Thermal reaction characteristics and microstructure evolution of aluminium nano-powder in various mixtures of oxygen and nitrogen atmosphere

Qu, Jiao; Deng, Jun; Luo, Zhen-Min; Xiao, Yang; Shu, Chi‐Min

doi:10.1016/j.psep.2022.11.079

Cited by 17 publications

(2 citation statements)

References 42 publications

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“…The thorough execution of temperature monitoring during the fire-suppression trials was accomplished through the utilization of thermocouples [29,30]. The comprehensive outcomes of this monitoring process are visually represented in Figure 8.…”

Section: Temperature Monitoring and Cooling Ratementioning

confidence: 99%

A Comparative Approach Study on the Thermal and Calorimetric Analysis of Fire-Extinguishing Powders

Huang,

Cao,

2024

Safety

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This study offers a comprehensive evaluation of the effectiveness of expansible graphite (EG) and potassium bicarbonate (KHCO3) in suppressing metal fires, which are known for their high intensity and resistance. Our assessment, utilizing thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM), revealed that compositions of EG–KHCO3 can endure temperatures of up to 350 °C, indicating their thermal resilience. The 3:1 EG–KHCO3 mixture demonstrated exceptional performance in fire suppression tests by extinguishing sodium flames in a mere 20 s, using approximately 50 g of the agent. This highlights a substantial improvement in efficiency. In addition, FTIR analysis identified important gaseous compounds released during decomposition, while XRD and SEM techniques confirmed the advantageous insertion of KHCO3 into the EG matrix, enhancing its resistance to heat and chemical reactions. The mixture with a ratio of 3:1 also demonstrated a higher cooling rate of 2.34 °C/s within the temperature range of 350 to 200 °C. The results emphasize the potential of EG–KHCO3 compositions, specifically in a 3:1 ratio, for efficient fire management by integrating fire suppression, heat resistance, and quick cooling. Subsequent investigations will prioritize the evaluation of these compositions across different circumstances and the assessment of their environmental and industrial viability.

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Section: Temperature Monitoring and Cooling Ratementioning

confidence: 99%

A Comparative Approach Study on the Thermal and Calorimetric Analysis of Fire-Extinguishing Powders

Huang,

Cao,

2024

Safety

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“…The optimal concentration and explosion inhibition effect of a hydrogen explosion suppressor can be studied. By calculating activation energy and other parameters, the key reaction stage of the suppressor can be analyzed from a microscopic viewpoint. − …”

Section: Challenges and Perspectivesmentioning

confidence: 99%

Minireview on the Leakage Ignition and Flame Propagation Characteristics of Hydrogen: Advances and Perspectives

Wang

Zhao

et al. 2023

Energy Fuels

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Hydrogen energy is a clean and efficient type of green energy whose use has been widely promoted. However, because of its physical and chemical characteristics, hydrogen tends to cause fires and explosions under certain conditions, which restricts its widespread application. After briefly describing the danger of high-pressure hydrogen (HPH), this paper summarizes the ignition and flame propagation characteristics of HPH leakage diffusion and describes the influences of various factors, such as leakage location, initial leakage velocity, initial pressure, presence of vents, ignition location, pipe size, and presence of obstacles, on these characteristics. HPH is likely to ignite spontaneously at the moment of leakage, and this ignition involves complex dynamics. Finally, the gap in the current research on HPH is described, and suggestions are provided for future research to promote the safe and efficient use of hydrogen energy.

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Probing the difference in improving the ignition and combustion of micro/nano-sized aluminum powder modified by VitonA

Chen,

Wang,

Wang

et al. 2024

J Mater Sci

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Thermal reaction characteristics and microstructure evolution of aluminium nano-powder in various mixtures of oxygen and nitrogen atmosphere

Cited by 17 publications

References 42 publications

A Comparative Approach Study on the Thermal and Calorimetric Analysis of Fire-Extinguishing Powders

A Comparative Approach Study on the Thermal and Calorimetric Analysis of Fire-Extinguishing Powders

Minireview on the Leakage Ignition and Flame Propagation Characteristics of Hydrogen: Advances and Perspectives

Probing the difference in improving the ignition and combustion of micro/nano-sized aluminum powder modified by VitonA

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