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Experimental Study on the Combustion Characteristics of Magnesium using Infrared Thermography and FE-SEM

적외선 열화상법 및 FE-SEM을 활용한 마그네슘 연소특성에 관한 실험적 연구

  • Lee, Jun-Sik (Dept. of Aeronautical Mechanical Engineering, Changshin University) ;
  • Nam, Ki-Hun (Dept. of Fire & Disaster Prevention Engineering, Changshin University)
  • 이준식 (창신대학교 항공기계공학과) ;
  • 남기훈 (창신대학교 소방방재공학과)
  • Received : 2020.09.17
  • Accepted : 2020.10.05
  • Published : 2020.12.31

Abstract

Magnesium powder has been widely used in various industries because it is light weight and extremely high mechanical strength including aeronautics and chemicals. However, magnesium, as a combustible metal, poses serious safety issues such as fires and explosions if it is not managed properly. Especially, magnesium's max adiabatic flame temperature is 3,340℃ and it is impossible to extinguish it by using water, CO2 and Halonagents. The aim of this study is to identify the combustion characteristics of magnesium powder. We carried out a combustion experiment, using 1 kg of magnesium (purity > 99 %, particle < 150 ㎛). The features of the magnesium burning process were scrutinized using infrared thermal image analysis. Also, a field-emission scanning electron microscope (FE-SEM) were used employed to analyze particulate composites and properties. It concludes the significant tendency of magnesium fire and light, combustion carbide's particle characteristics. This study contributes to make better prevention and response manners to magnesium fires, as well as fire investigation measures.

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