We report temperature inferences from time-resolved emission spectra of a micro-sized plasma following laser ablation of an aluminum sample. The laser-induced breakdown event is created with the use of nanosecond pulsed laser radiation. Plasma temperatures are inferred from the aluminum monoxide spectroscopic emissions of the aluminum sample by fitting experimental to theoretically calculated spectra with a nonlinear fitting algorithm. The synthetic spectra used as a comparison for the experimental spectra are generated from accurate line strengths of aluminum monoxide bands. The inferred plasma temperatures are found to be 5315 ± 100 K at 20 μs following breakdown. At later time delays of 45 and 70 μs following breakdown, the plasma temperatures are found to be 4875 ± 95 and 4390 ± 80 K, respectively. Error analysis of the inferred temperatures is performed with the fitting algorithm.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1366/13-07379 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Selective Reduction of Iron in High-Phosphorus Oolitic Ore from the Lisakovsk Deposit.
Materials (Basel)
October 2024
Department of Metallurgy and Materials Science, Karaganda Industrial University, Temirtau 101400, Kazakhstan.
Reduction of iron in high-phosphorus oolitic ore from the Lisakovsk deposit using solid carbon, carbon monoxide, and hydrogen. An X-ray phase analysis was used to determine the phase composition of the samples after reduction roasting. When reduced with carbon monoxide or hydrogen, α-iron appears in the samples, while phosphorus remains in the form of iron, calcium, and aluminum phosphates.
View Article and Find Full Text PDFUnraveling the Nanosheet Zeolite-Catalyzed Combustion of Aluminum Nanoparticles-Doped exo-Tetrahydrodicyclopentadiene (JP-10) Energetic Fuel.
ACS Appl Mater Interfaces
October 2024
Department of Chemistry, University of Hawai'i at Manoa, Honolulu, Hawaii 96822, United States.
Article Synopsis
- * Five types of these zeolites, labeled NSMFI(y) based on their Si/Al ratios, were created with controlled acidity and tested in combustion experiments involving aluminum nanoparticles and a specific fuel.
- * The addition of NSMFI(y) improved ignition delays and burning times significantly, with the variant NSMFI(60) showing the highest combustion efficiency at 80%. This research is aimed at advancing the development of sustainable fuel technologies.
The dimerization of nitrogen monoxide (NO) is highly relevant in homo- and heterogeneous biochemical and environmental redox processes, but a broader understanding is challenged by the endergonic nature of this equilibrium. The present work describes NO-dimerization leveraged by structurally constrained aluminum and metal-ligand cooperativity at the anionic calix[4]pyrrolato aluminate(III). Quantum chemical calculations reveal the driving force for N-N bond formation, while reactivity tests shed light on subsequent redox chemistry and NO decomposition at metal surfaces.
View Article and Find Full Text PDFRealizing the high loading amount of active Cu on AlO to boost its CO catalytic oxidation.
J Colloid Interface Sci
November 2024
School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University, Weifang, Shandong 261061, China. Electronic address:
Catalytic oxidation of carbon monoxide (CO) by Cu/AlO has garnered increasing interest in recent years due to its promising application prospects. Numerous investigations conducted on the Cu/AlO system, but its catalytic performance for CO oxidation is still not as promising as that of precious metal catalysts. Increasing the loading amount of the active Cu on AlO surface is a feasible method for improving its activity.
View Article and Find Full Text PDFInvestigation of the use of aluminum oxide nanoparticle-enhanced waste cooking oil blends in compression ignition engines.
Environ Sci Pollut Res Int
June 2024
Department of Mechanical Engineering, MEA Engineering College, Perinthalmanna, Kerala, 679 325, India.
The sustainable utilization of waste cooking oil (WCO) as an alternative to fossil fuels has gained considerable attention due to its potential for delivering substantial environmental and economic benefits. This research attempts to explore the impact of incorporating aluminum oxide nanoparticles (AONP) into WCO on the emissions, combustion characteristics, and overall performance of a single-cylinder compression ignition (CI) engine. Comparative analyses were conducted against conventional commercial diesel fuel and pure WCO, as well as varying blends of WCO with AONP at 25 ppm, 50 ppm, and 75 ppm concentrations.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!