CHINESE JOURNAL OF ENERGETIC MATERIALS
+Advanced Search

Preparation and Reaction Characteristics of Spherical Al-Si Alloy Fuel
Author:
Affiliation:

1.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology,Beijing 100081, China;2.Liaoyang Military Representative Office of Army Equipment Department, Shenyang 111000, China;3.Tangshan Weihao Magnesium Powder Co., Ltd, Tangshan 064406, China

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
    Abstract:

    To satisfy the application of new type of metal alloy fuels in propellants and explosives, the spherical Al-Si alloy fuels with Si mass fraction of 12% and 20% were prepared by high-speed centrifugal atomization with absent-oxygen atmosphere. SEM, XRD, metallographic analysis were taken to study the structures and the constitutions of the alloys. Oxygen bomb calorimeter and TG-DSC were used to investigate the heat of combustion and thermal oxidation characteristics of the fuels. The morphologies and components of Al-20Si thermal oxidation products were tested in situ at 550, 620 , 1000 ℃ and 1200 ℃. Results show that the Al-Si particles are typical spherical, and core-shell structures. The shell is mainly formed from primary silicon and its particle size increases with an increased in the particle size of the alloy fuel. The cores is a three-dimensional structure of reticulated Si skeleton. The heat of combustion of Al-12Si is 29.285 kJ∙g-1, and the mass of thermal oxidation reaction to 1200 ℃ is 51.17%. The heat of combustion of Al-20Si is 29.039 kJ∙g-1, and the mass of thermal oxidation reaction to 1200 ℃ is 43.33%.

    Reference
    Related
    Cited by
Article Metrics
  • PDF:
  • HTML:
  • Abstract:
  • Cited by:
Get Citation

闫石,潘兵,袁庆庆,等.球形Al-Si合金燃料的制备及其反应特性[J].含能材料,2020,28(8):766-772.
YAN Shi, PAN Bing, YUAN Qing-qing, et al. Preparation and Reaction Characteristics of Spherical Al-Si Alloy Fuel[J]. Chinese Journal of Energetic Materials,2020,28(8):766-772.

Cope
History
  • Received:October 08,2019
  • Revised:May 13,2020
  • Adopted:January 13,2020
  • Online: May 08,2020
  • Published: August 25,2020