S Kamal

  List of precipitation hardened alloys and shape of precipitate S. No Alloy Precipitate Shape Reason for the shape Reference 1 Inconel 718 Delta phase Plate To reduce strain energy (caused due to lattice miss fit, the b direction length is different from the matrix) it grows in plate like structure because Mahadevan, S., Nalawade, S., Singh, J. B., Verma, A., Paul, B., & Ramaswamy, K. (2010). Evolution of δ phase microstructure in alloy 718. 7th International Symposium on Superalloy 718 and Derivatives 2010 , 2 , 737–750. https://doi.org/10.1002/9781118495223.ch57   2 Al–43%Zn-2%Cu Zn Ellipsoidal Due coherent interface between Zn (0002) and Al (111) Han, S. Z., Choi, E. A., Park, H. W., Lim, S. H., Lee, J., Ahn, J. H., Hwang, N. M., & Kim, K. (2017). Simultaneous increase in streng...

  Free energy compositional diagram for eutectic system                                             Figure 1: Eutectic Phase diagram at atmospheric pressure.                                             Figure 2: Free energy compositional diagram at Temperature T1.                                                 Figure 3: Free energy compositional diagram at Temperature T2                                     Figure 4: Free energy compositional diagram at Temperature T3.                         ...

 

     Role of Microstructure on Optical Properties                                               Key words- Anti reflective surface (ARS), Bioinspired, Optical properties. I. INTRODUCTION The Optical properties of a material can be defined as how the material interacts with light but strictly speaking it is the response of a material to the electromagnetic radiation. The major optical properties are Refraction, Polarization, Reflection, Absorption etc.      With the advent of the silicon age the demand for the materials which shows excellent optical properties are needed which helps in increasing the efficiency of data transfer (optical fibers), Energy production (Solar cells), etc. This paper explains the recent development in the materials microstructure leading to a humongous changes in optical properties, it also discuss how this micr...