Fabrication and evaluation of gold nanoparticles by ball milling, Hall-Williamson and x-ray diffraction method

Autor: Purushotham Endla, Veerati Radhika
Rok vydání: 2021
Předmět:
Zdroj: Materials Today: Proceedings. 47:4993-4995
ISSN: 2214-7853
DOI: 10.1016/j.matpr.2021.04.451
Popis: The aim of this paper is to use a high-energy ball mill to convert micro-sized Au powder into nano-structured Au powder; it means Au (Gold) NanoParticles (AuNPs) have been fabricated in this present work. The ball milling process took a total of 20 h to complete. First I have taken initial sample 0 h. after every 4 h of milling time period i.e., 4, 8, 12, 16 and 20 h have been calculated, all the values best fit with the previous researcher values. The HWFM and integrated intensities of Bragg reflections are used to measure strain and B value. In Au, the B value increases as the strain also increases. The B values for zero strain were determined using the relationship between strain and the effective B value. The energy of vacancy formation as a function of strain has been investigated.
Databáze: OpenAIRE