Structural Analysis of Nanomaterials
Structural Analysis of Nanomaterials. Instructor: Prof. Kaushik Pal, Department of Mechanical and Industrial Engineering, IIT Roorkee. Structural analysis of nanomaterials is an important part of Materials Science and Nanoscience and Nanotechnology which deals with the study of crystal structure of materials and their defects. It is a prerequisite for the understanding of properties of nanomaterials to have a detailed knowledge of the structure from the atomic/molecular (local) level to the crystal structure and to the microstructure (mesoscopic scale and defect structure). The primary goal of structural analysis of nanomaterials is aiming at both investigating the structure-property relationship and discovering new properties, in order to achieve relevant improvements in current state-of-the art materials. (from nptel.ac.in)
| Lecture 02 - Structure of Materials |
In this lecture, Crystal structures of different materials like metallic, ceramic and polymers have been discussed. Most common metallic crystal structures generally found in around 90% of metals are BCC, FCC, and HCP. Ceramic crystal structures are based on charge neutrality and cation-anion radii ratios. Interatomic bonding in ceramics is ionic/covalent and they have mainly three types of crystal structures i.e. AX type, AmXp type, and AmBnXp type. In polymer structures, polymer crystallinity provides information about crystalline region in the polymer.
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