The Effect of Al Particles Size on the Thermal Behavior and Kinetics of Al-MnO2 Thermite System
المؤلفون المشاركون
Yao, Miao
Ding, Wen
Wu, Jia-xiang
Song, Jia-xing
Guo, Tao
Yang, Li
Zhang, Xiao-nan
Yu, Zhong-shen
Zhang, Jun
Fang, Xiang
المصدر
Advances in Materials Science and Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-05-07
دولة النشر
مصر
عدد الصفحات
11
الملخص EN
Micron-MnO2 powder has unique thermal decomposition process compared with other metal oxides, and the different characteristics of components in thermite could affect the thermal performance of the whole system directly.
In this work, the Al powder with different three particle sizes was combined with micron-MnO2 to prepare the Al-MnO2 thermite system, and the effect of Al powder particle sizes on the whole thermal behavior was studied.
Firstly, the thermal decomposition process of micron-MnO2 and purity of Al powder are tested by TG-DSC.
By using ultrasonic dispersion method, the fuel-rich thermite samples were prepared and characterized by SEM and TG-DSC at different heating rates.
The Kissinger method was also employed to calculate the activation energy for the first exothermic peak.
It was found that the thermal decomposition process of MnO2 in the thermite system can be significantly disturbed by different Al particles size.
In other words, the effect of Al particle sizes on the thermite can be magnified due to the unique decomposition properties of micron-MnO2 instead of onset temperature of exothermic reaction changing simply.
The activation energy of thermite system decreased with the reduction of Al particle sizes in micron-level, while in nanolevel the activation energy markedly increased.
Finally, the possible reasons for phenomenon were discussed.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Song, Jia-xing& Guo, Tao& Ding, Wen& Yao, Miao& Yang, Li& Zhang, Xiao-nan…[et al.]. 2020. The Effect of Al Particles Size on the Thermal Behavior and Kinetics of Al-MnO2 Thermite System. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1128128
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Song, Jia-xing…[et al.]. The Effect of Al Particles Size on the Thermal Behavior and Kinetics of Al-MnO2 Thermite System. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1128128
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Song, Jia-xing& Guo, Tao& Ding, Wen& Yao, Miao& Yang, Li& Zhang, Xiao-nan…[et al.]. The Effect of Al Particles Size on the Thermal Behavior and Kinetics of Al-MnO2 Thermite System. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1128128
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1128128
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر