Laser-induced shockwave crystallization of nitrates

Watheq Al-Basheer*, Yusron Darojat, Khaled Gasmi, Abdulaziz Aljalal

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

High-intensity nanosecond Nd:YAG laser pulses were used to induce crystallization in saturated solutions of the nitrate salts; sodium nitrate (NaNO3), potassium nitrate (KNO3) and calcium nitrate [Ca(NO3)2] to produce small micro-meter in size crystals. The crystallization of nitrate salts has been specifically chosen to study as these salts have tremendous applications over a wide spectrum of industries such as food, agriculture, dyes, and solar cells production. The induced crystallization in the nitrate salts solutions was mainly triggered by shock waves produced in the solution by directly focusing the laser pulses of 80 mJ pulse energy and 532 nm wavelength into nitrate salts solutions for a period of time ranging from 1 to 15 minutes. The yielded small crystals were characterized using different techniques, namely; x-ray diffraction (XRD), polarized light microscopy (PLM) as well as scanning electron microscope (SEM). A comparison has been drawn between crystals formed conventionally without photochemical intervention versus crystals formed by laser-induced shock wave crystallization mechanism. Finally, the grown crystals size and size distribution were related to laser irradiation time and energy in the three solutions.

Original languageEnglish
Title of host publicationNonlinear Optics and Applications XI
EditorsMario Bertolotti, Alexei M. Zheltikov
PublisherSPIE
ISBN (Electronic)9781510627185
DOIs
StatePublished - 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11026
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Bibliographical note

Publisher Copyright:
© 2019 SPIE. Downloading of the abstract is permitted for personal use only.

Keywords

  • Laser-induced shockwave crystallization
  • Nitrates
  • Scanning electron microscope

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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