognizing material behavior based on its structure. In this course, material structures and properties are elaborated in bulk and nanoscale.
Overview
It is clear that, every atomic structure has its own specific bulk properties. Therefore, being familiar with atomic arrangements, different atomic bonds and different kinds of cubic structures provide a general understanding for recognizing materials and components’ properties. On the other hand, in nanoscales, atomic structures are changed which generates novel properties.
Hence, being familiar with mentioned different parameters in atomic structure makes what happens in nanoscale understandable.

Booklet
Description
 It defines hardness and how it increases with decreasing grain size to a critical amount. Then it defines stress and strain in metals and Young’s modulus. It ends with how decreasing Young’s modulus happens in nanoscale.
Mental Challenge
 Does elasticity change in nanoscale?
Quizzes and Activities

Activity: Research why Young’s modulus changes with size and how. Use images.
Further Reading Sources

1.Characterization of Nanomaterials, Chapter 7

2.Mechanical Properties of Nanoparticles: Basics and Applications