Nanostructures and Nanomaterials: Characterization and Properties
Nanostructures and Nanomaterials: Characterization and Properties. Instructors: Prof. Anandh Subramaniam and Prof. Kantesh Balani, Department of Materials Science and Engineering, IIT Kanpur. This course will provide an overview of nanostructures evincing their fascinating properties (mechanical, optical, electromagnetic, chemical, and biological) unseen otherwise. The hierarchical development from nano to macro length scale, and its adoption in nature (biomimicking) will also be discussed. Understanding the change in crystal structure and defects therein as one goes from bulk to nano length scale will be utilized to construct structure-mechanism-property-performance maps. Thermodynamics resulting from the size effects at nano-length scales will also be considered. Structural, phase, microstructural and mechanical characterization techniques will be dealt in detail.
(from nptel.ac.in)
Lecture 18 - Superplasticity, Creep, Testing of Nanostructures and Nanomaterials
Basics: Superplasticity, Creep (mechanisms of creep); Testing of nanostructures and nanomaterials: How to synthesize bulk samples which can be tested easily; Grain boundaries in nanocrystals; Intergranular glassy films; What kind of mechanical behaviour should we expect in nanomaterials; Deformation of nanomaterials: Grain size and strength (Hall-Petch relation and the inverse Hall-Petch effect).