﻿ 小口径运动枪射击残留物的微观形态研究 Microscopic Morphology Analysis of Residue in Small Caliber Sport Guns

Open Journal of Nature Science
Vol.06 No.04(2018), Article ID:26009,7 pages
10.12677/OJNS.2018.64047

Microscopic Morphology Analysis of Residue in Small Caliber Sport Guns

Li Huang*, Yahong Zhou, Ruiqian Zhao

Jiangsu Police Institute, Nanjing Jiangsu

Received: Jul. 3rd, 2018; accepted: Jul. 13th, 2018; published: Jul. 20th, 2018

ABSTRACT

Scanning electron microscopy (SEM) was used to analyze the microscopic morphology residue in small caliber sport guns. The difference between small caliber motion gun and ordinary standard pistol was found by analyzing its microstructure. At the same time, shooting debris particles of small caliber sport pistol of different types were classified, and the characteristics of different types of small caliber gun were summarized. The results of the study will help the police quickly identify whether the source of the gunshot residue is from a small caliber gun or whether it comes from a gun reformed by a small caliber gun, providing the direction for the investigation of the case.

Keywords:Scanning Electron Microscope, Small Caliber Sports Gun, Gunshot Residue, Micromorphology

Copyright © 2018 by authors and Hans Publishers Inc.

1. 引言

2. 实验内容

2.1. 实验仪器与样本

2.2. 实验方法

3. 实验结果和分析

3.1. 小口径运动枪射击残留物样本的微观形态分析

1) 多孔近球形颗粒：如图2所示，这类颗粒总体上近似球形，表面有多处不规则孔洞，并伴有不规则凸起，直径在10~40微米之间。

2) 圆形凸起颗粒：如图1图4所示，这类颗粒外形呈圆形，表面呈大量凹凸不平的形状，形似山丘状地形，直径在10~20微米之间。

3) 叠层型不规则颗粒：如图3所示，该类颗粒形状犹如一个个小颗粒通过横向纵向等方向拼合起来，成不规则的外形，直径在30~80微米之间。

3.2. 小口径运动枪与制式手枪射击残留物微观形态区别

Figure 1. Microstructure of “Shuanghuan” empty bullet

Figure 2. Microstructure of “Sanjiao” short bullet

Figure 3. Microstructure of “Shuanghuan” long bullet

Figure 4. Microstructure of Germany R-25 bullet

Figure 5. Microstructure of 54 gun shooting residue particles

Figure 6. Microstructure of 54 gun shooting residue particles

Figure 7. Microstructure of 64 gun shooting residue particles

4. 结论

2017年度江苏警官学院科研项目“小口径运动枪射击残留物颗粒的微观形态研究和元素成分分析”(编号：2017SJYZQ03)。

Microscopic Morphology Analysis of Residue in Small Caliber Sport Guns[J]. 自然科学, 2018, 06(04): 366-372. https://doi.org/10.12677/OJNS.2018.64047

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10. NOTES

*通讯作者。