Crystal Chemical Characterisation of Red Beryl by ‘Standardless’ Laser‐Induced Breakdown Spectroscopy and Single‐Crystal Refinement by X‐Ray Diffraction: An Example of Validation of an Innovative Method for the Chemical Analysis of Minerals

2020 ◽  
Vol 44 (4) ◽  
pp. 685-693
Author(s):  
Gioacchino Tempesta ◽  
Ferdinando Bosi ◽  
Giovanna Agrosì
Keyword(s):  
Chemical Analysis ◽  
Single Crystal ◽  
Laser Induced Breakdown Spectroscopy ◽  
Crystal Chemical ◽  
X Ray Diffraction ◽  
X Ray ◽  
Breakdown Spectroscopy ◽  
Innovative Method ◽  
Laser Induced Breakdown

A study of underwater stand-off laser-induced breakdown spectroscopy for chemical analysis of objects in the deep ocean

2015 ◽  
Vol 30 (5) ◽  
pp. 1050-1056 ◽  
Author(s):  
F. J. Fortes ◽  
S. Guirado ◽  
A. Metzinger ◽  
J. J. Laserna
Keyword(s):  
Chemical Analysis ◽  
Deep Ocean ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Submerged Objects ◽  
First Time

In this work, we demonstrate for the first time the feasibility of stand-off laser induced breakdown spectroscopy (ST-LIBS) for the analysis of distant submerged objects.

Laser-induced breakdown spectroscopy (LIBS) applications in the chemical analysis of waste electrical and electronic equipment (WEEE)

2018 ◽  
Vol 108 ◽  
pp. 65-73 ◽  
Author(s):  
Vinícius Câmara Costa ◽  
Jeyne Pricylla Castro ◽  
Daniel Fernandes Andrade ◽  
Diego Victor Babos ◽  
José Augusto Garcia ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Electronic Equipment ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Libs Applications

scholarly journals A non-calorimetric approach for investigating the moisture-induced ageing of a pyrotechnic delay material using spectroscopies

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ji-Hoon Ryu ◽  
Jun-Ho Yang ◽  
Jack J. Yoh
Keyword(s):  
Photoelectron Spectroscopy ◽  
Heat Of Reaction ◽  
X Ray Diffraction ◽  
Calorimetric Analysis ◽  
X Ray ◽  
Breakdown Spectroscopy ◽  
Long Term Storage ◽  
Laser Induced Breakdown ◽  
Metal Fuel ◽  
Physical Changes

Abstract The degradation of thermal properties due to ageing such as burning rate and exothermic heat release are unsolved issues faced during a long-term storage of the pyrotechnic substances. Accordingly, we employed various non-calorimetric methods to investigate the thermal performance of pyrotechnic delay, which is exposed to various moisture-rich conditions at extended durations. The chemical and physical changes in the compositions of a pyrotechnic delay comprised of metal fuel (Zr-Ni alloy) and oxidants (KClO4, BaCrO4) are analysed for four different relative humidity levels using X-ray photoelectron spectroscopy, X-ray diffraction, scanning electron microscope and laser-induced breakdown spectroscopy. The calculations using the NASA Chemical Equilibrium with Applications (CEA) software indicated that the heat of reaction for the components stored under the moisture-rich conditions is reduced by more than 50%. Unlike the conventional calorimetric analysis, the present non-calorimetric approach provided the compositional changes as well as the cause and effect of the relevant ageing process of pyrotechnic delay.

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