Study on the In-Depth Composition of Beads Formed by Fuse Breaking of Electric Wire at Different Oxygen Concentrations by Auger Electron Spectroscopy
GAO Wei1, 2, WU Ying2, LIU Shu-jun2, WANG Lian-tie2
1. Northeastern University, Shenyang 110004, China 2. Key Laboratory for Fire Scene Investigation and Evidence Identification, Ministry of Public Security Shenyang Fire Research Institution, Ministry of Public Security, Shenyang 110034, China
Abstract：The ambience has a critical effect on the characteristic of bead formed by fuse breaking of the electric copper wire in fire. In order to study the influence of oxygen concentration in surroundings on the characteristic of bead formed by fuse breaking, firstly, the oxygen concentration of typical things such as wood, paper, foam, rubber and plastic etc when they were burning was measured. The extreme conditions of oxygen concentration of typical things were ascertained when they were burning. Accordingly the oxygen concentration of simulated environment (100% N2, 10% O2+90% N2, and 20% O2+80% N2) was determined. Secondly, the in-depth composition of beads formed by fuse breaking of the electric copper wire in different circumstances was studied by AES. The relationship is almost linearity between the average oxygen concentration and the ambient oxygen concentration. Consequently, from the measured oxygen concentration, the authors can deduce the ambient oxygen concentration and the fire cause.
Key words：Fire;Oxygen concentration;Fuse breaking of the electric wire;Bead
高 伟1，2，吴 莹2，刘术军2，王连铁2 . 采用AES深度刻蚀研究不同氧气含量下短路熔痕的成分[J]. 光谱学与光谱分析, 2010, 30(07): 2003-2005.
GAO Wei1, 2, WU Ying2, LIU Shu-jun2, WANG Lian-tie2 . Study on the In-Depth Composition of Beads Formed by Fuse Breaking of Electric Wire at Different Oxygen Concentrations by Auger Electron Spectroscopy . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2010, 30(07): 2003-2005.
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