Synthesis and Effect of Lattice Strain on the Debye-Waller Factors of Zinc Nanoparticles

Endla Purushotham

doi:10.11648/j.mc.20190701.12

Abstract

Zn nanopowder was prepared by high-energy ball milling has been investigated. Zn powders were ball milled in an argon inert atmosphere. The milled powders were characterized by X-ray diffraction and scanning electron microscopy measurements. Lattice strains in Zn powders produced by milling have been analyzed by X-ray powder diffraction. The lattice strain () and Debye-Waller factor (B) are determined from the half-widths and integrated intensities of the Bragg reflections. Debye-Waller factor is found to increase with the lattice strain. From the correlation between the strain and effective Debye-Waller factors have been estimated for Zn. The variation of energy of vacancy formation as a function of lattice strain has been studied.

Highlights

Synthesis of nanomaterials are important for further miniaturization of electric devices, solar cells to enhance efficiency of heat engines, as chemical catalysts [1, 4]
It is interesting to study the effect of particle size and lattice strains on the Debye-Waller factors of these metals
Gopi Krishna and Sirdeshmukh [10] studied the effect of lattice strains on the Debye-Waller factor of ytterbium metal

Summary

Introduction

Synthesis of nanomaterials are important for further miniaturization of electric devices, solar cells to enhance efficiency of heat engines, as chemical catalysts [1, 4]. It is interesting to study the effect of particle size and lattice strains on the Debye-Waller factors of these metals. Gopi Krishna and Sirdeshmukh [10] studied the effect of lattice strains on the Debye-Waller factor of ytterbium metal. Gopi Krishna et al [11] studied the effect of lattice strains on the Debye-Waller factor of Mg, Zn and Cd for slow grinding in an agate mortar. In the present investigation the results of a systematic study of the effect of particle size and lattice strains on the Debye-Waller factors of hexagonal Zn metal powder is reported using ball mill. These results are being reported for the first time

Experimental

Analysis of Data

Results and Discussion

Conclusion