Correlation between Microstructure and Exothermic Reaction Kinetics of Al-CuO Thermite Nanocomposite Powders Fabricated by Cryomilling

• Autorzy: Oh Minseok , Kim Kwanil , Ahn Byungmin

Identyfikatory

DOI

10.24425/amm.2019.129475

• Języki publikacji: EN

Abstrakty

EN

Al-CuO is a thermite material exhibiting the exothermic reaction only when aluminum melts. For wide spread of its applica-tion, the reaction temperature needs to be reduced in addition to the enhancement of total reaction energy. In the present study, a thermite nanocomposite with a large contact area between Al and CuO was fabricated in order to lower the exothermic reaction temperature and to improve the reactivity. A cryomilling process was performed to achieve the nanostructure, and the effect of composition on the microstructure and its reactivity was studied in detail. The microstructure was characterized using SEM and XRD, and the thermal property was analyzed using DSC. The results show that as the molar ratio between Al and CuO varies, the fraction of uniform nanocomposite structure was changed affecting the exothermic reaction characteristics.

Słowa kluczowe

EN

Al-CuO; thermite; nanocomposite; cryomilling; high energy density materials

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 3
• Strony: 931--934
• Opis fizyczny: Bibliogr. 12 poz., fot., rys.

Twórcy

autor

Oh Minseok

• Ajou University, Department of Materials Science and Engineering and Department of Energy Systems Research, Suwon, Gyeonggi, 16499, Korea

autor

Kim Kwanil

• Ajou University, Department of Materials Science and Engineering and Department of Energy Systems Research, Suwon, Gyeonggi, 16499, Korea

autor

Ahn Byungmin

• Ajou University, Department of Materials Science and Engineering and Department of Energy Systems Research, Suwon, Gyeonggi, 16499, Korea

Bibliografia

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Uwagi

EN

1. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2018R1D1A1B07044481).

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).